Lebediny Gold Deposit, Central Aldan: Mineral Parageneses, Stages, and Formation Conditionsстатья

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Дата последнего поиска статьи во внешних источниках: 24 октября 2016 г.

Работа с статьей

[1] Dobrovol’skaya M. G., Razin M. V., Prokof’ev V. Y. Lebediny gold deposit, central aldan: Mineral parageneses, stages, and formation conditions // Geology of Ore Deposits. — 2016. — Vol. 58, no. 4. — P. 308–326. The mineral parageneses and succession of their formation are considered for the first time for the Zverevsky, Orekhovy, and Vodonosny ore lodes of the Lebediny gold deposit and the Radostny prospect in the Central Aldan ore district, which are genetically related to the epoch of Mesozoic tectonomagmatic reactivation. The orebodies, represented by two morphological varieties—ribbonlike lodes and steeply dipping veins—are hosted in lower part of the Vendian–Cambrian dolomitic sequence, which is cut through by Mesozoic subalkaline intrusive bodies. The chemistry of fahlore and rare minerals, including native gold and bismuth, altaite, aikinite, tetradymite, and sulfosalts of lillianite series, has been studied. Native gold is related to the late hydrothermal process and occurs in skarn and in quartz–tremolite–sulfide and quartz–carbonate–sulfide veins. The data on stable sulfur (δ34S) isotopes of sulfides, oxygen (δ18O) and carbon (δ13C) isotopes of carbonates, as well as on fluid inclusions in various generations of tremolite and quartz, provide evidence for the heterogeneity of ore-bearing solutions, their relationships to magmatism, the depth of the source feeding each specific lode, and different sources of ore-forming hydrothermal solutions. [ DOI ]

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