Mine detail: Rich Bar Deposit

Lat / long:

40.01007, -121.19505

Host type:	Alluvium
Structure:	The Rich Bar Fault is a major steep fault of unknown displacement that trends northeast-southwest through the northeast corner of Rich Bar. The Rich Bar Fault forms the boundary between the Central belt and the Feather River perioditite belt, two of three major lithologic belts that occur in the northern Sierra Nevada. No known significant sources of lode-gold are associated with the fault in this vicinity, however. About 3-4 miles upstream (east) from Rich Bar, the NW-trending Melones Fault Zone crosses the East Branch. Here at Rich Gulch, the fault zone is associated with an important zone of low-sulfide gold-quartz veins that may be the source for some of the gold downstream at Rich Bar., Rich Bar Fault, Melones Fault Zone
Tectonic:	Magmatic arc
Alteration processes:	None

DEP	10310672
Reference	{Deposit:: Clappe, Louisa Amelia Knapp Smith, 1970, The Shirley letters: First published by the Pioneer (San Francisco) in 1854-1855; republished with introduction by Richard Oglesby, Peregrine Smith Books, 199 p. (See ?Additional Comments? below.)}{Deposit:: Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, 186 p.}{Deposit:: Jayko, A.S., 1989, Paleozoic and Mesozoic rocks of the Almanor 15-minute quadrangle, Plumas County, California: U.S. Geological Survey Open-File Report 88-757, 12 p.}{Deposit:: Young, J., 1983, History of Rich Bar, a blue ribbon gold camp: Self-published by Jim M. Young, 100 p.}{Deposit:: Miscellaneous Information on Rich Bar is contained in File Number 330-6150 (CDMG Mineral Resources Files, Sacramento).}
Reporter	Schruben, Paul G., Downey, Cameron I. (Higgins, Chris T.)