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Open AccessArticle

Re Sulfides from Zhelos and Tokty-Oi Intrusions (East Sayan, Russia)

1
A.P. Vinigradov Institute of Geochemisry Siberian Branch of Russian Academy of Science, 664033 Irkutsk, Russia
2
Geological Institute Siberian Branch of Russian Academy of Science, 670047 Ulan-Ude, Russia
*
Author to whom correspondence should be addressed.
Minerals 2019, 9(8), 479; https://doi.org/10.3390/min9080479
Received: 1 July 2019 / Revised: 5 August 2019 / Accepted: 6 August 2019 / Published: 7 August 2019
(This article belongs to the Special Issue Sulfide Geochemistry)
Re sulfides were discovered in Cu–Ni–platinum-group elements (PGE) ores of the Zhelos and Tokty-Oi intrusions. These intrusions can be considered as products of the mantle superplume responsible for Rodinia’s break-up. The mineral compositions were determined in situ in polished samples. Electron microprobe analyses were mostly consistent with a general formula of (Cu,Fe,Mo,Os,Re)5S8, (Cu,Fe,Mo,Os,Re)4S7, and (Cu,Fe,Mo,Re)S2. One of the major features of Re sulfide from the Zhelos intrusion is its high osmium content. The ΣMe/S ratio for a part of our data is consistent with that of the tarkianite. Re sulfides from the Tokty-Oi have a ΣMe/S ratio similar to those in rheniite or dzeskazganite, but differ from them by the presence of Fe and Cu and the metal-to-metal ratio. The localization of the Re sulfide within the chalcopyrite suggests its crystallization from the residual Cu-rich liquid. View Full-Text
Keywords: rhenium; Re–Cu–Fe ± Mo ± Os sulfide; Cu–Ni–PGE deposit; immiscible sulfide liquid; Zhelos; Tokty-Oi; East Sayan; Russia rhenium; Re–Cu–Fe ± Mo ± Os sulfide; Cu–Ni–PGE deposit; immiscible sulfide liquid; Zhelos; Tokty-Oi; East Sayan; Russia
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Kolotilina, T.B.; Mekhonoshin, A.S.; Orsoev, D.A. Re Sulfides from Zhelos and Tokty-Oi Intrusions (East Sayan, Russia). Minerals 2019, 9, 479.

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