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Sukhoi Log deposit, Kropotkinsky ore cluster, Lena Gold District, Bodaibo, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia

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Stratabound deposit, hosted in carbonaceous shales.
One of the world's largest gold deposits. Also a PGE deposit.

The ore genesis is related to metamorphic/metasomatic transformations of geochemically specialized carbon-bearing sediments. The platinum/native metals mineralizations preceded the gold ore stage. The reduced metal forms, including PGE, originated during hydrogen-induced reduction coupled with oxidation of hydrocarbons. Gold-bearing quartz-pyrite veinlets were deposited from hot brine hydrothermal fluids.

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90 entries listed. 70 valid minerals.

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References

Keren Tan (1998): Geological features and ore-controlling regularities of the Sukhoi-Log gold deposit. Gold Science and Technology 6(4), 29-37 (in Chinese with English abstract).

Parada, S.G. (2002): The Lithogenic Nature of Some Gold Deposits in Carbonaceous–Terrigenous Sequences. Lithology and Mineral Resources 37(3), 239-250.

Distler, V.V., Yudovskaya, M.A., Razvozhaeva, E.A., et al. (2003): New data on platinum mineralization of gold ores of deposit Sukhoi Log (Lena gold mining area, Russia). Geochimiya (Geochemistry), 393(4), 524-527 (in Russian).

Large, R. R., Maslennikov, V. V., Robert, F., Danyushevsky, L. V., & Chang, Z. (2007). Multistage sedimentary and metamorphic origin of pyrite and gold in the giant Sukhoi Log deposit, Lena Gold Province, Russia. Economic Geology, 102(7), 1233-1267.

Ore Geology Reviews 24, 7-44.

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