Mine detail: Pacific Quartz Mine

Previously called ''

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Location

Lat / long: 38.72418, -120.79764

Resource(M)

Primary: Gold
Tertiary: Silver
Ore: Gold, Arsenopyrite, Pyrite
Gangue: Slate, Talc, Muscovite
Orebody form: Tabular
Discovery year: 1852

Production

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

Geology

Host rock:Mariposa Formation
Host type:Slate
Structure:Melones Fault Zone
Tectonic:Magmatic arc

References

DEP10310663
Reference{Deposit:: Busch, L.L., 2001, Mineral land classification of El Dorado County, California: California Geological Survey Open-File Report 2000-03.}{Deposit:: Clark, L.D., 1964, Stratigraphy and structure of part of the western Sierra Nevada metamophic belt, California:}{Deposit:: U.S. Geological Survey Professional Paper 410, 70 p.}{Deposit:: Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 107-108.}{Deposit:: 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.}{Deposit:: 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.}{Deposit:: 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.}{Deposit:: Irelan, W., Jr., 1888, El Dorado County, Church Mine: California State Mining Bureau, 8th Annual Report of the State Mineralogist, p. 183-185.}{Deposit:: Logan, C.A., 1926, El Dorado County: California State Mining Bureau, 22nd Report of the State Mineralogist, p.417-418}{Deposit:: Logan, C.A., 1934, Mother Lode gold belt of California: California Division of Mines Bulletin 108, p. 35, 52.}{Deposit:: Logan, C.A., 1938, Mineral resources of El Dorado County: California Division of Mines, 34th Report of the State Mineralogist, p. 266.}{Deposit:: 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.}{Deposit:: 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.}{Deposit:: Additional information on the Pacific Quartz Mine is contained in File No. 322-5974 (CGS Mineral Resources Files, Sacramento)}
ReporterDowney, Cameron (Higgins, Chris, T.), Schruben, Paul G.