ASSOCIATIONS OF PLATINUM-GROUP MINERALS FROM THE ZOLOTAYA GOLD PLACER, PRIMORYE, RUSSIAN FAR EAST
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dc.contributor.author | Shcheka G.G. | |
dc.contributor.author | Vrzhosek A.A. | |
dc.contributor.author | Lehmann B. | |
dc.contributor.author | Tolstykh N.D. | |
dc.date.accessioned | 2022-11-03T10:21:07Z | |
dc.date.available | 2022-11-03T10:21:07Z | |
dc.date.issued | 2004 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=13450820 | |
dc.identifier.citation | The Canadian Mineralogist, 2004, 42, 2, 583-599 | |
dc.identifier.issn | 0008-4476 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/39360 | |
dc.description.abstract | The platinum-group minerals (PGM) and chromite composition of the Zolotaya River gold placer, in the Russian Far East, indicate a genetic relationship to poorly exposed Late Permian dunite - hornblendite - gabbro intrusions of Uralian-Alaskan type. Ninety percent of the PGM grains studied consist of Pt-Fe alloy, typically with a rhodium content in the 1-2 wt.% range. 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 erlichmanite-laurite series are relatively rare. Their composition varies from pure laurite through Os-bearing laurite to erlichmanite. Cooperite occurs in multiphase inclusions (in association with cuprorhodsite and chalcopyrite) in Pt-Fe alloy, and as a secondary rim (occasionally intergrown with platarsite and sperrylite) around Pt-Fe grains. Heterogeneous aggregates of Pt-Fe and Ru-Pt-Ir alloy have inclusions of arsenides of rhodium, iridium and ruthenium (cherepanovite, iridarsenite, ruthenarsenite) and a sulfarsenide-rich rim (irarsite). | |
dc.subject | Pt–Fe alloy | |
dc.subject | platinum-group minerals | |
dc.subject | Uralian–Alaskan-type complex | |
dc.subject | gold-bearing placers | |
dc.subject | platinum-group elements | |
dc.subject | Primorye | |
dc.subject | Russia | |
dc.title | ASSOCIATIONS OF PLATINUM-GROUP MINERALS FROM THE ZOLOTAYA GOLD PLACER, PRIMORYE, RUSSIAN FAR EAST | |
dc.type | Статья |
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