Mine detail: Doby George Deposit

Previously called 'Doby Deposit'

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Location

Lat / long:

41.6629, -116.05993

Resource(M)

Primary:	Silver, Gold
Ore:	Gold, Electrum
Gangue:	Quartz, Sericite
Orebody form:	pods, irregular
Discovery year:	1983

Production

Operation type:	Surface
Deposit type:	Sediment-hosted gold
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Schoonover Formation (in part)
Host type:	Sandstone,Siltstone,Chert
Associated type:	Diorite,Tuff,Dacite
Structure:	In mineralized areas, numerous high-angle fault sets trend N, NE, and WNW, standing out topographically as prominent silicified ribs.
Alteration processes:	Host rocks are silicified and often sericitized. The diorite is weakly argillized in places

References

DEP	10310518
Reference	{Deposit:: Denver Mining Record, 7/23/95}{Deposit:: Skillings Mining Review, 8/26/95}{Deposit:: Northern Miner, 9/11/95}{Deposit:: Miing Engineering, 10/1/95}{Deposit:: Denver Mining Record, 11/15/95}{Deposit:: Denver Mining Record, 1/29/97}{Deposit:: Elko Daily Free Press, 10/11/97}{Deposit:: Rocky Mountain Pay Dirt, June, 1989.}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.}{Deposit:: Western Exploration and Development Ltd., 1999, personal communication.}{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 County, Nevada, unpulished report, NBMG files}
Reporter	Lapointe, D.D., Schruben, Paul G.