WITHDRAWN: Geophysical and Remote Sensing Approaches for Delineating Mineralization-Controlling Structures in Umm Rus, Eastern Desert, Egypt

doi:10.21203/rs.3.rs-6212907/v1

WITHDRAWN: Geophysical and Remote Sensing Approaches for Delineating Mineralization-Controlling Structures in Umm Rus, Eastern Desert, Egypt

2025 · doi:10.21203/rs.3.rs-6212907/v1

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Abstract

Abstract The gold-bearing quartz veins hosted by the Umm Rus intrusion have been exploited intermittently since ancient Egyptian times until the beginning of the 20th century. However, the relationship between regional structures and gold mineralization is not fully understood. In the Umm Rus area of Egypt's Eastern Desert, known for its orogenic gold deposits, the geophysical characteristics of the underlying geological formations associated with these and other potential resources are largely unknown. This research shows how well magnetic and PRISMA hyperspectral data may be integrated to find structural characteristics linked to gold mineralization in the Umm Rus area of Egypt. Given the frequent lack of other geophysical data in the region, aeromagnetic lineaments often provide the best means of identifying the critical permeable fault zones that facilitate the ascent of auriferous sub-crustal fluids into the crust. Here, PRISMA hyperspectral data was applied for the first time over the study area to enhance the lithological discrimination of the rock units and highlighting the main structural trends. Furthermore, Both surface and subsurface geophysical anomalies related to gold mineralization and alteration zones were characterized using aeromagnetic data with reasonable resolution using versatile filters include; the analytic signal (AS), first-order vertical derivative (FVD), horizontal gradient magnitude (HGM), directional horizontal gradient (DHG), tilt derivative (TDR), theta map (TM), upward continuation (UC), Butterworth high and low pass filters, both the Center for Exploration Targeting's (CET) porphyry and grid analyses, source parameter imagining (SPI), and 3D Euler deconvolution (3D Eul) techniques were among the edge-detection methods we used to strengthen and interpret the aeromagnetic data. By using these techniques, we were able to identify the primary structural lineaments and contacts that regulate the distribution of zones of hydrothermal alteration. The aeromagnetic data indicate that the Umm Rus region is covered by the N-S, NNE-SSW, NW-SE, NE-SW, and minor E-W structures ranging in depth from under 72 meters to over 943 meters and these trends confirm and concordant with the previous studies and have same trends of gold bearing quartz veins and dykes. Additionally, the depth of the basement is determined using the analytical signal solutions (Anasig) model using Pdepth tool in Oasis Montaj 8.4. and it is observed as 891 m. Significant lineament density may be a sign of significant mineralization potential since such lineaments might consist of faults and fractures that serve as the primary channels for the migration of hydrothermal solutions. Delineated alteration zones with significant mineralization potential were identified in four sites. As a result, we were able to identify gold mineralization hotspots in our research, demonstrating the importance of aeromagnetic and remote sensing for mineral prospecting. The aeromagnetic approach approved here its role in detection of various rocks through their magnetic signatures and its relation to mineralization.

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Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author. Editorial notes are used to provide important context regarding the topic of a preprint or to alert readers to potential issues concerning that preprint or a downstream publication associated with it. For more information on editorial notes, see our Editorial Policies . Abstract The full text of this preprint has been withdrawn by the authors while they make corrections to the work. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author. Earth and environmental sciences/Planetary science Earth and environmental sciences/Solid earth sciences Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 2 posted You are reading this latest preprint version Show more versions 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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