Chemical characterization of heavy minerals and stream sediment of Betare-Oya gold district Neoproterozoic Fold Belt, Eastern Cameroon: implications for gold mineralization

Chemical characterization of heavy minerals and stream sediment of Betare-Oya gold district Neoproterozoic Fold Belt, Eastern Cameroon: implications for gold mineralization | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Chemical characterization of heavy minerals and stream sediment of Betare-Oya gold district Neoproterozoic Fold Belt, Eastern Cameroon: implications for gold mineralization Ndema Mbongué Jean-Lavenir, Mbua Elvis Ngomba, Emmanuel Eseya Mengu Junior This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5289554/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 11 You are reading this latest preprint version Abstract Stream sediment geochemical survey was carried out in Boyo situated in the Betare-Oya gold district. The study was aim to determine the primary source of gold, mineralogy of heavy mineral concentrate, provenance, weathering conditions and tectonic setting. Samples were collected by panning and analyzed using inductively couple plasma mass spectrometry method. Heavy minerals present in concentrates include gold, zircon, magnetite. The gold grade ranges from 15–37 and could be overestimated due to the presence of nuggets. Gold grains vary in size from 0.125-1 mm and exhibit sub-angular and angular shape indicating they were proximal to the source. Sediments shown enrichment in Au (8440- >10000 ppb), Mn (250–350 ppm), Hg (40–560 ppm), Th (186- >200 ppm), Y (67.5–117 ppm), large ion lithophile elements, rare earth element (REE: 1684.9-2382.6 ppm) and depletion in Fe 2 O 3 (1.08–2.25 wt.%), Nb (0.4–1.6 ppm), Mo (0.03–0.21 ppm), high field strength elements. REE patterns show LREE enrichment (La N /Sm N = 1.06–1.24) relative to HREE (Gd N /Yb N = 2.20–9.29) and negative Eu anomaly (Eu/Eu* = 0.24–0.31). Au may be linked to sulphide minerals and the sulphidation could be the dominant mechanism of gold ore deposition. The association Bi-Pb-Sb-Sn-Zn are interpreted as mineralization factor and Bi, Pb, Sb, Sn, Zn are regarded as pathfinders for Au. The sediments were sourced intermediate igneous provenance, the detrital fraction and the source of contamination resulted from granitic sources. Sediments were immature, undergone intense weathering, transported in a short distance and were deposited in a passive margin consistent with rift environments. Stream sediment proximal sulphidation intermediate igneous rocks immature intense weathering Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 1 Introduction Gold occurs in Archean to Recent deposit types and the wide variability of their deposits is related to transport and concentration through magmatic, hydrothermal and sedimentary possesses. This precious metal occurs in low content in magmatic rocks; it is also found in hydrothermal ore vein, contact metamorphic deposit, pegmatite, minerals such as pyrite, arsenopyrite and quartz [1]. In plutonic environments the gold deposits consist of simple veins that occupy fissures, second- or third‐order structures linked to crustal discontinuities notably along shear zones in plutonic level granitic rocks and associated metamorphosed wall rock [2]. Gold is considered to have been deposited under mesothermal condition from fluids that comprise magmatic, metamorphic, and meteoric components [3]. Hydrothermal deposits (veins) associated with quartz and pyrite and placers deposits that derived from the weathering of gold- bearing rocks contain significant amounts of gold [4]. The quartz-pebble conglomerate deposits and the largest auriferous concentrations on earth are classified as modified paleo-placers closely related to lode deposits [4]. Placer or alluvial gold deposits proven from erosional processes, transportation and sedimentation of minerals from gold- bearing rocks in supergene environments. Morphological features of gold evolve more rapidly than silicates in response to physical weathering. Morphological changes in gold particles can be attributed to two weathering processes: hammering, the collision of gold with other particles, and abrasion or re-working of the surface by moving particles [5]. The shape modification is attributed to the mass transport of colluvial gold; significant morphological changes in gold particles are attributed to distance of travel, or time spent in the river and the nature of the parent rocks [5]. The general characteristics of gold grain morphology is indicative of transport distance [6]. In the fluvial environment, the shape and size of placer grains reflect the history and evolution during transport [5]. Alluvial gold grain morphology, texture and chemistry have been used successfully in the determination of primary gold mineralization, the type of mineralization and the potential host rock [6–8]. In regions with poor rock exposure, morphology and microchemical study of placer gold grains from the alluvial deposits have been more used to identify the original hypogene sources [9, 10]. Sediments show evidence of the erosional history and the analysis of their provenance helps to trace the tectonic setting and paleoenvironments. The East region of Cameroon is well known for its gold mineralization [8, 11–19]. Primary gold deposits occur in quartz veins within the Central Cameroon Shear Zone system [12]. The Betare Oya gold district is one of several shear-related gold deposits in the East region of Cameroon, which is mine for its alluvial gold [12]. The available research works of gold deposits in the Betare-Oya gold district are mostly focused on the characterization of alluvial and lode‐gold deposits based on field, petrography and geochemical studies of placer gold and rocks [8, 11, 14, 16, 17, 20, 21]. The electrical resistivity method was used to delineating auriferous structures [13]. However, no work has been done to assess the primary source of gold and to characterize gold and heavy minerals in stream sediments of Boyo area. In this contribution, we present field investigations, mineralogy and geochemical data from the stream sediment of Boyo area. The aim of this study is to determine the primary source of gold mineralization, the mineralogy of heavy mineral concentrate, as well as provenance, intensity of weathering and tectonic setting. 2 Geologic setting 2.1 Regional geology The Boyo area (Fig. 1 ) is situated in the Adamawa-Yade domain within the Pan-African fold belt in Cameroon [22–24]. This fold belt is regarded as a major Neoproterozoic orogenesis linked to the Trans-Saharan Belt in west Africa and extends in NE Brazil with the Brasiliano orogenesis [25]. The Pan-African fold belt in Cameroon also called Neoproterozoic fold belt or North-Equatorial fold belt is made up of three structural domains [24, 26]: (1) The Yaoundé domain (YD) is made up of a Neoproterozoic nappe that thrusts southward onto the Congo craton and Neoproterozoic metasedimentary units notably Ntui-Betamba, Mbalmayo-Bengbis-Ayos and Yaoundé Series (Fig. 1 ). The Oubanguides Nappe in the Republic of Central Africa represents the eastern extension of the above thrust. This domain includes low- to high-grade metasediments dated at 616 Ma, associated with an alkaline magmatism [26, 27], and metamorphosed under a medium- to high pressure metamorphism and granulite facies (750–800°C and 10–12 kb). The metasediments are considered as epicontinental deposits and were deposited to a passive margin or to an intracontinental distensive environment [26]. (2) The Adamawa–Yade domain (AYD) extends east of the Tchollire–Banyo shear zone (Fig. 1 ). It is characterized by major shear zones striking NE that extend to NE Brazil [25]. This domain represents a Paleoproterozoic basement that was dismembered during the Pan-African. The AYD is composed of (i) Paleoproterozoic formations such 2.1 Ga granulites that was reworked in the Pan-African time, (ii) Neoproterozoic rocks (700 Ma) formed by low- to medium- grade metasedimentary and volcano-sedimentary rocks and (iii) syn- to late-tectonic granitoids [23]. (3) The Western Cameroon domain (WCD) is located west of the Tcholliré-Banyo shear zone and extends along the western border of Cameroon (Fig. 1 ). The WCD consists of (i) Neoproterozoic medium- to high- grade metasediments and metavolcanic rocks of tholeiitic and alkaline affinities dated at 800 Ma [28]; (ii) Pan-African pre, syn-, to late-tectonic granitoids emplaced between 660 and 580 Ma [23]; (iii) post-tectonic granitoids; (iv) unmetamorphosed sedimentary and volcanic rocks. 2.2 Local geology The Boyo area lies between longitudes 13° 57’ − 13° 59’ East and between latitude 5° 27’ − 5° 30’ North. The geology of the Boyo area is related to the Lom Basin which is a syn-depositional Neoproterozoic pull-apart basin bordered by the Sanaga Fault [29, 30]. The Sanaga Fault is a relay of the Central Cameroon Shear Zone (CCSZ) system which is a continental scale trans-current fault and potentially a deep tapping crustal fault that has focused gold-bearing fluids into structures in the Lom basin [29, 31]. The Lom basin is a Neoproterozoic rock sequence composed mainly of metasedimentary rocks, grouped into two main structural and metamorphic units: the monocyclic and polycyclic units. The monocyclic unit is made up of volcano-sedimentary rocks, gneiss, quartzite and meta-conglomerate associated with grabens [32]. The polycyclic unit consists of staurolite micaschist, gneiss, and staurolite-chloritoid mylonite, related to the horst structures [29]. Quartz veins and granitoids generally intrude both units and show evidence of sinistral deformation. These quartz veins are the product of hydrothermal fluids which originated from nearby intrusive bodies. Gold mineralization and other mineral occurrences in the Lom Basin are associated with these granitoids intrusions [30]. Late- to post‐tectonic intrusions, (some of which developed thermal aureoles in the host rocks) are also common [30]. The Lom series is well-known for its gold mineralization [33, 34]. It is characterized by intensive artisanal and semi-mechanized alluvial gold exploitation. The Boyo area is situated in the Betare-Oya gold district which lies within the Lom Basin [13, 16, 17, 31, 32, 35]. The Betare-Oya gold district consists of metatuff, volcaniclastics, sedimentary-derived schists, and staurolite-garnet micaschist intercalated with quartzite and metaconglomerate [36]. Volcaniclastic rocks are felsic to intermediate in composition. Betare-Oya gold district is underlain by a series of granitic rocks including granodiorite and tonalite that are locally cut by systems of gold‐ bearing quartz veins. Mineralization is expressed by the ubiquitous occurrence of sulphide‐ bearing quartz veins that strike between N30°E and N40°E and are gently north to south dipping. Primary gold in the Betare-Oya gold district is hosted in quartz veins that truncate metasedimentary rocks in the vicinity of small local granitoid intrusions [20]. Tectono‐metamorphic evolution of the Lom Basin is polyphase with two successive D 1 and D 2 deformations leading to an N50°E – N70°E steep regional foliation [30]. Dextral or sinistral faults, locally parallel to the foliation, characterize the later stages of the structural evolution. Deformation is associated with low‐pressure regional metamorphism (garnet-staurolite-andalusite-sillimanite). 3 Methods of investigation Sampling sites in the study area were located using the global positioning system (GPS) and coordinates introduced into a geographic information system (GIS) platform (ArcGIS v. 10.1) to generate a map showing the spatial distribution of the sampling points in the study area. The main river call River Boyo and its tributaries were sampled and panned for gold grain recovery, a total of ten (10) samples were collected upstream along active stream beds. The sediments were sampled at water depths that vary between 1 and 1.75 m. 10 kg of sediment are collected into a measuring bucket using a spade and then weighed. The sample was then poured into an aluminum basin and panned to obtain the heavy mineral concentrate. The appropriate sediment size fraction < 150 µm is chosen for the stream sediment analysis. These concentrates were put in sample bags, coded and taken to the laboratory. They were further spread out on sheets and sun dried for four to five days. In the laboratory, the heavy mineral concentrates collected were subjected to a series of investigations: (i) Magnetic separation was done to separate magnetic fraction from the non-magnetic fraction. (ii) The magnetic fraction of the concentrates was examined in order to carry out mineral identification. This was done using the Euromex Eco Blue polarization microscope at the Geological Laboratory of the University of Buea. (iii) Geochemical analysis was done at Activation Laboratories (ACTLABS) in Canada, for the determination of major, trace and rare earth elements concentration using inductively coupled plasma-mass spectrometry (ICP-MS) technique. Argon plasma with working temperature of 6000 – 8000°C was generated by radio frequency excitation. 10g of prepared solution was fuse with lithium-borate, methaborate and then leached with 30% dilute nitric acid (HNO 3 ) were injected into the plasma. The solution was excited and produced analyte ions which were separated and measured by mass spectrometry. To test for analytical precision, replicate samples chosen from the batch were randomly in each analysis, the results of replicate analyses and typical detection limits were reported by ACTLABS. The ICP-MS analytical method is used by many authors to evaluate the geochemical distribution of gold in stream [11, 37-40]. Elements displaying numerical values have been used to conduct multivariate statistical analysis such as Pearson’s correlation matrix and factor analysis. The sediment provenance is determined using the major elements discriminant function diagram in which [41]: Discriminant function 1 = -1.773 TiO 2 + 0.607 Al 2 O 3 + 0.76 Fe 2 O 3 (total) - 1.5 MgO + 0.616 CaO + 0.509 Na 2 O - 1.224 K 2 O - 9.09; (1) Discriminant function 2 = 0.445 TiO 2 + 0.07 Al 2 O 3 - 0.25 Fe 2 O 3 (total) - 1.142 MgO + 0.438 CaO + 1.475 Na 2 O + 1.426 K 2 O ) - 6.861. (2) The degree of weathering and the maturity of sediment are check with the help of weathering indices such as the chemical index of alteration (CIA) by Nesbitt and Young [42] and the index of compositional variability [43]. Relation follows: CIA = 100 × molar [ Al 2 O 3 /( Al 2 O 3 + CaO* + Na 2 O + K 2 O )], (3) with CaO* = molar [ CaO – (10/3 x P 2 O 5 )]. (4) ICV = molar [( Fe 2 O 3 + K 2 O + Na 2 O + CaO + MgO + MnO )/ Al 2 O 3 )]. (5) 4 Results 4.1 Mineralogy The local geology map showing the sampling point and gold grade indicates that the main lithology of Boyo is made up of staurolite micaschist (Fig. 2a). Samples from the main Boyo stream and from the first and second-order tributaries were taken at appropriate locations above the confluence point. Ten (10) samples were collected and all the samples show a lot quantity of gold grains (Fig. 2b). The magnetic fraction of the heavy mineral concentrate has been submitted for petrographic investigation (Fig. 2c). The heavy minerals present in the concentrate include gold (40 - 50%), zircon (20 - 30%) and magnetite (5-10%; Fig. 2c). The gold grains range from 0.125 to 1 mm in size; the grains are generally poorly sorted, sub-angular, angular and sub-surrounded (Fig. 3). The coarse grains of gold > 100 µm are regarded to gold nuggets, they are mostly sub-angular and angular in shape (Fig. 3c, d). Some have cavities filled by impurities, probably sand and/or quartz. Zircon includes zoning and non-zoned crystals; the zoning zircon displays elongated crystal showing a dark rim and a light core. Magnetite shows sub-angular small crystals displaying dark colour that range from in 0.1 to 0.9 mm in size. 4.2 Geochemistry 4.2.1 Major elements The major element composition presented in Table 1 shows that Fe 2 O 3 and Al 2 O 3 content range from 1.08 - 2.25 wt.% (mean: 1.49 wt.%) and 0.21 to 0.73 wt.%, respectively. Na 2 O (0.02 – 0.03%) displays constant values (Table 1), the rest of the major oxides (CaO: 0.05 – 0.17 wt.%, P 2 O 5 : 0.06 – 0.12 wt.%, TiO 2 : 0.08 – 0.11 wt.%, MgO: 0.04 – 0.16 wt.% and K 2 O: 0.03 – 0.07 wt.%) exhibit depleted values. The index of chemical variability (ICV) and the chemical index of alteration (CIA) values range globally from 2.12 to 10.16 (average: 5.24) and 83.48 to 94.60% (average: 86.36%), respectively. Except samples P4, P5, P8 that show CIA values of 71.19%, 119.19% and 65.34%, respectively. 4.2.2 Trace elements According to Table 1, the concentration of gold varies from 8440 to > 10000 ppb. Other enriched trace elements include transition metals such as Mn (250 – 350 ppm; av. = 300.5 ppm), Hg (40 – 560 ppb, av.: 244 ppb), Y (67.5 - 117 ppm; av. :85.35 ppm), Ag (0.062 – 51.3 ppm; av.: 29.94 ppm), Ni (8.1 – 39,4 ppm; av. :18.91 ppm), and Th (186 - > 200 ppm). The studied samples are depleted in high field strength elements (HFSE) such as Zr (2.3 – 5.6 ppm), Hf (0.3 – 0.4 ppm), Nb (0.4 – 1.6 ppm), Ta < 0.05 ppm) and enriched in large ion lithophile elements (LILE) like Sr (6.5 – 15.9 ppm), Ba (36.2 – 56.5 ppm), Pb (19.6 – 25.3 ppm), Ce (794 – 1300 ppm). Ge, As and Se contents fall below their detection limit (Table 1). The Table 2 presents the descriptive statistics of elements; skewness and kurtosis coefficients of data for Ag, Hg, U show negative values. Kurtosis coefficients of data for Cr (2.58), Sb (4.27), Sr (3.85) and V (3.19) are considerably higher compared to other elements. Ni (2.14), Cs (1.98) Sr (1.63), V (1.63) show slightly high skewness values relative to Bi (1.3), Y (1.07) and Re (1.06; Table 2). Skewness and mean values indicate an asymmetric data distribution pattern (Table 2). This is in accordance with the frequency distribution graphs in which trace elements show an asymmetric distribution function (Fig. 4). The standard deviation values are high for Ag (20.03), Hg (108.14), Mn (30.10), Y (14.43), Ni (9.90) compared to Ba (6.31), V (5.70), U (5.55) and Cr (5.03; Table 2). The coefficients of variation (CV) values are greater to 50% for Ag, Hg, Ni, Sb and Sc smaller than 50% for the rest of elements. 4.2.3 Rare earth elements The total rare earth element (REE) contents range from 1684.9 to 2382.8 ppm (Table 1). The average concentration of REE is higher (2270.17 ppm) compared with the value of the Upper Continental Crust (UCC) that is 10.58 ppm [44]. Thus, REE contents in this study are about 214 times the values of the UCC. The REE patterns normalized to the UCC show light rare earth elements enrichment (La N /Sm N = 1.06 - 1.24) relative to heavy rare earth elements (Gd N /Yb N = 2.20 -9.29), with a negative Eu anomaly (Eu/Eu*= 0.24 - 0.31; Fig. 5). 4.3 Multivariate statistical analysis 4.31 Pearson’s correlation coefficient factor The correlation coefficient value of the elements is given in Fig. 6. The strong correlation coefficient values (r = 0.70 - 0.99) are represented with the yellow colour, significant moderate correlation coefficient values (r = 0.50 - 0.69) show red colour and very strong correlation coefficient values (r = 0.80 - 0.99) are in green. Fe 2 O 3 exhibits negative correlations with its correspondents, except with Na 2 O (r = 0.87). The values of Ag increase with the values of Al 2 O 3 (r = 0.59) and P 2 O 5 (r = 0.67), while the concentration of Bi decreases with the values of Nb (r = -0.50) and Rb (r = -0.56; Fig. 6). The majority of other element pairs together exhibit positive correlation. 4.32 Factor analysis The eigenvalue, the percentage of the variance and the cumulative percentage have been determined in accordance with the factors. The highest eigenvalue which is 13.83 is related to the first component with variability percentage of 30.23% (Table 3). The varimax rotation method is applied to the coefficient factors; six element associations represented by factors 1 to factor 6 accounting for 29.94 of the eigenvalues and cumulatively accounting for 92.82% of the total data variance were identified according to Table 3. The factor 1 (F1) contains Ba, Co, Cr, Cs, Cu, Li, Mn, Mo, Nb, Re, Sr, V, Zn, Zr and accounts for 30.23% while the factor 2 (F2) is form only with Pb with a variability percentage of 26.22% (Table 3). The factor 3 (F3) and the factor 4 (F4) includes Bi, Pb, Sb, Sn, Zn accounting for 11.43% and Hf, U, Y represents 9.77% of total variance, respectively. In fine, the factor 5 (F5) displays an association of B, Cs, Li, Mn, Mo, Nb, Rb, Sr, U, Zr that contributes for 9.75% and the factor 6 (F6) is made only with Sb representing 5.42%. 5 Discussion 5.1 Gold grains variation in stream sediments Stream sediments represent materials weathered from parent rock transported downstream and therefore, the mineral content of stream sediments depends on the primary mineral of the rock, the degree of weathering and the dispersion mechanism [45, 46]. The gold grade variation in the study area ranges from 15 to 37 and could be overestimated due to the presence of nugget golds [40, 47, 48]. The transport of gold in fluvial environment depends of the grain size, and the shape. The recovered gold grains range from 0.125 to 1 mm in size (Fig. 3). This fraction of particle size corresponds to fine and coarse sand. The gold grains show various degrees of hammering, abrasion and transportation distance. They display various outlines and morphologies confirming evolution in a fluvial environment similar to those described in Otago in New Zealand and in Southern Cordillera in Chile [5, 6]. Based on the morphological characterization of gold grains [6], the Boyo alluvial gold grains are proximal to the source. Indeed, they appear oblong with angular and sub-angular edges (Fig. 3). They experienced little attrition and deformation in the fluvial system and are uniformly distributed; this contrasts the result of Embui et al. [49]. There is no significant variation between the Au concentrations obtained from panning and geochemical exploration. The concentration of Au in stream sediments is usually very low ( 10000 ppb (Table 1). 5.2 Provenance The correlation analysis (Fig. 6) mostly revealed positive correlation; the correlation coefficients of selected elements are plotted in Fig. 7. The similarity in the patterns for TiO 2 , Ag, Cu and Bi (Fig. 7) implies some geochemical coherence and suggests similar input sources and common geochemical characteristics of the elements. The factor analysis is made up of six factors in which the factor 1 (F1) is mostly loaded with lithophiles and transitional metals: Ba, Co, Cr, Cs, Cu, Li, Mn, Mo, Nb, Re, Sr, V, Zn, Zr. The trace element content of this factor points to the presence of granitic rocks and suggest a lithologic control. These elements are probably produced by the weathering of the basement rock. The variability of the elements in the factor 1 indicates they have been controlled by the mixed rock types. Zr presents in this factor may be explained by the presence of zircon, confirming the aforementioned result. The factor 3 (F3) which is associated with chalcophiles such as Bi, Pb, Sb, Sn, Zn could be interpreted as the mineralization factor barren with respect to Au and the elements Bi, Pb, Sb, Sn, Zn may be regarded as potential pathfinders for Au. This type of association is attributed to the hydrothermal alteration of wall rock [49]. The presence of these elements in the same factor suggests that gold may be associated with sulphide minerals. Therefore, we suggest that the sulphidation event could be the dominant mechanism of gold ore deposition. The factor 5 (F5) also includes lithophiles and transition elements (B, Cs, Li, Mn, Mo, Nb, Rb, Sr, U, Zr) suggesting the presence of granitic rocks and lithologic control. Artisanal gold exploration has been carried out in Boyo area and the on-going artisanal gold mining supports the placer gold mineralization [40]. The evidence of placer gold mineralization is also supported by the presence of free gold grains in the panning and weighing method. The stream sediment show enrichment in REEs (1684.9 – 2382.8 ppm, av. = 2270.17 ppm) notably LREEs (53 – 1300 ppm, av. = 433.62 ppm), this could be due to the presence of REE- bearing phase. The negative Eu anomaly could be due to the presence of feldspar (plagioclase). The parallelism of the patterns suggests that the REE have similar bulk distribution coefficients during subsequent differentiation [51]. The distribution of Au in the study area is regular (Table 4), the River Boyo and tributaries show a lot quantity of gold in the pan concentrate (Fig. 8a). The geochemical distribution maps for elements of factor 3 (Bi, Pb, Sb, Sn, Zn) are generated (Fig. 8b-f). The concentrations of these elements exhibit considerable variation in space distribution, Zn and Pb have the highest concentrations and show a geographic trend (Fig. 8c, f). The spatial distribution of Bi, Sb and Sn is sporadic with no clear pattern along the drainage system (Fig. 8b, d, c). The coefficient of variation (CV) value ranges from 7.42 – 73.83 (average = 29.75; Table 2), consistent with a spatially homogeneous distribution of element concentrations [52]. Also, the standard deviation (Std Dev) values ≤ 30.10%; Table 2) suggest a spatially homogeneous distribution. Only Hg shows Std Dev of 180.14% reflecting a non-homogenous surface distribution and a high variability of this elements. Low positive skewness and low negative kurtosis coefficients indicate that individual elements are weakly right-skewed and slightly light-tailed distributed, respectively. This result is confirmed with the selected histogram plots in which the raw data analysis shows an asymmetric distribution (Fig. 4). The Al 2 O 3 /TiO 2 ratio are usually used to determine the provenance of sediments. Al 2 O 3 /TiO 2 ratio of 21 – 70 refers to felsic igneous rock provenance, from 8 – 21 indicates intermediate igneous rocks and Al 2 O 3 /TiO 2 ratio of 3 - 8 denotes mafic igneous rocks provenance [53]. The stream sediments of Boyo have Al 2 O 3 /TiO 2 ratio of 3.08 – 6.70 (Table 1), consistent with intermediate igneous source. In addition, the discriminant function diagram by Roser and Korsch [41] is used to assess the sediment provenance. In this diagram, Boyo sediments plot in the field of intermediate igneous provenance (Fig. 9a). Therefore, the sediments and the placer gold deposit of Boyo originated from intermediate igneous rock. 5.3 Intensity of weathering, sources of contamination and tectonic setting The chemical index of alteration (CIA) and the index of compositional variability (ICV) values are applied to determine the maturity of sediments and the degree of weathering of rocks in the source area. High ICV values > 1 denote immature sediments while lower ICV values < 1 reflect mature sediments [43]. The Boyo samples show ICV range of 2.12 to 10.16 (average: 5.24) suggesting the sediments have a high degree of compositional immaturity (Fig. 9b). This indicates that the elements were relatively immobile during alteration [54, 55]. In addition, sediments display poorly sorted angular and sub-angular grains indicating they have been deposited close to the source rock and have not been transported very far. Regarding CIA index, CIA value comprises between 35 to 55% indicates weak weathering of the source area, 60 < CIA 80% suggests high or intense weathering [56, 57]. The majority of samples of Boyo show CIA value in the range of 83.48 to 94.60% (average: 86.36%) consistent with sediments of intense weathering (Fig. 9b). Meanwhile samples P4 (CIA = 71.19%) and P5 CIA (65.34%) are compatible with moderate weathering, while sample P8 (CIA = 119.19%) fall away (Fig. 9b). Considering all this, we suggest that the Boyo sediments have a high degree of compositional immaturity, transported in a short distance and have undergone intense weathering of the source area. La and Yb are used to assess the source of contamination and detritus. The Boyo sediments display La and Yb contents in the range of 383 to 630 (average: 516.6) and 3 to 10.6 (average: 5.39), all in ppm, respectively (Table 1). The detrital fraction of the studied sediments is constrained by La/La* versus Yb discrimination diagram [58]. The graphical representation shows that sediments plot onto the field of detritus (Fig. 9c) suggesting a detritus-free mineralization. This result is also supported by Ni (81 - 39.4 ppm), V (29 – 48 ppm) and Sc (2.6 – 10.4 ppm) contents suggesting clastic and detritus inputs [59]. Meanwhile, low concentrations of Al 2 O 3 (0.21 - 0.73 wt.%), TiO 2 (0.08 - 0.11 wt.%), Na 2 O (0.02 - 0.03 wt.%), K 2 O (0.03 - 0.07 wt.%) and the correlation between Na 2 O and K 2 O (r = -0.54) suggest little sources of contamination. Furthermore, the Boyo stream sediments display La content of 383 – 1300 ppm reflecting felsic input. Thus, we suggest that the source of detrital contamination in the Boyo area could be result from granitic sources 60]. Generally, sediment geochemistry is related to specific tectonic environment [61-63]. The discrimination diagrams of tectonic settings are used to evaluate the tectonic setting [61, 62]. In these diagrams (Fig. 9d to 9f), the Boyo sediments cluster near the field of passive margin (PM) setting, consistent with rift environments. Conclusion The purpose of this study was to determine the primary source of gold mineralization, the mineralogy of heavy mineral concentrate, as well as provenance, intensity of weathering and tectonic setting. The findings show that: The minerals present in the heavy mineral concentrate include gold, zircon and magnetite. The gold grade ranges from 15 to 37 and could be overestimated due to the presence of nugget golds. They vary from 0.125 to 1 mm in size and exhibit sub-angular and angular shape indicating they are proximal to the source. The sediments show enrichment in Au, Mn, Hg, Th, Y, LILE and REE depleted values in Fe 2 O 3 , Nb, Mo and LILE. The Upper Continental Crust normalized REE patterns show LREE enrichment relative to HREE and a negative Eu anomaly. Au could be linked to sulphide minerals and the sulphidation event may be the dominant mechanism of gold ore deposition. The association Bi-Pb-Sb-Sn-Zn are interpreted as the mineralization factor and the elements Bi, Pb, Sb, Sn, Zn are regarded as potential pathfinders for Au. The alluvial sediments were sourced intermediate igneous provenance, the detrital fraction and the source of contamination resulted from granitic sources. Sediments were immature, poorly sorted, undergone intense weathering, transported in a short distance and were deposited in a passive margin consistent with rift environments. Declarations Conflicts of interest/Competing interests The authors have no competing interests to declare that are relevant to the content of this article. Funding No funding was received for conducting this study. Author Contribution N.M. J.L. and M.E.N. wrote the main manuscript text and E.E.M J. prepared figures 1-3. All authors reviewed the manuscript. Acknowledgements This paper is the result of the second author Master thesis research work at the University of Buea. We gratefully acknowledge the editors for the handling of the manuscript. Data availability Data sets generated during the current study are available from the corresponding author on reasonable request. Code availability Not applicable References Korbel P, Novak M. The complete encyclopedia of minerals. Grange Book PLC: United Kingdom; 2001. 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Tables Table 1 Chemical composition of stream sediment samples from Betare-Oya gold district Samples P2 P3 P4 P5 P8 P9 P11 P12 P14 P15 TiO 2 (%) 0.1 0.09 0.09 0.11 0.09 0.09 0.08 0.11 0.08 0.08 P 2 O 5 0.1 0.11 0.08 0.12 0.06 0.09 0.1 0.12 0.06 0.08 Na 2 O 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.02 MgO 0.09 0.1 0.07 0.07 0.08 0.07 0.16 0.07 0.04 0.07 Al 2 O 3 0.41 0.42 0.29 0.36 0.38 0.28 0.36 0.73 0.21 0.3 K 2 O 0.05 0.05 0.07 0.03 0.07 0.05 0.07 0.07 0.03 0.05 CaO 0.12 0.11 0.11 0.09 0.13 0.1 0.11 0.17 0.05 0.09 Fe 2 O 3 1.69 1.83 1.26 1.52 1.64 1.22 1.3 1.08 2.25 1.19 Al 2 O 3 /TiO 2 4.33 4.53 3.29 3.30 4.24 3.08 4.45 6.70 2.50 3.77 CIA 86.12 94.60 71.19 119.19 65.34 83.93 83.81 84.80 87.77 83.48 ICV 4.79 4.94 5.39 4.74 5.08 5.33 5.04 2.12 10.16 4.81 Ag (ppm) 32.7 40.8 8.47 46.1 4.13 0.062 48.2 51.3 20 47.7 As < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 10000 > 10000 > 10000 > 10000 > 10000 8440 > 10000 > 10000 > 10000 > 10000 B 1 1 2 2 2 2 2 2 1 1 Ba 50.8 45.5 42.4 41.6 43.4 37.4 40.6 56.5 36.2 38.1 Be 0.5 0.5 0.6 0.7 0.5 0.6 0.4 0.5 0.8 0.9 Bi 0.44 0.38 0.32 0.45 0.35 0.3 0.38 0.32 0.41 0.36 Cd 0.05 0.06 0.02 0.06 < 0.1 0.04 0.03 0.05 0.11 0.07 Co 5.1 5.4 3.2 4.2 4.1 3.3 3.4 7.3 2.6 3.4 Cr 25 25 20 23 23 18 18 34 17 20 Cs 0.22 0.19 0.2 0.16 0.24 0.18 0.21 0.25 0.12 0.14 Cu 8.9 9 9.1 10.1 11.3 0.4 6.4 9 3.1 5.7 Ga 0.1 0.43 < 0.02 0.73 < 0.02 < 0.02 < 0.02 1.4 < 0.02 < 0.02 Ge < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 Hf 0.4 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.4 Hg (ppb) 80 140 40 230 180 60 480 370 300 560 In 0.03 0.03 0.03 0.04 0.03 0.03 < 0.02 < 0.02 0.04 0.03 Li 1.4 1.3 1.3 1.1 1.5 1.2 1.4 1.9 0.8 1 Mn 322 302 295 311 331 293 288 350 250 263 Mo 0.16 0.14 0.09 0.06 0.17 0.09 0.09 0.21 0.03 0.09 Nb 1.1 0.9 1 0.6 1 1 1.1 1.6 0.4 0.7 Ni 39.4 27.7 26.1 12.6 19.2 12.9 11.8 21.5 9.8 8.1 Pb 25.3 21.3 21.8 23.1 22.4 23.9 21.9 20.5 21.7 19.6 Rb 2 1.8 2.2 1.5 2.3 2.1 2.3 2.6 1.1 1.4 Re 0.002 0.002 0.002 0.001 0.002 0.001 0.001 0.002 0.001 0.001 Sb 0.43 0.28 0.11 0.16 0.14 0.11 0.13 0.11 0.13 0.11 Sc 3.1 5.5 4.5 6.8 3.1 5.3 2.6 3.3 9.7 10.4 Se < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 Sn 1.12 0.9 0.97 0.91 1.01 0.88 0.96 0.88 0.92 0.81 Sr 10.9 10.5 10.1 9.3 11.4 9.5 10.7 15.9 6.5 9.7 Ta < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 Te 0.04 0.05 < 0.02 < 0.02 0.04 200 > 200 > 200 186 > 200 > 200 > 200 > 200 > 200 > 200 Tl 0.03 0.05 0.03 0.03 0.06 0.04 0.04 0.04 0.04 0.03 U 35.7 27.8 37.2 20.8 37.7 30.4 30.7 27.4 24.1 28.8 V 37 38 31 31 35 32 29 48 29 34 W 0.2 0.1 < 0.1 < 0.1 0.1 < 0.1 0.2 0.2 < 0.1 0.4 Y 80 80.7 93.4 76.9 86.1 85.8 69.8 67.5 96.5 117 Zn 29.9 26.2 21.6 31.6 25.1 22.2 21.7 31.3 22.4 23.2 Zr 4.2 3.5 4.1 3.5 4.5 3.6 4.5 5.6 2.3 3.3 La 576 470 630 383 614 513 545 496 416 523 Ce 1200 973 1300 794 1280 1070 1140 1050 883 1090 Pr 125 95.5 133 80 134 111 116 109 86.3 113 Nd 439 364 481 293 478 394 412 382 321 406 Sm 82 57.5 78.6 53 76.4 67 72.2 64.6 56.1 66.9 Eu 3.8 3.5 4.1 2.7 4.2 3.5 3.6 3.4 3.1 4.2 Gd 56 46.6 60.1 37.2 58.2 49.2 53.1 47.7 39.9 50.3 Tb 6.1 5.1 6.5 4.3 6.4 5.6 5.7 5.1 4.8 5.9 Dy 25.4 21.9 27.6 19.3 26.2 24.3 22.7 21.3 22.2 28.2 Ho 3.3 3.1 3.7 2.9 3.4 3.3 2.8 2.8 3.6 4.4 Er 6.5 7.2 8 7.3 7.1 7.7 6 5.6 9.7 11.6 Tm 0.6 0.9 0.9 1 0.7 0.9 0.6 0.6 1.3 1.6 Yb 3.2 5.3 4.9 6.4 3.4 5.4 2.8 3 8.9 10.6 Lu 0.4 0.6 0.6 0.8 0.4 0.6 0.3 0.3 1.2 1.4 ∑REE 2527.3 2054.2 2739 1684.9 2692.4 2255.5 2382.8 2191.4 1857.1 2317.1 (La/Sm) N 1.06 1.24 1.22 1.10 1.22 1.16 1.14 1.16 1.12 1.19 (La/Yb) N 11.38 5.61 8.13 3.78 11.42 6.01 12.31 10.45 2.96 3.12 (Gd/Yb) N 8.58 4.31 6.01 2.85 8.39 4.46 9.29 7.79 2.20 2.33 Eu/Eu* 0.24 0.29 0.26 0.26 0.27 0.26 0.25 0.27 0.28 0.31 La/La* 0.92 1.13 0.99 1.02 0.93 0.93 0.95 0.90 1.06 0.95 Table 2 Basic statistical parameters for stream sediment geochemical data obtained of Betare-Oya gold district Elements Min Mean Max Median GM 1 CV 2 (%) Std Dev 3 S 4 K 5 Ag 0.06 29.95 51.3 36.75 14.12 66.88 20.03 -0.48 -1.67 B 1 1.6 2 2 1.52 32.27 0.52 0.87 -2.28 Ba 36.2 43.25 56.5 42 42.86 14.59 6.31 0.26 0.95 Be 0.4 0.6 0.9 0.55 0.58 26.06 0.16 0.77 -0.03 Bi 0.3 0.371 0.45 0.37 0.37 13.77 0.05 1.3 -1.04 Co 2.6 4.2 7.3 3.75 4.02 33.22 1.40 -0.31 1.66 Cr 17 22.3 34 21.5 21.85 22.58 5.03 -1.07 2.58 Cs 0.12 0.19 0.25 0.195 0.19 22 0.04 1.98 -0.71 Cu 0.4 7.3 11.3 8,95 5.66 46.58 3.4 0.48 0.46 Hf 0.3 0.34 0.4 0.3 0.34 15.19 0.05 0.46 -2.28 Hg 40 244 560 205 178.70 73.83 180.14 -0.12 -0.80 Li 0.8 1.29 1.9 1.3 1.26 23.24 0.30 0.34 1.25 Mn 250 300.5 350 298.5 299.12 10.02 30.10 0.98 -0.19 Mo 0.03 0.11 0.21 0.09 0.10 48.84 0.06 0.49 -0.55 Nb 0.4 0.94 1.6 1 0.88 34.82 0.33 -0.5 1.23 Ni 8.1 18.91 39.4 16.05 16.80 52.35 9.90 2.14 0.46 Pb 19.6 22.15 25.3 21.85 22.10 7.42 1.64 0.95 0.42 Rb 1.1 1.93 2.6 2.05 1.87 24.43 0.47 0.96 -0.66 Re 0.001 0.002 0.002 0.0015 0.001 35.14 0.00 1.06 -2.57 Sb 0.11 0.17 0.43 0.13 0.15 61.11 0.10 -0.13 4.27 Sc 2.6 5.43 10,4 4.9 4.86 51.03 2.77 -3.16 -0.30 Sn 0.81 0.94 1.12 0.915 0.93 9.11 0.09 -0.04 1.65 Sr 6.5 10.45 15.9 10.3 10.22 22.42 2.34 1.63 3.85 Tl 0.03 0.04 0.06 0.04 0.04 25.5 0.01 0.14 0.91 U 20.8 30.06 37.7 29.6 29.59 18.45 5.55 -0.04 -0.71 V 29 34.4 48 33 34.02 16.57 5.70 1.63 3.19 Y 67.5 85.37 117 83.25 84.35 16.9 14.43 1.07 1.64 Zn 21.6 25.52 31.6 24.15 25.25 15.8 4.03 0.65 -1.41 Zr 2.3 3.91 5.6 3.85 3.82 22.67 0.89 0.14 1.08 1) Geometric mean; 2) Coefficient of variation; 3) Standard deviation; 4) Skweness; 5) kurtosis Table 3 Eigenvalues, percentage of the variance, and cumulative percentage of variance in accordance with the calculated factors Variable F1 F2 F3 F4 F5 F6 Ag 0.37 -0.80 0.35 -0.25 -0.04 0.08 B -0.01 0.11 -0.23 -0.11 0.54 -0.79 Ba 0.87 -0.02 0.19 0.07 0.39 0.08 Be -0.20 -0.18 -0.13 0.08 -0.93 -0.13 Bi -0.09 -0.13 0.92 -0.12 -0.27 0.10 Co 0.94 -0.08 0.08 -0.16 0.27 0.11 Cr 0.98 -0.07 0.06 -0.05 0.19 -0.03 Cs 0.52 0.12 -0.03 0.23 0.81 -0.07 Cu 0.53 -0.07 0.39 0.40 0.21 -0.21 Hf 0.02 0.07 0.06 0.98 -0.08 0.00 Hg -0.06 -0.92 -0.14 -0.10 -0.11 -0.02 Li 0.67 -0.04 -0.12 0.08 0.72 -0.09 Mn 0.75 0.21 0.14 0.06 0.53 -0.26 Mo 0.78 0.04 -0.10 0.23 0.49 0.16 Nb 0.58 -0.05 -0.22 0.08 0.73 -0.01 Ni 0.48 0.42 0.39 0.36 0.31 0.36 Pb -0.16 0.64 0.56 -0.04 0.26 -0.01 Rb 0.36 0.09 -0.25 0.15 0.86 -0.17 Re 0.64 0.34 0.02 0.44 0.34 0.21 Sb 0.25 0.26 0.70 0.14 0.09 0.56 Sc -0.25 -0.22 -0.14 -0.10 -0.92 0.07 Sn -0.02 0.40 0.60 0.39 0.46 0.15 Sr 0.78 -0.20 -0.18 0.07 0.54 -0.12 Tl 0.09 0.20 -0.32 -0.07 0.33 0.17 U -0.06 0.31 -0.14 0.78 0.51 0.14 V 0.95 -0.07 -0.18 -0.03 0.17 0.16 Y -0.33 -0.09 -0.31 0.49 -0.72 0.13 Zn 0.78 0.01 0.53 -0.19 -0.03 -0.20 Zr 0.57 -0.15 -0.09 0.18 0.74 -0.24 Eigenvalue 13.83 4.42 3.90 2.45 1.30 1.04 Variability (%) 30.23 9.77 11.43 9.75 26.22 5.42 Cumulative (%) 30.23 40.01 51.43 61.19 87.40 92.82 Table 4 Gold grade variation in stream sediment of Betare-Oya gold district GPS coordinates Sample Eastern Northern Weight of bulled stream sediment (kg) Gold count P2 604154 385366 10 30 P3 604528 385760 10 37 P4 604282 386025 10 15 P5 604860 385690 10 25 P8 605544 386359 10 35 P9 605068 366454 10 11 P11 604552 386277 10 33 P12 604551 386915 10 20 P14 606097 386222 10 18 P15 606549 385908 10 22 Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 12 Nov, 2024 Reviews received at journal 09 Nov, 2024 Reviewers agreed at journal 05 Nov, 2024 Reviewers agreed at journal 05 Nov, 2024 Reviews received at journal 04 Nov, 2024 Reviewers agreed at journal 02 Nov, 2024 Reviewers agreed at journal 31 Oct, 2024 Reviewers invited by journal 31 Oct, 2024 Editor assigned by journal 28 Oct, 2024 Submission checks completed at journal 26 Oct, 2024 First submitted to journal 18 Oct, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5289554","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":374440046,"identity":"69577217-52de-4afc-a5c8-264f8ea917e0","order_by":0,"name":"Ndema Mbongué Jean-Lavenir","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA5ElEQVRIie2PsQrCMBBAI4HrcugaUOovKIEq6MdYhE7XyVVEELLpLCj4C7o4C8Vs7p0tODgJgougpi46tR0F84bkDffIhTGL5QcpjVnDXF0EZ7IzImpFk8Ato+6lCRZ5KE0i6QpKheUnfDHZHOMh9xWj6zketpE50X6dudhSDyRpMMlh2yFtFsMgiDOTOXlVAvRVabqVBCYR6OUlrTs9hK84nqSRQonHQ9WQAMiTUBVKgkE1nPVcQDDtTCDk/aU572+udHtifZUkRkZuxYl0djL+OIj3mTWeUv9yfsmbtlgslv/kBVTPRLIm8Vh5AAAAAElFTkSuQmCC","orcid":"","institution":"University of Buea","correspondingAuthor":true,"prefix":"","firstName":"Ndema","middleName":"Mbongué","lastName":"Jean-Lavenir","suffix":""},{"id":374440047,"identity":"34e4ba0e-a71e-49c2-bcd4-ec91e837dcde","order_by":1,"name":"Mbua Elvis Ngomba","email":"","orcid":"","institution":"University of Buea","correspondingAuthor":false,"prefix":"","firstName":"Mbua","middleName":"Elvis","lastName":"Ngomba","suffix":""},{"id":374440048,"identity":"9d33432d-d0ce-4e9d-b0ee-579b316e3d2e","order_by":2,"name":"Emmanuel Eseya Mengu Junior","email":"","orcid":"","institution":"University of Buea","correspondingAuthor":false,"prefix":"","firstName":"Emmanuel","middleName":"Eseya Mengu","lastName":"Junior","suffix":""}],"badges":[],"createdAt":"2024-10-18 12:53:34","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5289554/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5289554/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":68351727,"identity":"6e2a64bb-1994-4325-aa57-41233445b777","added_by":"auto","created_at":"2024-11-06 10:50:22","extension":"jpeg","order_by":1,"title":"Figure 1","display":"","copyAsset":false,"role":"figure","size":710082,"visible":true,"origin":"","legend":"\u003cp\u003eGeologic map of Cameroon showing the location of the Boyo area and the main lithotectonic domains [24]. YD: Yaounde domain; AYD: Adamawa Yade domain; WCD: Western Cameroon domain; BOSZ: Bétare-Oya Shear Zone; SSZ: Sanaga Shear Zone; Pe: Permambuco Shear Zone; Pa: Patos Shear Zone TBSZ: Tibati-Banyo Shear Zone; SL: Suture Line; KF: Kandi Fault; KCSZ: Kribi-Campo Shear Zone; NT: Ntem complex; DS: Dja Series; NS: Nyong Complex\u003c/p\u003e","description":"","filename":"floatimage1.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/6556475ae21447c6d238ea8e.jpeg"},{"id":68353541,"identity":"bb928739-64be-402d-8edd-f0a80b0dac3b","added_by":"auto","created_at":"2024-11-06 11:06:15","extension":"jpeg","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":1218048,"visible":true,"origin":"","legend":"\u003cp\u003eGold occurrence. (a) Geologic map of the study area showing sampling points and gold grade; (b) heavy mineral concentrate showing a lot quantity of gold grains; (c) photomicrograph of mineral grains in stream sediment from Boyo area. Zrn = zircon, Au = gold, Mgt = magnetite\u003c/p\u003e","description":"","filename":"floatimage2.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/51e5e0a9beee9805b6506cb2.jpeg"},{"id":68351723,"identity":"4979f396-95bf-413e-9eb5-d996e929781c","added_by":"auto","created_at":"2024-11-06 10:50:19","extension":"jpeg","order_by":3,"title":"Figure 3","display":"","copyAsset":false,"role":"figure","size":988893,"visible":true,"origin":"","legend":"\u003cp\u003eGold grains recovered from stream sediments displaying various outlines and morphologies\u003c/p\u003e","description":"","filename":"floatimage3.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/86d68898f5c65ad1db3d85ed.jpeg"},{"id":68351718,"identity":"00a7a1ae-fc5a-4b9f-8c06-03fe85ec86ee","added_by":"auto","created_at":"2024-11-06 10:50:16","extension":"jpeg","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":749580,"visible":true,"origin":"","legend":"\u003cp\u003eFrequency distribution of selected trace elements\u003c/p\u003e","description":"","filename":"floatimage4.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/4e6084d15bd18c20b4086dec.jpeg"},{"id":68353012,"identity":"2e3a54ab-a832-461c-82f0-cb8bbc97830c","added_by":"auto","created_at":"2024-11-06 10:58:15","extension":"jpeg","order_by":5,"title":"Figure 5","display":"","copyAsset":false,"role":"figure","size":292491,"visible":true,"origin":"","legend":"\u003cp\u003eUpper continental crust pattern normalized rare earth elements. Normalization values are according to [44]\u003c/p\u003e","description":"","filename":"floatimage5.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/a362d9fd26695832826f65a6.jpeg"},{"id":68351711,"identity":"7725216b-0d3e-4ec3-9c8a-f76272cd44e1","added_by":"auto","created_at":"2024-11-06 10:50:15","extension":"jpeg","order_by":6,"title":"Figure 6","display":"","copyAsset":false,"role":"figure","size":1460698,"visible":true,"origin":"","legend":"\u003cp\u003ePearson's correlation matrix\u003c/p\u003e","description":"","filename":"floatimage6.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/3f29bfb94434bb4a86ae085d.jpeg"},{"id":68351715,"identity":"d59f4952-c642-44de-bd88-c15e835da3d4","added_by":"auto","created_at":"2024-11-06 10:50:15","extension":"jpeg","order_by":7,"title":"Figure 7","display":"","copyAsset":false,"role":"figure","size":737072,"visible":true,"origin":"","legend":"\u003cp\u003eSelected correlation coefficient patterns for TiO\u003csub\u003e2\u003c/sub\u003e, K\u003csub\u003e2\u003c/sub\u003eO, Ba, Ag, Au and Cu for the studied stream sediment samples\u003c/p\u003e","description":"","filename":"floatimage7.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/da71e6e6e2e26251b388b573.jpeg"},{"id":68351716,"identity":"d6f260bb-83c0-4cb6-a5b4-4748c340913d","added_by":"auto","created_at":"2024-11-06 10:50:15","extension":"jpeg","order_by":8,"title":"Figure 8","display":"","copyAsset":false,"role":"figure","size":1017777,"visible":true,"origin":"","legend":"\u003cp\u003eSpatial variability maps. (a) Gold grade variation; (b) geochemical distribution map of Bi, Pb, Sb, Sn and Zn\u003c/p\u003e","description":"","filename":"floatimage9.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/08d09eab1a9c8be8865f7e86.jpeg"},{"id":68351714,"identity":"89b48e1a-1c96-4a0f-9f78-0b0bc0acf56e","added_by":"auto","created_at":"2024-11-06 10:50:15","extension":"jpeg","order_by":9,"title":"Figure 9","display":"","copyAsset":false,"role":"figure","size":774735,"visible":true,"origin":"","legend":"\u003cp\u003eChemical composition of stream sediment of Betare-Oya gold district. (a) Discriminant function diagram of major elements [41]. The discriminant functions are: Discriminant Function 1 = -1.773\u003cem\u003eTiO\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e + 0.607\u003cem\u003eAl\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e + 0.76\u003cem\u003eFe\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e\u003cem\u003e(total) \u003c/em\u003e- 1.5\u003cem\u003eMgO\u003c/em\u003e + 0.616\u003cem\u003eCaO\u003c/em\u003e + 0.509\u003cem\u003eNa\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e - 1.224\u003cem\u003eK\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e - 9.09. Discriminant Function 2 = 0.445\u003cem\u003eTiO\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e + 0.07\u003cem\u003eAl\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e - \u003cem\u003e0.25Fe\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e\u003cem\u003e(total)\u003c/em\u003e - 1.142\u003cem\u003eMgO\u003c/em\u003e + 0.438\u003cem\u003eCaO\u003c/em\u003e + 1.475\u003cem\u003eNa\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e + 1.426\u003cem\u003eK\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e) - 6.861; (b) ICA vs. CIA plot with CIA = 100 × molar [\u003cem\u003eAl\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e/(\u003cem\u003eAl\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e + \u003cem\u003eCaO*\u003c/em\u003e + \u003cem\u003eNa\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e + \u003cem\u003eK\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e)], CaO* = molar [\u003cem\u003eCaO\u003c/em\u003e – (10/3 x \u003cem\u003eP2O5\u003c/em\u003e)] and ICV = molar [(\u003cem\u003eFe\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e + \u003cem\u003eK\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e + \u003cem\u003eNa\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e + \u003cem\u003eCaO\u003c/em\u003e + \u003cem\u003eMgO\u003c/em\u003e + \u003cem\u003eMnO\u003c/em\u003e)/\u003cem\u003eAl\u003c/em\u003e\u003csub\u003e\u003cem\u003e2\u003c/em\u003e\u003c/sub\u003e\u003cem\u003eO\u003c/em\u003e\u003csub\u003e\u003cem\u003e3\u003c/em\u003e\u003c/sub\u003e)]; (c) Yb vs. (La/La*) diagram by Alexander et al. [64] showing the chemical nature of the studied sediments. Evaluation of discrimination diagrams of tectonic settings for the stream sediment samples based upon the bivariate plots [62]; (d): Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e* + MgO – TiO\u003csub\u003e2\u003c/sub\u003e; (e): Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e* + MgO – K\u003csub\u003e2\u003c/sub\u003eO/Na\u003csub\u003e2\u003c/sub\u003eO; (f): Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e* + MgO – Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/(CaO + Na\u003csub\u003e2\u003c/sub\u003eO); Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e* represents total Fe expressed as Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/p\u003e","description":"","filename":"floatimage11.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/7d3e766079c2b4b9221a33f0.jpeg"},{"id":68355099,"identity":"aabc68d5-7cd8-4f67-a2d5-279c8a2a6b75","added_by":"auto","created_at":"2024-11-06 11:14:18","extension":"pdf","order_by":0,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":9310687,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5289554/v1/bb822680-a68b-4e17-9f63-b9c0d0761755.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Chemical characterization of heavy minerals and stream sediment of Betare-Oya gold district Neoproterozoic Fold Belt, Eastern Cameroon: implications for gold mineralization","fulltext":[{"header":"1 Introduction","content":"\u003cp\u003eGold occurs in Archean to Recent deposit types and the wide variability of their deposits is related to transport and concentration through magmatic, hydrothermal and sedimentary possesses. This precious metal occurs in low content in magmatic rocks; it is also found in hydrothermal ore vein, contact metamorphic deposit, pegmatite, minerals such as pyrite, arsenopyrite and quartz [1]. In plutonic environments the gold deposits consist of simple veins that occupy fissures, second- or third‐order structures linked to crustal discontinuities notably along shear zones in plutonic level granitic rocks and associated metamorphosed wall rock [2]. Gold is considered to have been deposited under mesothermal condition from fluids that comprise magmatic, metamorphic, and meteoric components [3]. Hydrothermal deposits (veins) associated with quartz and pyrite and placers deposits that derived from the weathering of gold- bearing rocks contain significant amounts of gold [4]. The quartz-pebble conglomerate deposits and the largest auriferous concentrations on earth are classified as modified paleo-placers closely related to lode deposits [4]. Placer or alluvial gold deposits proven from erosional processes, transportation and sedimentation of minerals from gold- bearing rocks in supergene environments.\u003c/p\u003e \u003cp\u003eMorphological features of gold evolve more rapidly than silicates in response to physical weathering. Morphological changes in gold particles can be attributed to two weathering processes: hammering, the collision of gold with other particles, and abrasion or re-working of the surface by moving particles [5]. The shape modification is attributed to the mass transport of colluvial gold; significant morphological changes in gold particles are attributed to distance of travel, or time spent in the river and the nature of the parent rocks [5]. The general characteristics of gold grain morphology is indicative of transport distance [6]. In the fluvial environment, the shape and size of placer grains reflect the history and evolution during transport [5]. Alluvial gold grain morphology, texture and chemistry have been used successfully in the determination of primary gold mineralization, the type of mineralization and the potential host rock [6\u0026ndash;8]. In regions with poor rock exposure, morphology and microchemical study of placer gold grains from the alluvial deposits have been more used to identify the original hypogene sources [9, 10]. Sediments show evidence of the erosional history and the analysis of their provenance helps to trace the tectonic setting and paleoenvironments.\u003c/p\u003e \u003cp\u003eThe East region of Cameroon is well known for its gold mineralization [8, 11\u0026ndash;19]. Primary gold deposits occur in quartz veins within the Central Cameroon Shear Zone system [12]. The Betare Oya gold district is one of several shear-related gold deposits in the East region of Cameroon, which is mine for its alluvial gold [12]. The available research works of gold deposits in the Betare-Oya gold district are mostly focused on the characterization of alluvial and lode‐gold deposits based on field, petrography and geochemical studies of placer gold and rocks [8, 11, 14, 16, 17, 20, 21]. The electrical resistivity method was used to delineating auriferous structures [13]. However, no work has been done to assess the primary source of gold and to characterize gold and heavy minerals in stream sediments of Boyo area. In this contribution, we present field investigations, mineralogy and geochemical data from the stream sediment of Boyo area. The aim of this study is to determine the primary source of gold mineralization, the mineralogy of heavy mineral concentrate, as well as provenance, intensity of weathering and tectonic setting.\u003c/p\u003e"},{"header":"2 Geologic setting","content":"\u003cdiv id=\"Sec3\" class=\"Section2\"\u003e \u003ch2\u003e2.1 Regional geology\u003c/h2\u003e \u003cp\u003eThe Boyo area (Fig.\u0026nbsp;\u003cspan refid=\"Fig1\" class=\"InternalRef\"\u003e1\u003c/span\u003e) is situated in the Adamawa-Yade domain within the Pan-African fold belt in Cameroon [22\u0026ndash;24]. This fold belt is regarded as a major Neoproterozoic orogenesis linked to the Trans-Saharan Belt in west Africa and extends in NE Brazil with the Brasiliano orogenesis [25]. The Pan-African fold belt in Cameroon also called Neoproterozoic fold belt or North-Equatorial fold belt is made up of three structural domains [24, 26]:\u003c/p\u003e \u003cp\u003e \u003c/p\u003e \u003cp\u003e(1) The Yaound\u0026eacute; domain (YD) is made up of a Neoproterozoic nappe that thrusts southward onto the Congo craton and Neoproterozoic metasedimentary units notably Ntui-Betamba, Mbalmayo-Bengbis-Ayos and Yaound\u0026eacute; Series (Fig.\u0026nbsp;\u003cspan refid=\"Fig1\" class=\"InternalRef\"\u003e1\u003c/span\u003e). The Oubanguides Nappe in the Republic of Central Africa represents the eastern extension of the above thrust. This domain includes low- to high-grade metasediments dated at 616 Ma, associated with an alkaline magmatism [26, 27], and metamorphosed under a medium- to high pressure metamorphism and granulite facies (750\u0026ndash;800\u0026deg;C and 10\u0026ndash;12 kb). The metasediments are considered as epicontinental deposits and were deposited to a passive margin or to an intracontinental distensive environment [26].\u003c/p\u003e \u003cp\u003e(2) The Adamawa\u0026ndash;Yade domain (AYD) extends east of the Tchollire\u0026ndash;Banyo shear zone (Fig.\u0026nbsp;\u003cspan refid=\"Fig1\" class=\"InternalRef\"\u003e1\u003c/span\u003e). It is characterized by major shear zones striking NE that extend to NE Brazil [25]. This domain represents a Paleoproterozoic basement that was dismembered during the Pan-African. The AYD is composed of (i) Paleoproterozoic formations such 2.1 Ga granulites that was reworked in the Pan-African time, (ii) Neoproterozoic rocks (700 Ma) formed by low- to medium- grade metasedimentary and volcano-sedimentary rocks and (iii) syn- to late-tectonic granitoids [23].\u003c/p\u003e \u003cp\u003e(3) The Western Cameroon domain (WCD) is located west of the Tchollir\u0026eacute;-Banyo shear zone and extends along the western border of Cameroon (Fig.\u0026nbsp;\u003cspan refid=\"Fig1\" class=\"InternalRef\"\u003e1\u003c/span\u003e). The WCD consists of (i) Neoproterozoic medium- to high- grade metasediments and metavolcanic rocks of tholeiitic and alkaline affinities dated at 800 Ma [28]; (ii) Pan-African pre, syn-, to late-tectonic granitoids emplaced between 660 and 580 Ma [23]; (iii) post-tectonic granitoids; (iv) unmetamorphosed sedimentary and volcanic rocks.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec4\" class=\"Section2\"\u003e \u003ch2\u003e2.2 Local geology\u003c/h2\u003e \u003cp\u003eThe Boyo area lies between longitudes 13\u0026deg; 57\u0026rsquo; \u0026minus;\u0026thinsp;13\u0026deg; 59\u0026rsquo; East and between latitude 5\u0026deg; 27\u0026rsquo; \u0026minus;\u0026thinsp;5\u0026deg; 30\u0026rsquo; North. The geology of the Boyo area is related to the Lom Basin which is a syn-depositional Neoproterozoic pull-apart basin bordered by the Sanaga Fault [29, 30]. The Sanaga Fault is a relay of the Central Cameroon Shear Zone (CCSZ) system which is a continental scale trans-current fault and potentially a deep tapping crustal fault that has focused gold-bearing fluids into structures in the Lom basin [29, 31]. The Lom basin is a Neoproterozoic rock sequence composed mainly of metasedimentary rocks, grouped into two main structural and metamorphic units: the monocyclic and polycyclic units. The monocyclic unit is made up of volcano-sedimentary rocks, gneiss, quartzite and meta-conglomerate associated with grabens [32]. The polycyclic unit consists of staurolite micaschist, gneiss, and staurolite-chloritoid mylonite, related to the horst structures [29]. Quartz veins and granitoids generally intrude both units and show evidence of sinistral deformation. These quartz veins are the product of hydrothermal fluids which originated from nearby intrusive bodies. Gold mineralization and other mineral occurrences in the Lom Basin are associated with these granitoids intrusions [30]. Late- to post‐tectonic intrusions, (some of which developed thermal aureoles in the host rocks) are also common [30]. The Lom series is well-known for its gold mineralization [33, 34]. It is characterized by intensive artisanal and semi-mechanized alluvial gold exploitation.\u003c/p\u003e \u003cp\u003eThe Boyo area is situated in the Betare-Oya gold district which lies within the Lom Basin [13, 16, 17, 31, 32, 35]. The Betare-Oya gold district consists of metatuff, volcaniclastics, sedimentary-derived schists, and staurolite-garnet micaschist intercalated with quartzite and metaconglomerate [36]. Volcaniclastic rocks are felsic to intermediate in composition. Betare-Oya gold district is underlain by a series of granitic rocks including granodiorite and tonalite that are locally cut by systems of gold‐ bearing quartz veins. Mineralization is expressed by the ubiquitous occurrence of sulphide‐ bearing quartz veins that strike between N30\u0026deg;E and N40\u0026deg;E and are gently north to south dipping. Primary gold in the Betare-Oya gold district is hosted in quartz veins that truncate metasedimentary rocks in the vicinity of small local granitoid intrusions [20]. Tectono‐metamorphic evolution of the Lom Basin is polyphase with two successive D\u003csub\u003e1\u003c/sub\u003e and D\u003csub\u003e2\u003c/sub\u003e deformations leading to an N50\u0026deg;E \u0026ndash; N70\u0026deg;E steep regional foliation [30]. Dextral or sinistral faults, locally parallel to the foliation, characterize the later stages of the structural evolution. Deformation is associated with low‐pressure regional metamorphism (garnet-staurolite-andalusite-sillimanite).\u003c/p\u003e \u003c/div\u003e"},{"header":"3 Methods of investigation","content":"\u003cp\u003eSampling sites in the study area were located using the global positioning system (GPS) and coordinates introduced into a geographic information system (GIS) platform (ArcGIS v. 10.1) to generate a map showing the spatial distribution of the sampling points in the study area. The main river call River Boyo and its tributaries were sampled and panned for gold grain recovery, a total of ten (10) samples were collected upstream along active stream beds. The sediments were sampled at water depths that vary between 1 and 1.75 m. 10 kg of sediment are collected into a measuring bucket using a spade and then weighed. The sample was then poured into an aluminum basin and panned to obtain the heavy mineral concentrate. The appropriate sediment size fraction \u0026lt; 150 \u0026micro;m is chosen for the stream sediment analysis. These concentrates were put in sample bags, coded and taken to the laboratory. They were further spread out on sheets and sun dried for four to five days.\u003c/p\u003e\n\u003cp\u003eIn the laboratory, the heavy mineral concentrates collected were subjected to a series of investigations:\u003c/p\u003e\n\u003cp\u003e(i) Magnetic separation was done to separate magnetic fraction from the non-magnetic fraction.\u003c/p\u003e\n\u003cp\u003e(ii) The magnetic fraction of the concentrates was examined in order to carry out mineral identification. This was done using the Euromex Eco Blue polarization microscope at the Geological Laboratory of the University of Buea.\u003c/p\u003e\n\u003cp\u003e(iii) Geochemical analysis was done at Activation Laboratories (ACTLABS) in Canada, for the determination of major, trace and rare earth elements concentration using inductively coupled plasma-mass spectrometry (ICP-MS) technique. Argon plasma with working temperature of 6000 \u0026ndash; 8000\u0026deg;C was generated by radio frequency excitation. 10g of prepared solution was fuse with lithium-borate, methaborate and then leached with 30% dilute nitric acid (HNO\u003csub\u003e3\u003c/sub\u003e) were injected into the plasma. The solution was excited and produced analyte ions which were separated and measured by mass spectrometry. To test for analytical precision, replicate samples chosen from the batch were randomly in each analysis, the results of replicate analyses and typical detection limits were reported by ACTLABS. The ICP-MS analytical method is used by many authors to evaluate the geochemical distribution of gold in stream [11, 37-40]. Elements displaying numerical values have been used to conduct multivariate statistical analysis such as Pearson\u0026rsquo;s correlation matrix and factor analysis. The sediment provenance is determined using the major elements discriminant function diagram in which [41]:\u003c/p\u003e\n\u003cp\u003eDiscriminant function 1 = -1.773\u003cem\u003eTiO\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e + 0.607\u003cem\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e + 0.76\u003cem\u003eFe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e(total)\u003c/em\u003e - 1.5\u003cem\u003eMgO\u003c/em\u003e + 0.616\u003cem\u003eCaO\u003c/em\u003e + 0.509\u003cem\u003eNa\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e - 1.224\u003cem\u003eK\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e - 9.09; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;(1)\u003c/p\u003e\n\u003cp\u003eDiscriminant function 2 = 0.445\u003cem\u003eTiO\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e + 0.07\u003cem\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e - 0.25\u003cem\u003eFe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e \u003cem\u003e(total)\u003c/em\u003e - 1.142\u003cem\u003eMgO\u003c/em\u003e + 0.438\u003cem\u003eCaO\u003c/em\u003e + 1.475\u003cem\u003eNa\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e + 1.426\u003cem\u003eK\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e) - 6.861. \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; (2)\u003c/p\u003e\n\u003cp\u003eThe degree of weathering and the maturity of sediment are check with the help of weathering indices such as the chemical index of alteration (CIA) by Nesbitt and Young [42] and the index of compositional variability [43]. Relation follows:\u0026nbsp;\u003c/p\u003e\n\u003cp\u003eCIA = 100 \u0026times; molar [\u003cem\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e/(\u003cem\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e + \u003cem\u003eCaO*\u003c/em\u003e + \u003cem\u003eNa\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e + \u003cem\u003eK\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e)], \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;(3)\u003c/p\u003e\n\u003cp\u003ewith CaO* = molar [\u003cem\u003eCaO\u003c/em\u003e \u0026ndash; (10/3 x \u003cem\u003eP\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e5\u003c/sub\u003e\u003c/em\u003e)]. \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;(4)\u003c/p\u003e\n\u003cp\u003eICV = molar [(\u003cem\u003eFe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e + \u003cem\u003eK\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e + \u003cem\u003eNa\u003csub\u003e2\u003c/sub\u003eO\u003c/em\u003e + \u003cem\u003eCaO\u003c/em\u003e + \u003cem\u003eMgO\u003c/em\u003e + \u003cem\u003eMnO\u003c/em\u003e)/\u003cem\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e)]. \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;(5)\u003c/p\u003e"},{"header":"4 Results","content":"\u003cp\u003e\u003cstrong\u003e4.1 Mineralogy\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe local geology map showing the sampling point and gold grade indicates that the main lithology of Boyo is made up of staurolite micaschist (Fig. 2a). Samples from the main Boyo stream and from the first and second-order tributaries were taken at appropriate locations above the confluence point. Ten (10) samples were collected and all the samples show a lot quantity of gold grains (Fig. 2b). The magnetic fraction of the heavy mineral concentrate has been submitted for petrographic investigation (Fig. 2c). The heavy minerals present in the concentrate include gold (40 - 50%), zircon (20 - 30%) and magnetite (5-10%; Fig. 2c). The gold grains range from 0.125 to 1 mm in size; the grains are generally poorly sorted, sub-angular, angular and sub-surrounded (Fig. 3). The coarse grains of gold \u0026gt; 100 \u0026micro;m are regarded to gold nuggets, they are mostly sub-angular and angular in shape (Fig. 3c, d). Some have cavities filled by impurities, probably sand and/or quartz. Zircon includes zoning and non-zoned crystals; the zoning zircon displays elongated crystal showing a dark rim and a light core. Magnetite shows sub-angular small crystals displaying dark colour that range from in 0.1 to 0.9 mm in size.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.2 Geochemistry\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.2.1 Major elements\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe major element composition presented in Table 1 shows that Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e and Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e content range from 1.08 - 2.25 wt.% (mean: 1.49 wt.%) and 0.21 to 0.73 wt.%, respectively. Na\u003csub\u003e2\u003c/sub\u003eO (0.02 \u0026ndash; 0.03%) displays constant values (Table 1), the rest of the major oxides (CaO: 0.05 \u0026ndash; 0.17 wt.%, P\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e5\u003c/sub\u003e: 0.06 \u0026ndash; 0.12 wt.%, TiO\u003csub\u003e2\u003c/sub\u003e: 0.08 \u0026ndash; 0.11 wt.%, MgO: 0.04 \u0026ndash; 0.16 wt.% and K\u003csub\u003e2\u003c/sub\u003eO: 0.03 \u0026ndash; 0.07 wt.%) exhibit depleted values. The index of chemical variability (ICV) and the chemical index of alteration (CIA) values range globally from 2.12 to 10.16 (average: 5.24) and 83.48 to 94.60% (average: 86.36%), respectively. Except samples P4, P5, P8 that show CIA values of 71.19%, 119.19% and 65.34%, respectively.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.2.2 Trace elements\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eAccording to Table 1, the concentration of gold varies from 8440 to \u0026gt; 10000 ppb. Other enriched trace elements include transition metals such as Mn (250 \u0026ndash; 350 ppm; av. = 300.5 ppm), Hg (40 \u0026ndash; 560 ppb, av.: 244 ppb), Y (67.5 - 117 ppm; av. :85.35 ppm), Ag (0.062 \u0026ndash; 51.3 ppm; av.: 29.94 ppm), Ni (8.1 \u0026ndash; 39,4 ppm; av. :18.91 ppm), and Th (186 - \u0026gt; 200 ppm). The studied samples are depleted in high field strength elements (HFSE) such as Zr (2.3 \u0026ndash; 5.6 ppm), Hf (0.3 \u0026ndash; 0.4 ppm), Nb (0.4 \u0026ndash; 1.6 ppm), Ta \u0026lt; 0.05 ppm) and enriched in large ion lithophile elements (LILE) like Sr (6.5 \u0026ndash; 15.9 ppm), Ba (36.2 \u0026ndash; 56.5 ppm), Pb (19.6 \u0026ndash; 25.3 ppm), Ce (794 \u0026ndash; 1300 ppm). Ge, As and Se contents fall below their detection limit (Table 1).\u003c/p\u003e\n\u003cp\u003eThe Table 2 presents the descriptive statistics of elements; skewness and kurtosis coefficients of data for Ag, Hg, U show negative values. Kurtosis coefficients of data for Cr (2.58), Sb (4.27), Sr (3.85) and V (3.19) are considerably higher compared to other elements. Ni (2.14), Cs (1.98) Sr (1.63), V (1.63) show slightly high skewness values relative to Bi (1.3), Y (1.07) and Re (1.06; Table 2). Skewness and mean values indicate an asymmetric data distribution pattern (Table 2). This is in accordance with the frequency distribution graphs in which trace elements show an asymmetric distribution function (Fig. 4). The standard deviation values are high for Ag (20.03), Hg (108.14), Mn (30.10), Y (14.43), Ni (9.90) compared to Ba (6.31), V (5.70), U (5.55) and Cr (5.03; Table 2). The coefficients of variation (CV) values are greater to 50% for Ag, Hg, Ni, Sb and Sc smaller than 50% for the rest of elements.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.2.3 Rare earth elements\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe total rare earth element (REE) contents range from 1684.9 to 2382.8 ppm (Table 1). The average concentration of REE is higher (2270.17 ppm) compared with the value of the Upper Continental Crust (UCC) that is 10.58 ppm [44]. Thus, REE contents in this study are about 214 times the values of the UCC. The REE patterns normalized to the UCC show light rare earth elements enrichment (La\u003csub\u003eN\u003c/sub\u003e/Sm\u003csub\u003eN\u003c/sub\u003e = 1.06 - 1.24) relative to heavy rare earth elements (Gd\u003csub\u003eN\u003c/sub\u003e/Yb\u003csub\u003eN\u003c/sub\u003e = 2.20 -9.29), with a negative Eu anomaly (Eu/Eu*= 0.24 - 0.31; Fig. 5).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.3 Multivariate statistical analysis\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.31 Pearson\u0026rsquo;s correlation coefficient factor\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe correlation coefficient value of the elements is given in Fig. 6. The strong correlation coefficient values (r = 0.70 - 0.99) are represented with the yellow colour, significant moderate correlation coefficient values (r = 0.50 - 0.69) show red colour and very strong correlation coefficient values (r = 0.80 - 0.99) are in green. Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e exhibits negative correlations with its correspondents, except with Na\u003csub\u003e2\u003c/sub\u003eO (r = 0.87). The values of Ag increase with the values of Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e (r = 0.59) and P\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e5\u003c/sub\u003e (r = 0.67), while the concentration of Bi decreases with the values of Nb (r = -0.50) and Rb (r = -0.56; Fig. 6). The majority of other element pairs together exhibit positive correlation.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e4.32 Factor analysis\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe eigenvalue, the percentage of the variance and the cumulative percentage have been determined in accordance with the factors. The highest eigenvalue which is 13.83 is related to the first component with variability percentage of 30.23% (Table 3). The varimax rotation method is applied to the coefficient factors; six element associations represented by factors 1 to factor 6 accounting for 29.94 of the eigenvalues and cumulatively accounting for 92.82% of the total data variance were identified according to Table 3. The factor 1 (F1) contains Ba, Co, Cr, Cs, Cu, Li, Mn, Mo, Nb, Re, Sr, V, Zn, Zr and accounts for 30.23% while the factor 2 (F2) is form only with Pb with a variability percentage of 26.22% (Table 3). The factor 3 (F3) and the factor 4 (F4) includes Bi, Pb, Sb, Sn, Zn accounting for 11.43% and Hf, U, Y represents 9.77% of total variance, respectively. In fine, the factor 5 (F5) displays an association of B, Cs, Li, Mn, Mo, Nb, Rb, Sr, U, Zr that contributes for 9.75% and the factor 6 (F6) is made only with Sb representing 5.42%.\u003c/p\u003e"},{"header":"5 Discussion","content":"\u003cp\u003e\u003cstrong\u003e5.1 Gold grains variation in stream sediments\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eStream sediments represent materials weathered from parent rock transported downstream and therefore, the mineral content of stream sediments depends on the primary mineral of the rock, the degree of weathering and the dispersion mechanism [45, 46]. The gold grade variation in the study area ranges from 15 to 37 and could be overestimated due to the presence of nugget golds [40, 47, 48]. The transport of gold in fluvial environment depends of the grain size, and the shape. The recovered gold grains range from 0.125 to 1 mm in size (Fig. 3). This fraction of particle size corresponds to fine and coarse sand. The gold grains show various degrees of hammering, abrasion and transportation distance. They display various outlines and morphologies confirming evolution in a fluvial environment similar to those described in Otago in New Zealand and in Southern Cordillera in Chile [5, 6]. Based on the morphological characterization of gold grains [6], the Boyo alluvial gold grains are proximal to the source. Indeed, they appear oblong with angular and sub-angular edges (Fig. 3). They experienced little attrition and deformation in the fluvial system and are uniformly distributed; this contrasts the result of Embui et al. [49]. There is no significant variation between the Au concentrations obtained from panning and geochemical exploration. The concentration of Au in stream sediments is usually very low (\u0026lt; 1 ppb) or below the detection limit [38, 50]. This study however, shows Au enrichment from 8440 to \u0026gt; 10000 ppb (Table 1).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e5.2 Provenance\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe correlation analysis (Fig. 6) mostly revealed positive correlation; the correlation coefficients of selected elements are plotted in Fig. 7. The similarity in the patterns for TiO\u003csub\u003e2\u003c/sub\u003e, Ag, Cu and Bi (Fig. 7) implies some geochemical coherence and suggests similar input sources and common geochemical characteristics of the elements. The factor analysis is made up of six factors in which the factor 1 (F1) is mostly loaded with lithophiles and transitional metals: Ba, Co, Cr, Cs, Cu, Li, Mn, Mo, Nb, Re, Sr, V, Zn, Zr. The trace element content of this factor points to the presence of granitic rocks and suggest a lithologic control. These elements are probably produced by the weathering of the basement rock. The variability of the elements in the factor 1 indicates they have been controlled by the mixed rock types. Zr presents in this factor may be explained by the presence of zircon, confirming the aforementioned result. The factor 3 (F3) which is associated with chalcophiles such as Bi, Pb, Sb, Sn, Zn could be interpreted as the mineralization factor barren with respect to Au and the elements Bi, Pb, Sb, Sn, Zn may be regarded as potential pathfinders for Au. This type of association is attributed to the hydrothermal alteration of wall rock [49]. The presence of these elements in the same factor suggests that gold may be associated with sulphide minerals. Therefore, we suggest that the sulphidation event could be the dominant mechanism of gold ore deposition. The factor 5 (F5) also includes lithophiles and transition elements (B, Cs, Li, Mn, Mo, Nb, Rb, Sr, U, Zr) suggesting the presence of granitic rocks and lithologic control. Artisanal gold exploration has been carried out in Boyo area and the on-going artisanal gold mining supports the placer gold mineralization [40]. The evidence of placer gold mineralization is also supported by the presence of free gold grains in the panning and weighing method. The stream sediment show enrichment in REEs (1684.9 \u0026ndash; 2382.8 ppm, av. = 2270.17 ppm) notably LREEs (53 \u0026ndash; 1300 ppm, av. = 433.62 ppm), this could be due to the presence of REE-\u0026nbsp;bearing phase. The negative Eu anomaly could be due to the presence of feldspar (plagioclase). The parallelism of the patterns suggests that the REE have similar bulk distribution coefficients during subsequent differentiation [51].\u003c/p\u003e\n\u003cp\u003eThe distribution of Au in the study area is regular (Table 4), the River Boyo and tributaries show a lot quantity of gold in the pan concentrate (Fig. 8a). The geochemical distribution maps for elements of factor 3 (Bi, Pb, Sb, Sn, Zn) are generated (Fig. 8b-f). The concentrations of these elements exhibit considerable variation in space distribution, Zn and Pb have the highest concentrations and show a geographic trend (Fig. 8c, f). The spatial distribution of Bi, Sb and Sn is sporadic with no clear pattern along the drainage system (Fig. 8b, d, c). The coefficient of variation (CV) value ranges from 7.42 \u0026ndash; 73.83 (average = 29.75; Table 2), consistent with a spatially homogeneous distribution of element concentrations [52]. Also, the standard deviation (Std Dev) values \u0026le; 30.10%; Table 2) suggest a spatially homogeneous distribution. Only Hg shows Std Dev of 180.14% reflecting a non-homogenous surface distribution and a high variability of this elements. Low positive skewness and low negative kurtosis coefficients indicate that individual elements are weakly right-skewed and slightly light-tailed distributed, respectively. This result is confirmed with the selected histogram plots in which the raw data analysis shows an asymmetric distribution (Fig. 4).\u0026nbsp;The Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/TiO\u003csub\u003e2\u003c/sub\u003e ratio are usually used to determine the provenance of sediments.\u0026nbsp;Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/TiO\u003csub\u003e2\u003c/sub\u003e ratio of 21 \u0026ndash; 70 refers to felsic igneous rock provenance, from 8 \u0026ndash; 21 indicates intermediate igneous rocks and Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/TiO\u003csub\u003e2\u003c/sub\u003e ratio of 3 - 8 denotes mafic igneous rocks provenance [53]. The stream sediments of Boyo have Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/TiO\u003csub\u003e2\u003c/sub\u003e ratio of 3.08 \u0026ndash; 6.70 (Table 1), consistent with intermediate igneous source.\u0026nbsp;In addition,\u0026nbsp;the discriminant function diagram by Roser and Korsch [41] is used to assess the sediment provenance. In this diagram, Boyo sediments plot in the field of intermediate igneous provenance (Fig. 9a). Therefore, the sediments and the placer gold deposit of Boyo originated from intermediate igneous rock.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e5.3 Intensity of weathering, sources of contamination and tectonic setting\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe chemical index of alteration (CIA) and the index of compositional variability (ICV) values are applied to determine the maturity of sediments and the degree of weathering of rocks in the source area. High ICV values \u0026gt; 1 denote immature sediments while lower ICV values \u0026lt; 1 reflect mature sediments [43]. The Boyo samples show ICV range of 2.12 to 10.16 (average: 5.24) suggesting the sediments have a high degree of compositional immaturity (Fig. 9b). This indicates that the elements were relatively immobile during alteration [54, 55]. In addition, sediments display poorly sorted angular and sub-angular grains indicating they have been deposited close to the source rock and have not been transported very far. Regarding CIA index, CIA value comprises between 35 to 55% indicates weak weathering of the source area, 60 \u0026lt; CIA \u0026lt; 80 infers to moderate weathering and CIA \u0026gt; 80% suggests high or intense weathering [56, 57]. The majority of samples of Boyo show CIA value in the range of 83.48 to 94.60% (average: 86.36%) consistent with sediments of intense weathering (Fig. 9b). Meanwhile samples P4 (CIA = 71.19%) and P5 CIA (65.34%) are compatible with moderate weathering, while sample P8 (CIA = 119.19%) fall away (Fig. 9b). Considering all this, we suggest that the Boyo sediments have a high degree of compositional immaturity, transported in a short distance and have undergone intense weathering of the source area.\u003c/p\u003e\n\u003cp\u003eLa and Yb are used to assess the source of contamination and detritus. The Boyo sediments display La and Yb contents in the range of 383 to 630 (average: 516.6) and 3 to 10.6 (average: 5.39), all in ppm, respectively (Table 1). The detrital fraction of the studied sediments is constrained by La/La* versus Yb discrimination diagram [58]. The graphical representation shows that sediments plot onto the field of detritus (Fig. 9c) suggesting a detritus-free mineralization. This result is also supported by Ni (81 - 39.4 ppm), V (29 \u0026ndash; 48 ppm) and Sc (2.6 \u0026ndash; 10.4 ppm) contents suggesting clastic and detritus inputs [59]. Meanwhile, low concentrations of Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e (0.21 - 0.73 wt.%), TiO\u003csub\u003e2\u003c/sub\u003e (0.08 - 0.11 wt.%), Na\u003csub\u003e2\u003c/sub\u003eO (0.02 - 0.03 wt.%), K\u003csub\u003e2\u003c/sub\u003eO (0.03 - 0.07 wt.%) and the correlation between Na\u003csub\u003e2\u003c/sub\u003eO and K\u003csub\u003e2\u003c/sub\u003eO (r = -0.54) suggest little sources of contamination. Furthermore, the Boyo stream sediments display La content of 383 \u0026ndash; 1300 ppm reflecting felsic input. Thus, we suggest that the source of detrital contamination in the Boyo area could be result from granitic sources 60]. Generally, sediment geochemistry is related to specific tectonic environment [61-63]. The discrimination diagrams of tectonic settings are used to evaluate the tectonic setting [61, 62]. In these diagrams (Fig. 9d to 9f), the Boyo sediments cluster near the field of passive margin (PM) setting, consistent with rift environments.\u003c/p\u003e"},{"header":"Conclusion","content":"\u003cp\u003eThe purpose of this study was to\u0026nbsp;determine the primary source of gold mineralization, the mineralogy of heavy mineral concentrate, as well as provenance, intensity of weathering and tectonic setting. The findings show that:\u003c/p\u003e\n\u003col\u003e\n \u003cli\u003eThe minerals present in the heavy mineral concentrate include gold, zircon and magnetite. The gold grade ranges from 15 to 37 and could be overestimated due to the presence of nugget golds. They vary from 0.125 to 1 mm in size and exhibit sub-angular and angular shape indicating they are proximal to the source.\u003c/li\u003e\n \u003cli\u003eThe sediments show enrichment in Au, Mn, Hg, Th, Y, LILE and REE depleted values in Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e, Nb, Mo and LILE. The Upper Continental Crust normalized REE patterns show LREE enrichment relative to HREE and a negative Eu anomaly.\u003c/li\u003e\n \u003cli\u003eAu could be linked to sulphide minerals and the sulphidation event may be the dominant mechanism of gold ore deposition. The association Bi-Pb-Sb-Sn-Zn are interpreted as the mineralization factor and the elements Bi, Pb, Sb, Sn, Zn are regarded as potential pathfinders for Au.\u003c/li\u003e\n \u003cli\u003eThe alluvial sediments were sourced intermediate igneous provenance, the detrital fraction and the source of contamination resulted from granitic sources. Sediments were immature, poorly sorted, undergone intense weathering, transported in a short distance and were deposited in a passive margin consistent with rift environments.\u003c/li\u003e\n\u003c/ol\u003e"},{"header":"Declarations","content":"\u003ch2\u003eConflicts of interest/Competing interests\u003c/h2\u003e \u003cp\u003eThe authors have no competing interests to declare that are relevant to the content of this article.\u003c/p\u003e \u003c/p\u003e\u003ch2\u003eFunding\u003c/h2\u003e \u003cp\u003eNo funding was received for conducting this study.\u003c/p\u003e\u003ch2\u003eAuthor Contribution\u003c/h2\u003e\u003cp\u003eN.M. J.L. and M.E.N. wrote the main manuscript text and E.E.M J. prepared figures 1-3. All authors reviewed the manuscript.\u003c/p\u003e\u003ch2\u003eAcknowledgements\u003c/h2\u003e \u003cp\u003eThis paper is the result of the second author Master thesis research work at the University of Buea. We gratefully acknowledge the editors for the handling of the manuscript.\u003c/p\u003e\u003ch2\u003eData availability\u003c/h2\u003e \u003cp\u003eData sets generated during the current study are available from the corresponding author on reasonable request.\u003c/p\u003e\u003ch2\u003eCode availability\u003c/h2\u003e \u003cp\u003eNot applicable\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\n\u003cli\u003eKorbel P, Novak M. The complete encyclopedia of minerals. Grange Book PLC: United Kingdom; 2001.\u003c/li\u003e\n\u003cli\u003eMorrison GW, Rose WJ, Jaireth S. Geological and geochemical controls on the silver content (fineness) of gold in gold-silver deposits. Ore Geol Rev. 1991; 6:333\u0026ndash;364. https://doi.org/10.1016/0169-1368(91)90009-V\u003c/li\u003e\n\u003cli\u003eNesbitt FB, Muehlenbachs K. Geology, geochemistry, and genesis of mesothermal lode gold deposits of the Canadian Cordillera: Evidence for ore formation from evolved meteoric water. 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Bilong JP, editors G\u0026eacute;ologie et Environnement au Cameroun: Collection Geocam I, 1998. pp. 255 \u0026ndash;264.\u003c/li\u003e\n\u003cli\u003eToteu SF, Van Schmus WR, Penaye J, Michard A. New U-Pb and Sm-Nd data from North-Central Cameroon and its bearing on the pre-pan African history of Central Africa. Prec Res.\u003cem\u003e \u003c/em\u003e2001 ;108:45-73.\u003c/li\u003e\n\u003cli\u003eToteu SF, Penaye J, Poudjom DY. Geodynamic evolution of the Pan-African belt in Central Africa with special reference to Cameroon. Can J Earth Sci. 2004;41:73-85.\u003c/li\u003e\n\u003cli\u003eC. Castaing JL, Feybesse D, Thi\u0026eacute;blemont et al. Palaeogeographical reconstructions of the Pan-African/Brasiliano orogen: closure of an oceanic domain or intracontinental convergence between major blocks? Prec Res. 1994;69:327-344. https://doi.org/10.1016/0301-9268(94)90095-7\u003c/li\u003e\n\u003cli\u003eNzenti JP, Barbey P, Macaudiere J, Soba D. Origin and evolution of the late Precambrian high grade Yaound\u0026eacute; gneisses (Cameroon). Prec Res\u003cem\u003e.\u003c/em\u003e 1988;38:91-109.\u003c/li\u003e\n\u003cli\u003eNgnotue T, Nzenti JP, Barbey P, Tchoua FM. The Ntui Betamba high grade gneisses: a northward extension of the Pan-African Yaound\u0026eacute; gneisses in Cameroon. J. Afri Earth Sci 2000;3(1):369\u0026ndash;381.\u003c/li\u003e\n\u003cli\u003eToteu SF, Macaudiere J, Bertrand JM, Dautel D. Metamorphic zircon s from northern Cameroon: implications for the Pan-African evolution of central Africa. Geol Rundsch. 1990;79:777-786.\u003c/li\u003e\n\u003cli\u003eNgako V, Affaton P, Nnange JM, Njanko T. Pan-African tectonic evolution in the central and south Cameroon: transpressive and transtension during sinistral shear movements. J Afri Earth Sci. 2003 ;36:107\u0026ndash;214. https://doi.org/10.1016/S0899 5362(03)00023-X\u003c/li\u003e\n\u003cli\u003eToteu SF, Penaye J, Deloule E, Van Schmus WR, Tchameni R. Diachronous evolution of volcano-sedimentary basins north of the Congo craton: insights from UPb ion microprobe dating of zircons from the Poli, Lom and Yaounde Groups (Cameroon). J Afri Earth Sci. 2006;44:428\u0026ndash;442. https://doi.org/10.1016/j\u003c/li\u003e\n\u003cli\u003eKankeu B, Greiling RO, Nzenti JP, Bassahak J, Hell JV. Strain partitioning along the Neoproterozoic Central Africa shear zone system: structures and magnetic fabrics (AMS) from the Meiganga area, Cameroon. Neues Jahrb Geol Paleaont Abh. 2012;265:27-47.\u003c/li\u003e\n\u003cli\u003eSoba D. La s\u0026eacute;rie du Lom: etude g\u0026eacute;ologique et g\u0026eacute;ochronologique d\u0026rsquo;un bassin volcanos\u0026eacute;dimentaire de la cha\u0026icirc;ne panafricaine \u0026agrave; l\u0026rsquo;Est Cameroun. Th\u0026egrave;se de Doctorat d\u0026rsquo;Etat; Universit\u0026eacute; de Paris VI, Paris; 1989.\u003c/li\u003e\n\u003cli\u003eNgatcha RB, Okunlola OA, Suh CE et al. Petrochemical characterization of Neoproterozoic Colomine granitoids, SE Cameroon: implications for gold mineralization. Lithos. 2019;344\u0026ndash;345, 175\u0026ndash;192.\u003c/li\u003e\n\u003cli\u003eTakodjou WJD, Pour AB, Ganno S et al. Identifying high potential zones of gold mineralization in a sub-tropical region using Landsat-8 and ASTER remote sensing data: a case study of the Ngoura-Colomines goldfield, eastern Cameroon. Ore Geol Rev\u003cem\u003e.\u003c/em\u003e 2020; https://doi.org/10.1016/j.oregeorev.2020.103530\u003c/li\u003e\n\u003cli\u003eAzeuda KIN., Xie YL, Zhong RC, Yomeun BS, Cui K, Shan XY. Tectonic evolution of Neoproterozoic rocks of eastern Cameroon: implication for gold mineralization in the B\u0026eacute;tar\u0026eacute; Oya and Woumbou\u0026ndash;Colomine\u0026ndash;Kette gold districts,\u0026rdquo; Prec Res. 2022b; https://doi.org/10.1016/j.precamres.2021.106475\u003c/li\u003e\n\u003cli\u003eSoba D, Michard A, Toteu SF, Norman DI, Penaye J. Donn\u0026eacute;es g\u0026eacute;ochronologiques nouvelles (Rb-Sr, U-Pb et Sm-Nd) sur la zone mobile panafricaine de l\u0026rsquo;Est du Cameroun: \u0026acirc;ge prot\u0026eacute;rozo\u0026iuml;que sup\u0026eacute;rieur de la s\u0026eacute;rie de Lom. Comptes rendus de l\u0026rsquo;Acad\u0026eacute;mie des sciences S\u0026eacute;rie 2, M\u0026eacute;canique, Physique, Chimie, Sciences de l\u0026rsquo;Univers. Sci Terre 1991;312(12):1453\u0026ndash;1458.\u003c/li\u003e\n\u003cli\u003eSoh TL, Ganno S, Kouankap NGD, Ngnotue T, Kankeu B, Nzenti JP. Stream Sediment Geochemical Survey of Gouap-Nkollo Prospect, Southern Cameroon: Implications for Gold and LREE Exploration. Am J Mining Metal. 2014;2(1):8-16.\u003c/li\u003e\n\u003cli\u003eMimba ME, Tamnta NM, Suh CE. Geochemical dispersion of gold in stream sediments in the paleoproterozoic Nyong series, southern Cameroon. Sci Res. 2014;2:155\u0026ndash;165.\u003c/li\u003e\n\u003cli\u003eNforba MT, Egbenchung KA, Berinyuy NL, Mimba ME, Tangko ET, Kouankap NGD. Statistical evaluation of stream sediment geochemical data from Tchangue-Bikoui drainage system, Southern Cameroon: a regional perspective. Geol Ecol Landscapes. 2020 ;1-13.\u003c/li\u003e\n\u003cli\u003eNdema MJL, Mukete CD, Djomo MC, Peter N. Characterization of heavy minerals and stream sediment from Bidjouka area, Nyong Complex south Cameroon: implications for gold mineralization,\u0026rdquo; Ore Energy Res Geol. 2024; https://doi.org/10.1016/j.oreoa.2024.100039\u003c/li\u003e\n\u003cli\u003eRoser BP, Korsch RJ. Provenance signatures of sandstones-mudstone suites determine using discrimination function analysis of major-element data. Chem Geol\u003cem\u003e.\u003c/em\u003e 1988;67:119-139.\u003c/li\u003e\n\u003cli\u003eNesbitt HW, Young GM. Early Proterozoic climates and plate motions inferred from major elements of lutites,\u0026rdquo; Nature. 1982 ;\u003cstrong\u003e299 \u003c/strong\u003e:715\u0026ndash;717.\u003c/li\u003e\n\u003cli\u003eCox R, Lowe DR, Cullers RL. The influence of sediment recycling and basement composition on evolution of mudrock chemistry in the southwestern United States. Geochem Cosmochim Acta. 1995;59(14): 2919\u0026ndash;2940.\u003c/li\u003e\n\u003cli\u003eRudnick RL, Gao S. Composition of the continental crust. Treatise on geochemistry. 2003;3:1-64.\u003c/li\u003e\n\u003cli\u003eAli K, Cheng Q, Li W, Chen Y. Multi-element analysis of stream sediment geochemistry data for predicting gold deposits in South-Central Yunnan Province, China. Geochem Expl Environ Analysis. 2006 ;6:341-348.\u003c/li\u003e\n\u003cli\u003eMcClenaghan MB, Cabri LJ. Review of gold and platinum group elements. Environ. Analysis. 2011;11:251-263.\u003c/li\u003e\n\u003cli\u003eButt CRM, Hough RM, Verrall M. Gold nuggets: the inside story. Ore Energy Res Geol. 2020;4\u0026ndash;5. 100009https://doi.org/10.1016/j.oreoa.2020.100009\u003c/li\u003e\n\u003cli\u003eNomo NE, Takodjou WJD, Yamgouot NF, Negou JN, Teda SAC, Tsass\u0026eacute; NAS, Fossi DH, Tchameni R. Searching gold origin through litho-structural analysis and morphological characterization of alluvial gold nuggets in the Guiwa-Yangamo area (Batouri goldfield, Eastern Cameroon). Arab J Geosci. 2021; https://doi.org/10.1007/s12517-021-07799-5\u003c/li\u003e\n\u003cli\u003eEmbui VF, Omang BO, Che VB, Nforba MT, Suh EC. Gold grade variation and stream sediment geochemistry of the Vaimba-Lidi drainage system, northern Cameroon,\u0026rdquo; Natural Sci\u003cem\u003e.\u003c/em\u003e 2013;5(2A):282-290.\u003c/li\u003e\n\u003cli\u003eGarret RG, Lalor GC, Vutchkov M. Geochemical exploration for gold in Jamaica: a composition of stream sediment and soil surveys. Geochem Expl Environ Analysis. 2004;4:161-170.\u003c/li\u003e\n\u003cli\u003eDavidson J, Turner S, Plank T. Dy/Dy* Variations Arising from Mantle Sources and Petrogenetic Processes. J. Petrol.\u003cem\u003e \u003c/em\u003e2013;54(3):525-537. doi:10.1093/petrology/egs076\u003c/li\u003e\n\u003cli\u003eKaranlik S, Aqca N, Yalcin M. Spatial distribution of heavy metals content in soils of Amik plain (Hatay, Turkey). Environ Monitoring Assessment. 2011;173:181\u0026ndash;191.\u003c/li\u003e\n\u003cli\u003eHayashi K, Fujisawa H, Holland HD, Ohomoto H. Geochemistry of \u0026sim;1.9 Ga sedimentary rocks from northeastern Labrador, Canada. Geochem Cosmochim Acta. 1997;61:4115\u0026ndash;4137.\u003c/li\u003e\n\u003cli\u003eLesher CM, Burnham OM, Keays RR. Trace-element geochemistry and petrogenesis of barren and ore-associated komatiites. Can Mineral 2001;39:673\u0026ndash;696.\u003c/li\u003e\n\u003cli\u003ePolat A, Hofmann AW. Alteration and geochemical patterns in the 3.7-3.8 Ga Isua greenstone belt, West Greenland. Prec Res. 2003;126:197\u0026ndash;218.\u003c/li\u003e\n\u003cli\u003eNesbitt HW, Young GM. Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic consideration. Geochim Cosmochim Acta. 1984 ;48 :1523\u0026ndash;1534. https://doi.org/10.1016/0016-7037(84)90408-3\u003c/li\u003e\n\u003cli\u003eFedo CM, Nesbitt HW, Young GM. Unraveling the effects of potassium metasomatism in sedimentary rocks and paleosoils, with implications for paleoweathering conditions and provenance. Geol. 1995;23:921\u0026ndash;924.\u003c/li\u003e\n\u003cli\u003eJahn BM, Condie KC. Evolution of the Kaapvaal Craton as viewed from geochemical and Sm-Nd isotopic analyses of intracratonic pelites,\u0026rdquo; Geochim. Cosmochim. Acta. \u003cstrong\u003e59\u003c/strong\u003e, 2239\u0026ndash;2258 (1995). https://doi.org/10.1016/ 0016-7037(95)00103-7\u003c/li\u003e\n\u003cli\u003eYang X, Liu L, Lee I, Wang B, Du Z, Wang Q, Wang Y. Sun W. A review on the Huoqiu banded iron formation (BIF), southeast margin of the North China Craton: genesis of iron deposits and implications for exploration,\u0026rdquo; Ore Geol Rev. 2014;63:418\u0026ndash;443. https://doi.org/10.1016/j. Ore Geol. Rev. 04.002\u003c/li\u003e\n\u003cli\u003eBhatia MR, Crook KA. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins. Contrib Mineral Petrol. 1986;92(2):181\u0026ndash;193.\u003c/li\u003e\n\u003cli\u003eRoser BP, Korsch RJ. Determination of tectonic setting of sandstone\u0026ndash;mudstone suites using SiO\u003csub\u003e2\u003c/sub\u003e content and K\u003csub\u003e2\u003c/sub\u003eO/Na\u003csub\u003e2\u003c/sub\u003eO ratio. J Geol.\u003cem\u003e \u003c/em\u003e1986;94:635\u0026ndash;650.\u003c/li\u003e\n\u003cli\u003eBhatia M. R. Plate tectonic and geochemical composition of sandstones. J Geol. 1983;91:611-627.\u003c/li\u003e\n\u003cli\u003eBhatia MR, Crook KA. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins,\u0026rdquo; Contrib Mineral Petrol. 1986;92(2):181\u0026ndash;193.\u003c/li\u003e\n\u003cli\u003eAlexander BW, Bau M, Andersson P, Dulski P. Continentally-derived solutes in shallow Archean Sea water; rare earth element and Nd isotope evidence in iron formation from the 2.9 Ga Pongola Supergroup, South Africa. Geochim Cosmochim Acta. 2008;72 :378-394.\u003c/li\u003e\n\u003c/ol\u003e"},{"header":"Tables","content":"\u003cp\u003e\u003cstrong\u003eTable 1\u003c/strong\u003e Chemical composition of stream sediment samples from Betare-Oya gold district\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eSamples\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003eP2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003eP3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003eP4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003eP5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003eP8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003eP9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003eP11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003eP12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003eP14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003eP15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eTiO\u003csub\u003e2\u003c/sub\u003e (%)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eP\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e5\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eNa\u003csub\u003e2\u003c/sub\u003eO\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eMgO\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.41\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.28\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.73\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eK\u003csub\u003e2\u003c/sub\u003eO\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCaO\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eFe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1.69\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1.83\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1.52\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e1.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e2.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1.19\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eAl\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e/TiO\u003csub\u003e2\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e3.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e3.30\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e4.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e3.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e4.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e6.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e2.50\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e3.77\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 132px;\"\u003e\n \u003cp\u003eCIA\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e86.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e94.60\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e71.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e119.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e65.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e83.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e83.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e84.80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e87.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e83.48\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 132px;\"\u003e\n \u003cp\u003eICV\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.79\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e5.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.74\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e5.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e5.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 66px;\"\u003e\n \u003cp\u003e5.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e2.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 78px;\"\u003e\n \u003cp\u003e10.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 72px;\"\u003e\n \u003cp\u003e4.81\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eAg (ppm)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e32.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e40.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e8.47\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e46.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e4.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.062\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e48.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e51.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e47.7\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eAs\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eAu (ppb)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e8440\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026gt; 10000\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eBa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e50.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e45.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e42.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e41.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e43.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e37.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e40.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e56.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e36.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e38.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eBe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eBi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.44\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.41\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCd\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e5.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e5.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e3.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e4.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e4.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e3.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e7.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e20\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCs\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eCu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e8.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e9.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e10.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e11.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e6.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e3.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e5.7\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eGa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.73\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e1.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eGe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eHf\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"3\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 66px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 78px;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" style=\"width: 72px;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 135px;\"\u003e\n \u003cp\u003eHg (ppb)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 67px;\"\u003e\n \u003cp\u003e80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e140\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 69px;\"\u003e\n \u003cp\u003e230\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 75px;\"\u003e\n \u003cp\u003e180\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 79px;\"\u003e\n \u003cp\u003e60\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 68px;\"\u003e\n \u003cp\u003e480\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 65px;\"\u003e\n \u003cp\u003e370\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 67px;\"\u003e\n \u003cp\u003e300\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e560\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 28px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 135px;\"\u003e\n \u003cp\u003eIn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 67px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 69px;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 75px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 79px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 68px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 65px;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 67px;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"2\" valign=\"bottom\" style=\"width: 71px;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 28px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\n\u003cdiv align=\"center\"\u003e\n \u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"836\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eLi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e1.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e1.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e1.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e1.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e1.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e1.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eMn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e322\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e302\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e295\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e311\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e331\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e293\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e288\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e350\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e250\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e263\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eMo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eNb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e1.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e1.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e1.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.7\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eNi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e39.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e27.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e26.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e12.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e19.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e12.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e11.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e21.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e9.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e8.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003ePb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e25.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e21.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e21.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e23.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e22.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e23.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e21.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e20.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e21.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e19.6\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eRb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e2.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e1.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e2.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e2.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e2.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e1.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e1.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eRe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eSb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.28\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eSc\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e3.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e5.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e4.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e6.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e3.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e5.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e3.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e9.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e10.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eSe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eSn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e1.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.97\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.91\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e1.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e0.88\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.96\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.88\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.81\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eSr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e10.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e10.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e10.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e9.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e11.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e9.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e10.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e15.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e6.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e9.7\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eTa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eTe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e\u0026lt; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eTh\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e186\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026gt; 200\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eTl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eU\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e35.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e27.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e37.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e20.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e37.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e30.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e30.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e27.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e24.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e28.8\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eV\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e37\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e48\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e34\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eW\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e0.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e0.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e0.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e\u0026lt; 0.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eY\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e80.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e93.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e76.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e86.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e85.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e69.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e67.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e96.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e117\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eZn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e29.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e26.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e21.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e31.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e25.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e22.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e21.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e31.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e22.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e23.2\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.1098%;\"\u003e\n \u003cp\u003eZr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e4.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e3.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e4.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.23389%;\"\u003e\n \u003cp\u003e3.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.94988%;\"\u003e\n \u003cp\u003e4.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42721%;\"\u003e\n \u003cp\u003e3.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.11456%;\"\u003e\n \u003cp\u003e4.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.75656%;\"\u003e\n \u003cp\u003e5.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.99523%;\"\u003e\n \u003cp\u003e2.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.47255%;\"\u003e\n \u003cp\u003e3.3\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n \u003c/table\u003e\n\u003c/div\u003e\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" align=\"\" width=\"100%\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eLa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e576\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e470\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e630\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e383\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e614\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e513\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e545\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e496\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e416\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e523\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eCe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1200\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e973\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1300\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e794\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e1280\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e1070\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e1140\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e1050\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e883\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1090\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003ePr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e125\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e95.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e133\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e134\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e111\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e116\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e109\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e86.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e113\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eNd\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e439\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e364\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e481\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e293\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e478\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e394\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e412\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e382\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e321\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e406\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eSm\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e82\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e57.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e78.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e76.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e67\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e72.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e64.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e56.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e66.9\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eEu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e3.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e3.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e4.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e2.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e4.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e3.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e3.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e3.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e4.2\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eGd\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e56\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e46.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e60.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e37.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e58.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e49.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e53.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e47.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e39.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e50.3\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eTb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e6.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e5.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e6.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e4.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e6.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e5.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e5.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e5.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e4.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e5.9\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eDy\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e25.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e21.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e27.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e19.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e26.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e24.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e22.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e21.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e22.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e28.2\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eHo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e3.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e3.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e3.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e2.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e3.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e2.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e2.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e3.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e4.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eEr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e6.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e7.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e7.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e7.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e7.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e5.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e9.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e11.6\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eTm\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e0.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.6\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eYb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e3.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e5.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e4.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e6.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e5.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e2.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e8.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e10.6\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eLu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e0.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.4\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003e\u0026sum;REE\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e2527.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e2054.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e2739\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e1684.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e2692.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e2255.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e2382.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e2191.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1857.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e2317.1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003e(La/Sm)\u003csub\u003eN\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e1.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e1.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e1.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e1.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e1.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.19\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003e(La/Yb)\u003csub\u003eN\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e11.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e5.61\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e8.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e3.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e11.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e6.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e12.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e10.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e2.96\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e3.12\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003e(Gd/Yb)\u003csub\u003eN\u003c/sub\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e8.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e4.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e6.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e2.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e8.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e4.46\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e9.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e7.79\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e2.20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e2.33\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eEu/Eu*\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e0.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e0.27\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e0.27\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e0.28\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.31\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 16.129%;\"\u003e\n \u003cp\u003eLa/La*\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e0.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e1.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.99\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.31265%;\"\u003e\n \u003cp\u003e1.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.933%;\"\u003e\n \u003cp\u003e0.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.42928%;\"\u003e\n \u003cp\u003e0.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.18859%;\"\u003e\n \u003cp\u003e0.95\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.81638%;\"\u003e\n \u003cp\u003e0.90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.94045%;\"\u003e\n \u003cp\u003e1.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.43672%;\"\u003e\n \u003cp\u003e0.95\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 2\u003c/strong\u003e Basic statistical parameters for stream sediment geochemical data obtained of Betare-Oya gold district\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"639\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eElements\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003eMin\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003eMean\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003eMax\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003eMedian\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 10.1721%;\"\u003e\n \u003cp\u003eGM\u003csup\u003e1\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 11.4241%;\"\u003e\n \u003cp\u003eCV\u003csup\u003e2\u003c/sup\u003e (%)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 12.2066%;\"\u003e\n \u003cp\u003eStd Dev\u003csup\u003e3\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003eS\u003csup\u003e4\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003eK\u003csup\u003e5\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eAg\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e29.95\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e51.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e36.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e14.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e66.88\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e20.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.48\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-1.67\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e1.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e1.52\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e32.27\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.52\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.87\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-2.28\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eBa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e36.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e43.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e56.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e42.86\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e14.59\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e6.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.95\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eBe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.55\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e26.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eBi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.371\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.37\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.37\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e13.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-1.04\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eCo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e4.2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e7.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e3.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e4.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e33.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e1.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.66\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eCr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e22.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e21.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e21.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e22.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e5.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-1.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e2.58\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eCs\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.195\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.71\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eCu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e7.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e11.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e8,95\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e5.66\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e46.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e3.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.48\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.46\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eHf\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e15.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.46\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-2.28\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eHg\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e244\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e560\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e205\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e178.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e73.83\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e180.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.80\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eLi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e1.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e1.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e1.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e23.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.30\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.25\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eMn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e250\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e300.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e350\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e298.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e299.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e10.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e30.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eMo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e48.84\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.49\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.55\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eNb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.88\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e34.82\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.23\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eNi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e8.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e18.91\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e39.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e16.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e16.80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e52.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e9.90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e2.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.46\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003ePb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e19.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e22.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e25.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e21.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e22.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e7.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e1.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.95\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.42\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eRb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e1.1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e1.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e2.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e1.87\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e24.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.47\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.96\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.66\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eRe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.002\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.0015\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e35.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-2.57\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eSb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e61.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e4.27\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eSc\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e2.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e5.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e10,4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e4.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e4.86\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e51.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e2.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-3.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.30\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eSn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.915\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e9.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.65\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eSr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e6.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e10.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e15.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e10.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e10.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e22.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e2.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.63\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e3.85\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eTl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e25.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e0.91\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eU\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e20.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e30.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e37.7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e29.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e29.59\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e18.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e5.55\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-0.71\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eV\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e34.4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e48\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e34.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e16.57\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e5.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.63\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e3.19\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eY\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e67.5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e85.37\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e117\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e83.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e84.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e16.9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e14.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e1.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.64\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eZn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e21.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e25.52\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e31.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e24.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e25.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e15.8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e4.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.65\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e-1.41\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.1455%;\"\u003e\n \u003cp\u003eZr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 9.23318%;\"\u003e\n \u003cp\u003e2.3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.4507%;\"\u003e\n \u003cp\u003e3.91\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e5.6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.4851%;\"\u003e\n \u003cp\u003e3.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 10.1721%;\"\u003e\n \u003cp\u003e3.82\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.4241%;\"\u003e\n \u003cp\u003e22.67\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 12.2066%;\"\u003e\n \u003cp\u003e0.89\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 7.66823%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 8.6072%;\"\u003e\n \u003cp\u003e1.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003csup\u003e1)\u003c/sup\u003e Geometric mean; \u003csup\u003e2)\u003c/sup\u003e Coefficient of variation; \u003csup\u003e3)\u003c/sup\u003e Standard deviation; \u003csup\u003e4)\u003c/sup\u003e Skweness; \u003csup\u003e5)\u003c/sup\u003e kurtosis\u003csup\u003e\u0026nbsp;\u003c/sup\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 3\u003c/strong\u003e Eigenvalues, percentage of the variance, and cumulative percentage of variance in accordance with the calculated factors\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"469\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003e\u0026nbsp;Variable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003eF1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003eF2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003eF3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003eF4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003eF5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003eF6\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eAg\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.37\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.54\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.79\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eBa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.87\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eBe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eBi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.27\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eCo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.27\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eCr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eCs\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.52\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eCu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eHf\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eHg\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eLi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.67\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.72\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eMn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eMo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.49\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eNb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.73\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eNi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.48\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003ePb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.56\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eRb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.86\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eRe\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.44\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.34\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.21\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eSb\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.56\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eSc\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eSn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.60\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.46\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eSr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.54\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eTl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eU\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.51\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eV\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.95\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eY\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e-0.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.49\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.72\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eZn\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.20\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eZr\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e0.57\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e0.74\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e-0.24\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eEigenvalue\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e13.83\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e4.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e3.90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e2.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e1.30\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e1.04\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eVariability (%)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e30.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e9.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e11.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e9.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e26.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e5.42\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 25.5864%;\"\u003e\n \u003cp\u003eCumulative (%)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 6.18337%;\"\u003e\n \u003cp\u003e30.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e40.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e51.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e61.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e87.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.6461%;\"\u003e\n \u003cp\u003e92.82\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 4\u003c/strong\u003e Gold grade variation in stream sediment of Betare-Oya gold district\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"606\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003eGPS coordinates\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eSample\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003eEastern\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003eNorthern\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003eWeight of bulled stream sediment (kg)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003eGold count\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e604154\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e385366\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e30\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP3\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e604528\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e385760\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e37\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP4\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e604282\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e386025\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e604860\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e385690\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e25\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e605544\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e386359\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e35\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e605068\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n 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\u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e18\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"bottom\" style=\"width: 11.3674%;\"\u003e\n \u003cp\u003eP15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 20.2636%;\"\u003e\n \u003cp\u003e606549\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 13.0148%;\"\u003e\n \u003cp\u003e385908\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 40.5272%;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"bottom\" style=\"width: 14.827%;\"\u003e\n \u003cp\u003e22\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"discover-chemistry","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Chemistry](https://link.springer.com/journal/44371)","snPcode":"44371","submissionUrl":"https://submission.nature.com/new-submission/44371/3","title":"Discover Chemistry","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Stream sediment, proximal, sulphidation, intermediate igneous rocks, immature, intense weathering","lastPublishedDoi":"10.21203/rs.3.rs-5289554/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5289554/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eStream sediment geochemical survey was carried out in Boyo situated in the Betare-Oya gold district. The study was aim to determine the primary source of gold, mineralogy of heavy mineral concentrate, provenance, weathering conditions and tectonic setting. Samples were collected by panning and analyzed using inductively couple plasma mass spectrometry method. Heavy minerals present in concentrates include gold, zircon, magnetite. The gold grade ranges from 15\u0026ndash;37 and could be overestimated due to the presence of nuggets. Gold grains vary in size from 0.125-1 mm and exhibit sub-angular and angular shape indicating they were proximal to the source. Sediments shown enrichment in Au (8440- \u0026gt;10000 ppb), Mn (250\u0026ndash;350 ppm), Hg (40\u0026ndash;560 ppm), Th (186- \u0026gt;200 ppm), Y (67.5\u0026ndash;117 ppm), large ion lithophile elements, rare earth element (REE: 1684.9-2382.6 ppm) and depletion in Fe\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e (1.08\u0026ndash;2.25 wt.%), Nb (0.4\u0026ndash;1.6 ppm), Mo (0.03\u0026ndash;0.21 ppm), high field strength elements. REE patterns show LREE enrichment (La\u003csub\u003eN\u003c/sub\u003e/Sm\u003csub\u003eN\u003c/sub\u003e = 1.06\u0026ndash;1.24) relative to HREE (Gd\u003csub\u003eN\u003c/sub\u003e/Yb\u003csub\u003eN\u003c/sub\u003e = 2.20\u0026ndash;9.29) and negative Eu anomaly (Eu/Eu* = 0.24\u0026ndash;0.31). Au may be linked to sulphide minerals and the sulphidation could be the dominant mechanism of gold ore deposition. The association Bi-Pb-Sb-Sn-Zn are interpreted as mineralization factor and Bi, Pb, Sb, Sn, Zn are regarded as pathfinders for Au. The sediments were sourced intermediate igneous provenance, the detrital fraction and the source of contamination resulted from granitic sources. Sediments were immature, undergone intense weathering, transported in a short distance and were deposited in a passive margin consistent with rift environments.\u003c/p\u003e","manuscriptTitle":"Chemical characterization of heavy minerals and stream sediment of Betare-Oya gold district Neoproterozoic Fold Belt, Eastern Cameroon: implications for gold mineralization","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-11-06 10:50:10","doi":"10.21203/rs.3.rs-5289554/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-11-12T17:26:10+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-10T00:27:50+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"250382994835224003523485370049292917784","date":"2024-11-05T14:59:22+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"81419087985464591975749612298090071983","date":"2024-11-05T08:34:12+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-05T03:06:02+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"147232866578286823071196211020463922755","date":"2024-11-02T08:42:02+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"228543180838354212579903763062916254273","date":"2024-10-31T08:15:39+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-10-31T07:08:44+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-10-29T03:22:38+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-10-26T11:55:17+00:00","index":"","fulltext":""},{"type":"submitted","content":"Discover Chemistry","date":"2024-10-18T12:40:18+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"discover-chemistry","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Chemistry](https://link.springer.com/journal/44371)","snPcode":"44371","submissionUrl":"https://submission.nature.com/new-submission/44371/3","title":"Discover Chemistry","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"717d9d9d-1c0a-4689-9eae-44cc325db53c","owner":[],"postedDate":"November 6th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2025-04-03T06:23:40+00:00","versionOfRecord":[],"versionCreatedAt":"2024-11-06 10:50:10","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5289554","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5289554","identity":"rs-5289554","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}