Nevada · Lyon County
Past Producer

MacArthur Copper Deposit

Lyon County, Nevada, United States
Copper
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper
Deposit
Deposit typedisseminated
Model53: Porphyry Cu
Deposit sizeS
Ore controlThe primary mineralization consisted of pyrite and chalcopyrite sparsely disseminated.
Materials
Ore mineralsChalcocite, Chalcopyrite
GanguePyrite
Geology
Host rockQuartz Monzonite
Associated rockGranodiorite
AlterationGreen-stained outcrops of copper-rich rock occur in the mine area.
Economic & production
Development statusPast Producer
First production1995
Last production1997
Identification
Deposit ID10310387
MRDS IDN000424
RegionNA
Data scoreA
Coordinates39.04741, -119.2407
References
Telluride Claims, Yerington Mining District, Lyon County, Quade Visit Site 7-11-89,NBMG Unpublished Mining District Files (Tingley Files).Roberto, Marguerite, 1992, USBM Minerals Today, Oct. 1992, p. 28.northern Miner Sept. 18, 1989 And Oct.7, 1991Skillings 9/19/92Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.NBMG MI-1994NBMG MI-1995.Anonymous, 1994, MacArthur permits in hand; The Northern Miner, January 3 issue, p. 3.Denver Mining Record, 8/31/94Engineering & Mining Journal, 5/1/95Rocky Mountain Pay Dirt, 5/1/95Northern Miner, 5/15/95.Jurassic Magmatism and Metal Deposits in Western Nevada, 2002, Spring Field Trip Guidebook, Geological Society of Nevada Special Publication No. 35.Anonymous, 1993e, Arimetco boosts MacArthur interest: The Northern Miner, May 31, p. 6.\nAlbino, G.V., 1995, Porphyry copper deposits of the Great Basin?Nevada, Utah, and adjacent California, in Pierce, F.W., and Bolm, J.G., eds, Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 267?296.\nDilles, J.H., and Proffett, J.M., 1995, Metallogenesis of the Yerington batholith, Nevada, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 306?315.\nEinaudi, M.T., 1982, Description of skarns associated with porphyry copper plutons, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 139-183.\nHeatwole, D.A., 1978, Controls of oxide copper mineralization, MacArthur property, Lyon County, Nevada: Arizona Geological Society Digest, v. 11, Tucson, p. 59?66.\nSteininger, R.C., 1995, Great Basin, exploration review: SEG (Society of Economic Geologists) Newsletter, no. 22, July, p. 26.\nArimetco 1993 Annual Report\n