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- W800755362 abstract "Zloze masywnych rud siarczkowych Mina Pilas (MSMP) w Cordillera Real, Ekwador, jest zlokalizowane wśrod skal metamorficznych podgrupy Alao–Paute, wieku jurajskiego. Jest typowym zlozem wulkanogenicznym proksymalnym, stratoidalnym, Fe–Cu. Skaly towarzyszące skladają sie z cienko przewarstwionych lupkow i metalupkow plagioklazowo-chlorytowo-kwarcowo-muskowitowych i kwarcowo-muskowitowo-pirytowych. Gorna cześc zloza jest utleniona. Okruszcowanie jest masywne, zlozone glownie z pirytu, z niewielkimi ilościami chalkopirytu, pirotynu, bornitu i tetraedrytu. W śladowych ilościach stwierdzono digenit, kowelin i boulangeryt. Mineraly towarzyszące to plagioklaz, kwarc, chloryt i serycyt. Zloze rud siarczkowych Mina Pilas zawiera glownie Cu i Fe, ale jego niewielki rozmiar i stosunkowo mala zawartośc metali szlachetnych (Au, Ag) sprawia, ze w chwili obecnej jest zlozem pozabilansowym.MASSIVE SULPHIDE DEPOSIT ”MINA PILAS” (MSMP), CORDILLERA REAL, EKWADORSummary ”Mina Pilas” (MSMP) deposit that lies at Cordillera Real 23 km southeast from Riobamba (Chimbrorazo province, Equador) has been described as a volcannic hosted massive sulphide (VHMS) deposit. Host rocks are greenstones of the Alao-Paute group comprising andesite-basalt type volcanogenic suite intercalated with metashists composed of plagioclase, chlorite, quartz, muscovite and pyrite. The deposit has been classified as a pyrite-type containing minor copper and gold (361 ppb, in average). Massive and stockwork orebodies contain pyrite, chalcopyrite, bornite, digenite, tetrahedrite, covellite and goethite. Uppermost part of deposit is oxidized. Pyrite ores are not extracted recently because of low gold tenor." @default.
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- W800755362 date "2001-01-01" @default.
- W800755362 modified "2023-09-23" @default.
- W800755362 title "Złoże masywnych rud siarczkowych Mina Pilas, Cordillera Real, Ekwador" @default.
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