| Инд. авторы: | Tolstykh N.D., Sidorov E., Kozlov A. |
| Заглавие: | Platinum-group minerals from the Olkhovaya-1 placers related to the Karaginsky ophiolite complex, Kamchatskiy Mys peninsula, Russia |
| Библ. ссылка: | Tolstykh N.D., Sidorov E., Kozlov A. Platinum-group minerals from the Olkhovaya-1 placers related to the Karaginsky ophiolite complex, Kamchatskiy Mys peninsula, Russia // Canadian Mineralogist. - 2009. - Vol.47. - Iss. 5. - P.1057-1074. - ISSN 0008-4476. - EISSN 1499-1276. |
| Внешние системы: | DOI: 10.3749/canmin.47.5.1057; SCOPUS: 2-s2.0-73849149858; |
| Реферат: | eng: Mineral assemblages from the Olkhovaya-1 River placers, in Kamchatka, Far-Eastern Russia, provide genetic information on their evolution. The minerals are dominated by Os-Ir-Ru alloys (80%), consisting of all possible mineral species, and Pt-Fe alloys consisting of native platinum, Fe-rich platinum and isoferroplatinum. The following features of the mineral assemblage are characteristic of mineralization associated with an ophiolitic complex: (1) in the Os-Ru-Ir diagram, the compositions of the hexagonal alloy form a ruthenium trend; (2) there are two typical equilibrium magmatic parageneses of alloys: early osmiumindium, and later isoferroplatinum-ruthenium, which both are associated with laurite and the solid solution laurite-irarsite (Ru,Ir) (S,As)2. The cooperite, sperrylite and Pd minerals formed at the postmagmatic stage. Tetraferroplatinum-tulameenite, replacing the Pt-Fe alloys, as well as the multicomponent compounds of Ru, Os, Ir, Rh, Pt with Fe replacing the Os-Ir-Ru alloys and PGE sulfides, result from serpentinization of PGM-bearing rocks. The PGM assemblage in the Ol'khovaya-1 River placers is related to the Karaginsky ophiolite complex of the Kamchatskiy Mys Peninsula.
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| Ключевые слова: | Ruthenium; Ruthenium compounds; Silicate minerals; Ruthenium alloys; chemical composition; industrial mineral; magmatism; mineralization; ophiolite; paragenesis; platinum group element; serpentinization; Kamchatka; Russian Federation; Rhodium; Platinum compounds; Platinum alloys; Platinum; Placers; Palladium; Osmium; Minerals; Mineralogy; Iron alloys; Iridium; Indium; Genes; Alloys; Russia; Platinum-group minerals; Ophiolitic rocks; Kamchatskiy Mys Peninsula; Isoferroplatinum; Russia; Platinum-group minerals; Ophiolitic rocks; Kamchatskiy Mys Peninsula; Isoferroplatinum-ruthenium paragenesis; Rhodium compounds; Indium-osmium paragenesis; |
| Издано: | 2009 |
| Физ. характеристика: | с.1057-1074 |