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

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.



References:
- Parada, S.G. (2002): The Lithogenic Nature of Some Gold Deposits in Carbonaceous–Terrigenous Sequences. Lithology and Mineral Resources 37(3), 239-250.
- Ore Geology Reviews 24, 7-44.

- http://www.smedg.org.au/apr03.html
- http://www.igem.ru/igem/chem/pt/sukhloge.htm





Mineral List:
Acanthite
Albite
Altaite
Ankerite
'Apatite'
Arsenopyrite
Baddeleyite
Berzelianite
'Bitumen'
Brass
Calaverite
Cervelleite
Chalcopyrite
'Chlorite Group'
Chromium
Cobaltite
Cooperite
Copper
Cubanite
Cylindrite
Dyscrasite
Enargite
Ferberite
Galena
Galenobismutite
Gersdorffite
var: Antimonian Gersdorffite
Gold
Gold
var: Electrum

Greenockite
Heazlewoodite
Hessite
Iodargyrite
Iron
Isoferroplatinum
Joséite
'K Feldspar'
Krennerite
Lead
Magnesite
var: Breunnerite

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


83 entries listed. 64 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 21st Oct 2009 10:08:54