California · Calaveras County
Past Producer

Penn Mine

Calaveras County, California, United States
SilverGoldLeadZincCopper
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Gold, Lead, Zinc, Copper
Commodity typeM
Deposit
Deposit typeStratabound exhalative
Model184: Massive sulfide, kuroko
Orebody formPod, lens
Ore controlSyn-volcanic exhalative Kuroko type
Materials
Ore mineralsPyrite, Sphalerite, Bornite, Chalcopyrite
GangueQuartz, Calcite, Barite, Schist
Geology
Host rockPorphyry,Tuff · Gopher Ridge Volcanics
StructureBear River and Melones fault zones
Tectonic settingMagmatic arc
AlterationSericitic and silicic alteration of wall rock metavolcanics to sericite and chlorite schist.
Economic & production
Development statusPast Producer
Discovery year1861
Identification
Deposit ID10310664
Alternate namesCampo Seco
RegionNA
Data scoreA
Coordinates38.23075, -120.8741
References
Aubury, L.E., 1908, Copper resources of California: California Mining Bureau Bulletin 50, p. 228-245.Clark. W. B., and Lydon, P.A., 1962, Mines and mineral resources of Calaveras County, California: California Division of Mines and Geology County Report No. 2, p. 28-31.Franklin, J.M., Lydon, J.W., and Sangster, D.F., 1981, Volcanic-associated massive sulfide deposits: Economic Geology Seventy-fifth Anniversary Volume, p. 485-627.Hanks, H.G., 1884, Copperopolis, Campo Seco, Satellite, and Sunrise copper mines: California Mining Bureau Report 4, p. 148-151.Heyl, G.R., Cox, Manning, W., and Eric, J.H., 1948, Penn zinc-copper mine, Calaveras County, California: California Division of Mines Bulletin 144, p. 61-84.Hutchinson, R.W., 1973, Volcanogenic sulfide deposits and their metallogenic significance: Economic Geology, v. 68, p 1223-1246.Irelan, W.R., Jr., 1888, Calaveras County: California Mining Bureau Report 8, p. 121-157.Kemp, W. R., 1982, Petrochemical affiliations of volcanogenic massive sulfide deposits of the Foothill CU-Zn belt, Sierra Nevada, California: University of Nevada - Reno, unpublished Ph.D. thesis, 458 p.Lambert, I.B., and Sato, T., 1974, The Kuroko and associated ore deposits of Japan - A review of their features and metallogenesis: Economic Geology, v. 69, p. 1215-1236.Peterson, J. A., 1985, Geologic map of the Penn Mine, Calaveras County, California: U. S. Geological Survey Miscellaneous Field Studies Map MF-1797, 2 sheets.Peterson, J. A., 1985, Geochemical analyses of rock samples collected at the Penn Mine, Calaveras County, California: U. S. Geological Survey Open-File report 85-588, 17 p.Sato, T., 1971, Physiochemical environment of Kuroko mineralization at Uchinotai Deposit of Kosaka Mine, Akita Prefecture: Society of Mining Geol. of Japan Special Issue no. 2, p. 137-144.Schmidt, J.M., 1978, Volcanogenic massive sulfides at Campo Seco (Calaveras County), California: Stanford University, unpublished M.S. thesis, 104 p.Tucker, W.B., 1914, Calaveras County - Penn Copper Mine: California State Mining Bureau, 14th Annual Report of the State Mineralogist, p. 59-62.Wiebelt, F.J., and Ricker, S., 1948, Penn mine slag dump and mine water, Calaveras County, California: U.S. Bureau of Mines Report of Investigations 4224, 6 p.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.