Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)

G. V. Nesterenko; S. M. Zhmodik; E. V. Airiyants; D. K. Belyanin; V. V. Kolpakov; A. A. Bogush

doi:10.1016/j.oregeorev.2017.10.003

Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)

G. V. Nesterenko, S. M. Zhmodik, E. V. Airiyants, D. K. Belyanin, V. V. Kolpakov, A. A. Bogush

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A microinclusion of colloform high-purity platinum in a grain of platinum-group minerals (PGM) from the alluvial gold-bearing placer deposit in the south of Western Siberia (Russia) was detected and characterized for the first time. It is different in composition, texture, and conditions of formation from high-purity platinum of other regions described in the literature. The main characteristics of investigated high-purity platinum are colloform-layered texture, admixture of Fe (0.37–0.78 wt%), and paragenesis of Cu-rich isoferroplatinum, hongshiite, and rhodarsenide. The PGM grain with high-purity platinum is multiphase and heterogeneous in texture. It is a product of intensive metasomatic transformation of Cu-rich isoferroplatinum (Pt₃(Fe_0.6Cu_0.4)). The transformation was carried out in two stages: 1 – copper stage including three substages (Cu-rich isoferroplatinum, copper platinum and hongshiite); and 2 – arsenic (rhodarsenide). The formation of high-purity platinum was separated in time from the formation of isoferroplatinum and was carried out by precipitation from postmagmatic solutions.

Original language	English
Pages (from-to)	236-245
Number of pages	10
Journal	Ore Geology Reviews
Volume	91
Early online date	12 Oct 2017
DOIs	https://doi.org/10.1016/j.oregeorev.2017.10.003
Publication status	Published - 1 Dec 2017
Externally published	Yes

Funding

The authors gratefully acknowledge the valuable assistance of Ludviga Boboshko for help in the paper preparation; Dr. Nikolay Karmanov and Michael Khlestov for support with SEM/EDS analysis; Dr. Vladimir Korolyuk for his help with microprobe analysis. Special thanks are due to Professor Franco Pirajno, Dr. Alexander Yakubchuk, and anonymous reviewer for comments, questions and careful and helpful review. This work was supported financially by the Russian Foundation for Basic Research (Grant 15-05-06950).

Keywords

Alluvial placer
Cu-rich isoferroplatinum
Gornaya Shoriya
High-purity platinum
Hongshiite
Platinum-group elements (PGE)
Platinum-group minerals (PGM)

ASJC Scopus subject areas

Geology
Geochemistry and Petrology
Economic Geology

Access to Document

10.1016/j.oregeorev.2017.10.003

https://discovery.ucl.ac.uk/id/eprint/10059823/

Cite this

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title = "Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)",

abstract = "A microinclusion of colloform high-purity platinum in a grain of platinum-group minerals (PGM) from the alluvial gold-bearing placer deposit in the south of Western Siberia (Russia) was detected and characterized for the first time. It is different in composition, texture, and conditions of formation from high-purity platinum of other regions described in the literature. The main characteristics of investigated high-purity platinum are colloform-layered texture, admixture of Fe (0.37–0.78 wt\%), and paragenesis of Cu-rich isoferroplatinum, hongshiite, and rhodarsenide. The PGM grain with high-purity platinum is multiphase and heterogeneous in texture. It is a product of intensive metasomatic transformation of Cu-rich isoferroplatinum (Pt3(Fe0.6Cu0.4)). The transformation was carried out in two stages: 1 – copper stage including three substages (Cu-rich isoferroplatinum, copper platinum and hongshiite); and 2 – arsenic (rhodarsenide). The formation of high-purity platinum was separated in time from the formation of isoferroplatinum and was carried out by precipitation from postmagmatic solutions.",

keywords = "Alluvial placer, Cu-rich isoferroplatinum, Gornaya Shoriya, High-purity platinum, Hongshiite, Platinum-group elements (PGE), Platinum-group minerals (PGM)",

author = "Nesterenko, \{G. V.\} and Zhmodik, \{S. M.\} and Airiyants, \{E. V.\} and Belyanin, \{D. K.\} and Kolpakov, \{V. V.\} and Bogush, \{A. A.\}",

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doi = "10.1016/j.oregeorev.2017.10.003",

language = "English",

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journal = "Ore Geology Reviews",

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TY - JOUR

T1 - Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)

AU - Nesterenko, G. V.

AU - Zhmodik, S. M.

AU - Airiyants, E. V.

AU - Belyanin, D. K.

AU - Kolpakov, V. V.

AU - Bogush, A. A.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - A microinclusion of colloform high-purity platinum in a grain of platinum-group minerals (PGM) from the alluvial gold-bearing placer deposit in the south of Western Siberia (Russia) was detected and characterized for the first time. It is different in composition, texture, and conditions of formation from high-purity platinum of other regions described in the literature. The main characteristics of investigated high-purity platinum are colloform-layered texture, admixture of Fe (0.37–0.78 wt%), and paragenesis of Cu-rich isoferroplatinum, hongshiite, and rhodarsenide. The PGM grain with high-purity platinum is multiphase and heterogeneous in texture. It is a product of intensive metasomatic transformation of Cu-rich isoferroplatinum (Pt3(Fe0.6Cu0.4)). The transformation was carried out in two stages: 1 – copper stage including three substages (Cu-rich isoferroplatinum, copper platinum and hongshiite); and 2 – arsenic (rhodarsenide). The formation of high-purity platinum was separated in time from the formation of isoferroplatinum and was carried out by precipitation from postmagmatic solutions.

AB - A microinclusion of colloform high-purity platinum in a grain of platinum-group minerals (PGM) from the alluvial gold-bearing placer deposit in the south of Western Siberia (Russia) was detected and characterized for the first time. It is different in composition, texture, and conditions of formation from high-purity platinum of other regions described in the literature. The main characteristics of investigated high-purity platinum are colloform-layered texture, admixture of Fe (0.37–0.78 wt%), and paragenesis of Cu-rich isoferroplatinum, hongshiite, and rhodarsenide. The PGM grain with high-purity platinum is multiphase and heterogeneous in texture. It is a product of intensive metasomatic transformation of Cu-rich isoferroplatinum (Pt3(Fe0.6Cu0.4)). The transformation was carried out in two stages: 1 – copper stage including three substages (Cu-rich isoferroplatinum, copper platinum and hongshiite); and 2 – arsenic (rhodarsenide). The formation of high-purity platinum was separated in time from the formation of isoferroplatinum and was carried out by precipitation from postmagmatic solutions.

KW - Alluvial placer

KW - Cu-rich isoferroplatinum

KW - Gornaya Shoriya

KW - High-purity platinum

KW - Hongshiite

KW - Platinum-group elements (PGE)

KW - Platinum-group minerals (PGM)

UR - https://www.scopus.com/pages/publications/85031429543

U2 - 10.1016/j.oregeorev.2017.10.003

DO - 10.1016/j.oregeorev.2017.10.003

M3 - Article

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SN - 0169-1368

VL - 91

SP - 236

EP - 245

JO - Ore Geology Reviews

JF - Ore Geology Reviews

ER -

Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)

Abstract

Funding

Keywords

ASJC Scopus subject areas

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Anna Bogush

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Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Profiles

Anna Bogush

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