Mine detail: Sultana - Orleans Mine

Previously called 'Sebastopol MineHouston Hill MinePrescott MineOrleans MineElectric MineCentennial Mine'

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Location

Lat / long:

39.20299, -121.04533

Resource(M)

Primary:	Gold
Secondary:	Silver
Ore:	Gold, Pyrite, Galena, Arsenopyrite
Gangue:	Quartz, Calcite, Chalcopyrite, Sphalerite
Orebody form:	Tabular
Discovery year:	1850

Production

Operation type:	Underground
Deposit type:	Hydrothermal vein
Development status:	Past Producer

Geology

Host type:	Diabase,Granodiorite
Structure:	Wolf Creek Fault Zone, Gillis Hill Fault, Melones Fault Zone
Tectonic:	Magmatic arc
Alteration processes:	Ankeritic, sericitic, and pyritic replacement of wall rocks adjacent to veins

References

DEP	10310687
Reference	{Deposit:: Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 191, p. 53.}{Deposit:: Johnston, W.G., Jr., 1940, The gold quartz veins of Grass Valley, California: U.S. Geological Survey Professional Paper 194, 101 p.}{Deposit:: Koschmann, A.H., and Bergendahl, M.H., 1968, Gold-producing districts of the United States: U.S. Geological Survey Professional Paper 610, 283 p.}{Deposit:: Lindgren, W., 1896a, Geologic atlas of the United States - Nevada City Special Folio: U.S. Geological Survey Folio 29.}{Deposit:: Lindgren, W., 1896b, Gold-quartz veins of Nevada City and Grass Valley: Seventeenth Annual Report of the U.S. Geological Survey, Part 2, p. 1-262}{Deposit:: MacBoyle, E.M., 1919, Mines and mineral resources of Nevada County: Sixteenth Annual Report of the State Mineralogist, California State Mining Bureau, p. 1-270.}{Deposit:: Additional information on the Sultana-Orleans Mines is contained in File Nos. 331-9089 and 339-5929 (CGS Mineral Resources Files, Sacramento)}
Reporter	Downey, Cameron, Schruben, Paul G.