Инд. авторы:	Nesterenko G.V., Zhmodik S.M., Airiyants E.V., Belyanin D.K., Kolpakov V.V., Bogush A.A.
Заглавие:	Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia)
Библ. ссылка:	Nesterenko G.V., Zhmodik S.M., Airiyants E.V., Belyanin D.K., Kolpakov V.V., Bogush A.A. Colloform high-purity platinum from the placer deposit of Koura River (Gornaya Shoriya, Russia) // Ore Geology Reviews. - 2017. - Vol.91. - P.236-245. - ISSN 0169-1368.
Идентиф-ры:	DOI: 10.1016/j.oregeorev.2017.10.003; РИНЦ: 31081035; WoS: 000418978300012;
Реферат:	eng: 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 (Pt-3(Fe0.6Cu0.4)). The transformation was carried out in two stages: 1 - copper stage including three substages (Cu-rich iso-ferroplatinum, 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.
Ключевые слова:	Platinum-group minerals (PGM); High-purity platinum; Cu-rich isoferroplatinum; Hongshiite; Alluvial placer; Gornaya Shoriya; GROUP MINERALS; MINAS-GERAIS; GROUP ELEMENTS; TRANSPORT; SOLUBILITY; RICH; PALLADIUM; BRAZIL; MINERALIZATION; FAR-EAST; Platinum-group elements (PGE);
Издано:	2017
Физ. хар-ка:	с.236-245