California · Amador County
Past Producer

Wildman Mahoney Mine

Amador County, California, United States
GoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
Deposit typeHydrothermal vein
Model273: Low-sulfide Au-quartz vein
Orebody formTabular, pinch and swell
Ore controlOre shoots within mesothermal gold bearing quartz veins, and as disseminated auriferous sulfides in greenstone and schist\n
Materials
Ore mineralsGold, Pyrite, Arsenopyrite
GangueQuartz, Slate, Schist
Geology
Host rockSlate,Greenstone,Amphibole Schist · Mariposa Fm.
StructureBear Mountains Fault zone, Melones Fault zone, Melones Fault Zone
Tectonic settingMagmatic arc
AlterationAnkeritic and sericitic alteration of wall rocks
Economic & production
Development statusPast Producer
Discovery year1851
Identification
Deposit ID10310692
RegionNA
Data scoreA
Coordinates38.39698, -120.80332
References
Koschman, A.H., and Bergendahl, M.H., 1968, Principal gold-producing districts of the United State: U.S. Geol. Survey Prof. Paper 610, 53 p.Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 69-76.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.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.Logan, C.A., 1927, Amador County, Lincoln Consolidated Mines: California State Mining Bureau, 23nd Report of the State Mineralogist, p. 170-172.Logan, C.A., 1934, Mother Lode gold belt of California: California Division of Mines Bulletin 108.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.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.Tucker, W.B., 1914, Amador County, Lincoln Consolidated Mines: California State Mining Bureau, 14th Annual Report of the State Mineralogist, p. 36.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.