California · El Dorado County
Past Producer

Pacific Quartz Mine

El Dorado County, California, United States
GoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
TertiarySilver
Commodity typeM
Deposit
Deposit typeHydrothermal vein
Model273: Low-sulfide Au-quartz vein
Orebody formTabular
Ore controlOpen-fracture filling
Materials
Ore mineralsGold, Arsenopyrite, Pyrite
GangueSlate, Talc, Muscovite
Geology
Host rockSlate · Mariposa Formation
StructureMelones Fault Zone
Tectonic settingMagmatic arc
Economic & production
Development statusPast Producer
Discovery year1852
Identification
Deposit ID10310663
RegionNA
Data scoreB
Coordinates38.72418, -120.79764
References
Busch, L.L., 2001, Mineral land classification of El Dorado County, California: California Geological Survey Open-File Report 2000-03.Clark, L.D., 1964, Stratigraphy and structure of part of the western Sierra Nevada metamophic belt, California:U.S. Geological Survey Professional Paper 410, 70 p.Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 107-108.Clark, W.B. and Carlson, D.W., 1956, Mines and mineral resources of El Dorado County: California Division of Mines, California Journal of Mines and Geology, v. 52, p. 422.Duffield, W.A., and Sharp, R.V., 1975, geology of the Sierra Foothills melange and adjacent areas, Amador County, California: U.S. Geological Survey Professional Paper 827, 30 p.Earhart, R.L., 1988, Geologic setting of gold occurrences in the Big Canyon area, El Dorado County, California: U.S. Geological Survey professional Paper 1576, 13 p.Irelan, W., Jr., 1888, El Dorado County, Church Mine: California State Mining Bureau, 8th Annual Report of the State Mineralogist, p. 183-185.Logan, C.A., 1926, El Dorado County: California State Mining Bureau, 22nd Report of the State Mineralogist, p.417-418Logan, C.A., 1934, Mother Lode gold belt of California: California Division of Mines Bulletin 108, p. 35, 52.Logan, C.A., 1938, Mineral resources of El Dorado County: California Division of Mines, 34th Report of the State Mineralogist, p. 266.Saleeby, J., 1982, Polygenetic ophiolite belt of the California Sierra Nevada: Geochronological and tectonostratigraphic development: Journal of Geophysical research, v. 87, n0. 8, p. 1803-1824.Tucker, W.B., and Waring, C.A., 1916, Mines and mineral resources of El Dorado, Placer, Sacramento, and Yuba counties: California State Mining Bureau, 15th Report of the State Mineralogist, p. 293-295.Additional information on the Pacific Quartz Mine is contained in File No. 322-5974 (CGS Mineral Resources Files, Sacramento)