Standard Gold Mine

Pershing County, Nevada, United States

GoldSilverArsenicBarium-Barite

⌖ Show on map USGS source ↗

Commodities

PrimaryGold, Silver

TertiaryArsenic, Barium-Barite

Commodity typeB

Deposit

Deposit typesediment-hosted disseminated gold

Model173: Sediment-hosted Au

Deposit sizeS

WorkingsUnderground

Ore controlA northerly striking normal fault controlled the movement of mineralizing fluids which spread along the youngest thrust fault and formed the South Pit orebody. Similarly, a north-striking fracture zone formed a conduit along the thrust contact below the impermeable Grass Valley Shale, to form the North Pit orebody.

Materials

Ore mineralsGold

GangueBarite

Geology

Host rockLimestone,Argillite,Phyllite · "Natchez Pass Limestone", "Grass Valley Formation"

Associated rockRhyolite,Limestone,Phyllite,Tuff · "Rochester Formation", "Natchez Pass Formation", "Grass Valley Formation"

StructureThe rocks in the area have been subjected to three periods of thrust faulting; intense folding of sediments in upper plates of thrust faults; normal faulting., Regional thrust faulting

AlterationStrong silicification of host rock.

Economic & production

Development statusProducer

Production years1939-1949

First production1939

Last production1949

Discovery year1932

Identification

Deposit ID10310412

MRDS IDM060330

Alternate namesGold StandardStandard, Lally, Cordex, South Pit, North Pit, Star, Buffalo Canyon

RegionNA

Data scoreA

Coordinates40.50213, -118.22834

References

Silberling, N. J. and Wallace R. E., 1967, Geologic Map of the Imlay Quadrangle, Pershing County, Nevada, USGS Map GQ-666.NBMG, 1988, The Nevada Mineral Industry 1987, NBMG Special Publication MI-1987.Ronkos, C. J., 1986, Geology and Interpretation Of Geochemistry Of The Standard Mine, Humboldt County, Nevada, Journal of Geochemical Exploration, vol. 25, p. 129-137.Cuffney, R., Atkinson, R., and Buffa, R., 1991, Roadside Geology and Precious-Metal Mineralization, I-80 Corridor, Reno to Elko, Nevada, in Buffa, R. and Coyner, A., Eds., Geology and Ore Deposits of The Great Basin, Field Trip Guidebook Compendium, the Geological Society of Nevada, Reno, P. 1095.Vanderburg, 1936, Reconnaissance of Mining Districts in Pershing Co., Nevada: USBM IC 6902Johnson, M. G., 1977, NBMG Bull 89.Bonham, H. F., Jr., 1984, NBMG Field Examination of the Rye Patch District.NBMG Staff, 1985, NBMG OFR 85-3.Long, 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.Apollo Gold Corporation , press releases, 2002-2004, company website; http://www.sedar.com