Mine detail: Standard Gold Mine

Previously called 'Gold StandardLallyCordexSouth PitNorth PitStarBuffalo Canyon'

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Location

Lat / long: 40.50213, -118.22834

Resource(B)

Primary: Gold, Silver
Tertiary: Arsenic, Barium-Barite
Ore: Gold
Gangue: Barite
Discovery year: 1932

Production

Operation type: Surface-Underground
Deposit type: sediment-hosted disseminated gold
Production size: Small
Development status: Producer
Production years: 1939-1949
First production started: 1939
Last production ended: 1949

Geology

Host rock:Natchez Pass Limestone, Grass Valley Formation
Host type:Limestone,Argillite,Phyllite
Associated rock:Rochester Formation, Natchez Pass Formation, Grass Valley Formation
Associated type:Rhyolite,Limestone,Phyllite,Tuff
Structure:The 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
Alteration processes:Strong silicification of host rock.

References

MRDSM060330
DEP10310412
Reference{Deposit:: Silberling, N. J. and Wallace R. E., 1967, Geologic Map of the Imlay Quadrangle, Pershing County, Nevada, USGS Map GQ-666.}{Deposit:: NBMG, 1988, The Nevada Mineral Industry 1987, NBMG Special Publication MI-1987.}{Deposit:: 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.}{Deposit:: 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.}{Deposit:: Vanderburg, 1936, Reconnaissance of Mining Districts in Pershing Co., Nevada: USBM IC 6902}{Deposit:: Johnson, M. G., 1977, NBMG Bull 89.}{Deposit:: Bonham, H. F., Jr., 1984, NBMG Field Examination of the Rye Patch District.}{Deposit:: NBMG Staff, 1985, NBMG OFR 85-3.}{Deposit:: 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.}{Deposit:: Apollo Gold Corporation , press releases, 2002-2004, company website; http://www.apollogold.com.}
ReporterJohnson, Maureen G., Harner, Joy L. (Roberts, Ralph J.), La Pointe, D.D. (Tingley, J.V.), Phinisey, J. D. (Marcus, S.), Li, Zhiping (Peters, S.), Mayerle, Ronald T., LaPointe, D.D., Schruben, Paul G., Crandell, William D.