TY - JOUR

T1 - Platinum Group Minerals from Veresovka River Deluvial Placer, Veresovoborsky Dunite–Clinopyroxenite Massif (Middle Urals)

AU - Stepanov, S. Yu

AU - Palamarchuk, R. S.

AU - Varlamov, D. A.

AU - Kozlov, A. V.

AU - Khanin, D. A.

AU - Antonov, A. V.

N1 - Funding Information: The study was supported by the Russian Foundation for Basic Research (project no. 18-35-00151-19). Publisher Copyright: © 2019, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Abstract: For the first time data on platinum group minerals (PGM) from the deluvial placer of the Veresovka River are given; their root source are dunites of the northern part of the Veresovoborsky massif. Among minerals typical of this type of placers, Pt–Fe minerals, Os–Ir–(Ru) intermetallic compounds, kashinite, bowieite, laurite, erlichmanite, and Ir–Rh thiospinels have been identified. Irarsite, hollingworthite, zvyagintsevite, potarite, cooperite, ferhodsite, and some unnamed Pb–Те minerals were also revealed, which rare for platinum placers associated with zonal clinopyroxenite–dunite massifs, but are widely distributed in the studied placer. Xingzhongite was detected there for the first time in placers of the Ural Platinum Belt. The morphological features of all these minerals are characterized in detail, together with their chemical composition, determined by electron microprobe analysis. Their genetic relationships are characterized taking into account the aggregate data obtained. This comprehensive study of PGM individuals and aggregates is used as a basis to distinguish the parageneses in their association.

AB - Abstract: For the first time data on platinum group minerals (PGM) from the deluvial placer of the Veresovka River are given; their root source are dunites of the northern part of the Veresovoborsky massif. Among minerals typical of this type of placers, Pt–Fe minerals, Os–Ir–(Ru) intermetallic compounds, kashinite, bowieite, laurite, erlichmanite, and Ir–Rh thiospinels have been identified. Irarsite, hollingworthite, zvyagintsevite, potarite, cooperite, ferhodsite, and some unnamed Pb–Те minerals were also revealed, which rare for platinum placers associated with zonal clinopyroxenite–dunite massifs, but are widely distributed in the studied placer. Xingzhongite was detected there for the first time in placers of the Ural Platinum Belt. The morphological features of all these minerals are characterized in detail, together with their chemical composition, determined by electron microprobe analysis. Their genetic relationships are characterized taking into account the aggregate data obtained. This comprehensive study of PGM individuals and aggregates is used as a basis to distinguish the parageneses in their association.

KW - erlichmanite

KW - iridium

KW - isoferroplatinum

KW - kashinite

KW - mineral parageneses

KW - osmium

KW - platinum placers

KW - potarite

KW - Pt–Fe minerals

KW - tetraferroplatinum

KW - Ural Platinum Belt

KW - Veresovoborsky massif

KW - xingzhongite

KW - zvyagintsevite

UR - http://www.scopus.com/inward/record.url?scp=85079166943&partnerID=8YFLogxK

U2 - 10.1134/S1075701519080117

DO - 10.1134/S1075701519080117

M3 - Article

AN - SCOPUS:85079166943

VL - 61

SP - 767

EP - 781

JO - Geology of Ore Deposits

JF - Geology of Ore Deposits

SN - 1075-7015

IS - 8

ER -