Associations of platinum-group minerals from the Zolotaya gold placer, Primorye, Russian Far East

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doi: 10.2113/gscanmin.42.2.583
Authors:Shcheka, Galina G.; Vrzhosek, Alexandr A.; Lehmann, Bernd; Tolstykh, Nadezhda D.
Author Affiliations:Primary:
Technical University of Clausthal, Institute of Mineralogy and Mineral Resources, Clausthal, Federal Republic of Germany
University of Houston, United States
McGill University, Canada
Volume Title:Platinum-group elements; petrology, geochemistry, mineralogy
Volume Authors:Mungall, James E., editor; Meurer, William E.; Martin, Robert F.
Source:The Canadian Mineralogist, Vol.42(Part 2), p.583-599; 9th international platinum symposium, Billings, MT, July 25-29, 2002, edited by James E. Mungall, William E. Meurer and Robert F. Martin. Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada. ISSN: 0008-4476
Publication Date:2004
Note:In English. 43 refs.; illus., incl. 7 tables, sketch map
Summary:The PGM and chromite compositions of the Zolotaya River gold placer indicate a genetic relationship to poorly exposed late Permian dunite-hornblendite-gabbro intrusions of Uralian-Alaskan type; 90 % of the PGM grains studied consist of Pr-Fe alloys, typically with Rh 1-2 wt %. Pt-bearing Os-Ir-Ru alloy occurs in three variants: 1) heterogeneous grains with an exsolution texture, 2) intergrowths of Os-Ir alloy with Pt-Fe alloy and 3) homogeneous grains. Minerals of the laurite-erlichmanite series are relatively rare; their composition varies from pure laurite through Os-bearing laurite to erlichmanite. Cooperite occurs in multiphase inclusions in Pt-Fe alloy and as a secondary rim around Pt-Fe grains. Heterogeneous aggregates of Pt-Fe and Ru-Pt-Ir alloy have inclusions of arsenides of Rh, Ir and Ru and a sulpharsenide-rich rim (irarsite). [R.A.H.]
Sections:Economic minerals and ore deposits
Subsections:Metallic deposits: specific
Subjects:Alloys; Dunite; Gabbros; Gold ores; Heavy mineral deposits; Hornblendite; Igneous rocks; Iron; Laurite; Metal ores; Metals; Mineral assemblages; Paleozoic; Peridotites; Permian; Placers; Platinum; Platinum group; Platinum minerals; Plutonic rocks; Sulfides; Ultramafics; Upper Permian; Asia; Commonwealth of Independent States; Primorye Russian Federation; Russian Far East; Russian Federation; Alaskan-type intrusions; Erlichmanite; Zolotaya River
Coordinates:N430000 N480000 E1360000 E1300000
Abstract Numbers:04M/2900
Record ID:2007049937
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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