Mine detail: Wood Gulch Mine

Previously called ''

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Location

Lat / long:

41.67934, -115.96649

Resource(M)

Primary:	Gold
Secondary:	Silver
Ore:	Gold
Gangue:	Quartz, Pyrite
Orebody form:	The shape of the deposit is irregular.
Discovery year:	1986

Production

Operation type:	Surface
Deposit type:	hydrothermal stockwork, disseminated
Production size:	Small
Development status:	Producer
Production years:	1988-1990
First production started:	1988
Last production ended:	1990

Geology

Host rock:	Schoonover Formation
Host type:	Argillite,Sedimentary Breccia
Associated type:	Dacite,Andesite
Structure:	low-angle thrust faults, The mine area is cut by high-angle faults along N-S, NW, and NE trends. The Tomasina fault is the major structural feature in the mine area.
Tectonic:	thrust belt
Alteration processes:	The rocks are argillically altered on a microcopic scale. Schoonover sediments have been silicified and dacites have been argillized. The altered dacitic volcanic rocks were not as good host rocks for mineralization as the brittle, siliceous, Schoonover lithologies.

References

MRDS	M242965
DEP	10310517
Reference	{Deposit:: USDA Forest Service, 1988, Environmental Assessment - Wood Gulch Project Gold Mine Operation, Elko County, Nevada.}{Deposit:: NBMG, 1992, The Nevada Mineral Industry 1991, NBMG Special Publication MI-1991.}{Deposit:: Rocky Mountain Pay Dirt, June, 1989.}{Deposit:: The Mining Record, 2/8/89}{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:: Tingley, J. V., 1989, NBMG field examination and sample analyses; NBMG files}{Deposit:: Homestake Mining Company, 1987, Wood Gulch Project Plan of operations, NBMG File 44, item 13.}{Deposit:: Baker, D. J., Stanley, W. R., and Dickerson, R. B., 1990, Geology of the Wood Gulch Mine Area and the Doby Prospect, Northern Independence Range, Elko Co., Nevada, unpublished report, NBMG file 44.}
Reporter	La Pointe, D.D. (Tingley, J.V.), Taylor, J., Phinisey, J. D. (Marcus, S.), Schruben, Paul G.