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

Photo: PMK
Latitude: 58°36'0"N
Longitude: 115°13'48"E
 
 
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.

Mineral List

Acanthite
Albite
'α-Brass'
Altaite
Ankerite
'Apatite'
Arsenopyrite
Baddeleyite
Berzelianite
'Bitumen'
Calaverite
Cervelleite
Chalcopyrite
'Chlorite Group'
Chromium
Cobaltite
Cooperite
Copper
Cubanite
Cylindrite
Dolomite
Dyscrasite
Enargite
Ferberite
Florencite-(Ce)
Galena
Galenobismutite
Gersdorffite
var: Antimonian Gersdorffite
var: Cobaltoan Gersdorffite
Gold
var: Electrum
Greenockite
Heazlewoodite
Hessite
Indium
Iodargyrite
Iron
Isoferroplatinum
'Joséite'
'K Feldspar'
Krennerite
Lead
Magnesite
var: Breunnerite

Magnetite
Maucherite
Millerite
Molybdenite
Monazite-(Ce)
Monazite-(Nd)
Muscovite
var: Phengite
var: Sericite
Nickeline
Paragonite
Pentlandite
Petzite
Platinum
Pyrite
var: Bravoite
var: Cobaltoan Pyrite
Pyrrhotite
Quartz
Rammelsbergite
Rhodium
Rutile
Safflorite
Scheelite
Siderite
Siderite
var: Pistomesite

var: Sideroplesite
Silver
var: Amalgam
Skutterudite
var: Smaltite
Sperrylite
Sphalerite
Stützite
Tetraferroplatinum
Tetrahedrite
Tin
Titanium
'Tourmaline'
Tulameenite
Tungsten
Ullmannite
Umangite
Violarite
'Wolframite'
Xenotime-(Y)


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.

External Links


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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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