Mineralogy, petrogenesis, and SIMS SHRIMP U-Pb age PGE-Cu-Ni deposit of the “Ore Horizon 330” of the Sopcha intrusion from the Paleoproterozoic layered Monchegorsk pluton, Kola Region, Russia

Mineralogy, petrogenesis, and SIMS SHRIMP U-Pb age PGE-Cu-Ni deposit of the “Ore Horizon 330” of the Sopcha intrusion from the Paleoproterozoic layered Monchegorsk pluton, Kola Region, Russia | 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 Mineralogy, petrogenesis, and SIMS SHRIMP U-Pb age PGE-Cu-Ni deposit of the “Ore Horizon 330” of the Sopcha intrusion from the Paleoproterozoic layered Monchegorsk pluton, Kola Region, Russia Victor Chashchin This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4754687/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 05 Mar, 2025 Read the published version in Mineralogy and Petrology → Version 1 posted 4 You are reading this latest preprint version Abstract The results of a comprehensive research of the Ore Horizon 330 (OH330) deposit, which is located within the orthopyroxenite of the Sopcha intrusion of the layered Monchegorsk pluton (Monchepluton) in the Kola Region (Russia), are presented. The OH330 is a sill-like body 3300 m long, 1200 m wide, and 4–6 m thick. On its western flank, a regular alternation (from bottom to top) of interlayers of dunite, harzburgite and orthopyroxenite is observed. In term chemical compositions, olivine (Fo87–84) and orthopyroxene (En84–83) in the OH330 rocks have a similar compared to the Monchepluton rocks, differing only in lower Ni contents. The geochemical features of the OH330 rocks were defined by fractional crystallization and crustal contamination of the parental magma. The light rare earth elements (LREE) fractioning is typical of all OH330 rocks, with the (Ce/Sm)N values of 1.21 ppm in dunite, 1.69 ppm in harzburgite, and 1.81 ppm in orthopyroxenite. The trace element distribution in dunite and harzburgite is characterized by U, Ta, and Sr positive anomalies, whereas orthopyroxenite exhibits Nb and Ta negative anomalies. The following PT crystallization parameters were determined: liquidus temperature 1600–1470 °C, sodidus temperature 1290–1120 °C, and pressure 3.5 kbar. The SIMS SHRIMP U-Pb magmatic zircon age of the OH330 orthopyroxenite is 2492.5 ± 4.1 Ma, indicating that the OH330 is younger than the marginal zone rocks of the Monchepluton ultramafic subchamber. A concordant U-Pb age of 2818.0 ± 3.1 Ma was obtained for the xenocryst zircon population, which corresponds to the age of the Archean granitoid basement rocks. OH330 Mineralogy Geochemistry SIMS SHRIMP U-Pb age Sopcha intrusion Monchepluton Kola Region Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 05 Mar, 2025 Read the published version in Mineralogy and Petrology → Version 1 posted Editorial decision: Revision requested 02 Aug, 2024 Editor assigned by journal 18 Jul, 2024 Submission checks completed at journal 17 Jul, 2024 First submitted to journal 17 Jul, 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-4754687","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":335301899,"identity":"742c3c8f-a3de-44c2-9115-471d674c0bf9","order_by":0,"name":"Victor Chashchin","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAw0lEQVRIiWNgGAWjYHACNiA+wGDAzMD4sIFULcyGJGoBMiSJ0mJwgPnZgx9/7sibs/Meq5zxx47BfEYCIS1s5oa9bc8Mdzbzpd3c2JbMIHODgBbJBh42Cd6GwwkGh3nMbj5sOMAgIUGEFsk/fyBaCh/8IUILPwMPmzQPG0QL4wY2YrQws5lJy7YdNtxwmMdYcmZbMo8EzwP8WtjYm59JvvlzWN7g/BnDjz1/7OQk2AnYwsCMxuchoH4UjIJRMApGATEAAEZMPXWqSnJOAAAAAElFTkSuQmCC","orcid":"","institution":"Kola Science Centre","correspondingAuthor":true,"prefix":"","firstName":"Victor","middleName":"","lastName":"Chashchin","suffix":""}],"badges":[],"createdAt":"2024-07-17 08:24:37","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4754687/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4754687/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s00710-025-00886-5","type":"published","date":"2025-03-05T15:58:48+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":78192012,"identity":"428e98cf-3e74-4d10-9702-6fd133dcff25","added_by":"auto","created_at":"2025-03-10 20:18:09","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3477821,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4754687/v1_covered_fe5918e1-fadb-4541-b3e5-19fcc3407652.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Mineralogy, petrogenesis, and SIMS SHRIMP U-Pb age PGE-Cu-Ni deposit of the “Ore Horizon 330” of the Sopcha intrusion from the Paleoproterozoic layered Monchegorsk pluton, Kola Region, Russia","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"mineralogy-and-petrology","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"mipe","sideBox":"Learn more about [Mineralogy and Petrology](http://link.springer.com/journal/710)","snPcode":"710","submissionUrl":"https://submission.nature.com/new-submission/710/3","title":"Mineralogy and Petrology","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"OH330, Mineralogy, Geochemistry, SIMS SHRIMP U-Pb age, Sopcha intrusion, Monchepluton, Kola Region","lastPublishedDoi":"10.21203/rs.3.rs-4754687/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4754687/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The results of a comprehensive research of the Ore Horizon 330 (OH330) deposit, which is located within the orthopyroxenite of the Sopcha intrusion of the layered Monchegorsk pluton (Monchepluton) in the Kola Region (Russia), are presented. 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