Mine detail: Lincoln Consolidated Mines

Previously called 'Wildman MineUnion MineMahoney Mine'

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Location

Lat / long: 38.40027, -120.80618

Resource(M)

Primary: Gold
Secondary: Silver
Ore: Gold, Arsenopyrite, Pyrite
Gangue: Quartz, Calcite, Ankerite, Sphalerite, Chlorite, Sericite
Orebody form: Tabular, pinch and swell
Discovery year: 1851

Production

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

Geology

Host rock:Mariposa Formation
Host type:Slate,Greenstone
Structure:Melones Fault zone, Bear Mountains Fault zone, Melones Fault Zone
Tectonic:Magmatic arc
Alteration processes:HWall rocks hydrothermally altered, having been partially to completely converted to ankerite, sericite, quartz, pyrite, arsenopyrite, chlorite, and albite. Locally, greenstone bodies adjacent to the quartz veins contain enough disseminated auriferous pyrite in large enough bodies to constitute low-grade ore.

References

DEP10310639
Reference{Deposit:: Carlson, D.W., and Clark, W.H., 1954, Mines and mineral resources of Amador County, California: California Division of Mines and Geology, 50th Report of the State Mineralogist, p. 185-196.}{Deposit:: Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 69-76.}{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:: Hazlitt, S., and Russell, D. 1990, The Lincoln Mine exploration project, Amador County, California: in, Seedorff, E., ed., Geology and ore deposits of the Sierra Nevada and foothills; Mary Harrison prospect, Royal Mountain King Mine, Lincoln Mine, Spanish Mine: Geological Society of Nevada, 1990 fall field trip guidebook, p. 101-117.}{Deposit:: Irelan, W., Jr., 1888, Amador County, Lincoln Mine: California State Mining Bureau, 8th Annual Report of the State Mineralogist, p. 73.}{Deposit:: Knopf, A., 1929, The Mother Lode system of California: U. S. Geological Survey Professional Paper 157, 88 p.}{Deposit:: Koschman, A.H., and Bergendahl, M.H., 1968, Principal Gold-Producing districts of the United States: U. S. Geological Survey Professional Paper 610, 283 p..}{Deposit:: Logan, C.A., 1927, Amador County, Lincoln Consolidated Mines: California State Mining Bureau, 23nd Report of the State Mineralogist, p. 170-172.}{Deposit:: Moore, L., 1968, Gold resources of the Mother Lode Belt, El Dorado, Amador, Calaveras, Tuolumne, and Mariposa counties, California: U.S. Bureau of Mines Technical Progress Report 5, p. 1-22.}{Deposit:: Seedorf, E., 1990, Geology and ore deposits of the Sierra Nevada and foothills; Mary Harrison prospect, Royal Mountain King Mine, Lincoln Mine, Spanish Mine: Geological Society of Nevada, 1990 fall field trip guidebook, p. 101-117.}{Deposit:: Schweickert, R.A., Hanson, R.E., and Girty, G.H., 1999, Accretionary tectonics of the Western Sierra Nevada Metamorphic Belt in Wagner, D.L. and Graham, S.A., editors, Geologic field trips in northern California: California Division of Mines and Geology Special Publication 119, p. 33-79.}{Deposit:: Sibson, R.H., and Poulsen, K.H., 1988, High-angle reverse faults, fluid-pressure cycling and mesothermal gold quartz deposits: Geology, v. 16, p. 551-555.}{Deposit:: Storms, W.H., 1900, The Mother Lode region of California: California Mining Bureau Bulletin 18, p. 72-74.}{Deposit:: Tucker, W.B., 1914, Amador County, Lincoln Consolidated Mines: California State Mining Bureau, 14th Annual Report of the State Mineralogist, p. 36.}{Deposit:: Zimmerman, J.E., 1983, The Geology and structural evolution of a portion of the Mother Lode Belt, Amador County, California: unpublished M.S. thesis, University of Arizona, 138 p.}{Deposit:: Additional information on the Lincoln Mine is available in file nos. 329-8357 and 339-1464 (CGS Mineral Reources Files, Sacrament)o.}
ReporterDowney, Cameron (Higgins, Chris, T.), Schruben, Paul G.