Mine detail: Open Pit Pennsylvania Mine

Previously called 'Tom Johnston Property In PartPart of Alta ClaimsJumbo Claim Area?'

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Location

Lat / long:

37.41358, -114.47555

Resource(B)

Primary:	Silver, Copper, Gold
Tertiary:	Barium-Barite
Ore:	Brochantite, Chalcopyrite, Gold, Malachite
Gangue:	Calcite, Clay, Pyrite, Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Prospect Mountain Quartzite;Pioche Shale
Host type:	Diorite,Clastic Sedimentary Rock,Andesite
Associated type:	Diorite,Andesite
Structure:	Caliente Caldron Complex, Ne-And Nw- Striking Faults.
Alteration processes:	Argillization, Silicification,

References

MRDS	M241647
DEP	10046480
Reference	{Deposit:: BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT ON SEPT 13,1983.}{Deposit:: TSCHANZ AND PAMPEYAN, 1970, NBMG BULL 73, P. 170-172, PL. I., II.}{Deposit:: NBMG DISTRICT FILES, REPORT ON TOM JOHNSON PROPERTY}{Deposit:: GRAPEVINE SPRING G-E-M RESOURCES AREA TECHNICAL REPORT, 1983. FOR BLM}{Reserve-Resource:: NBMG DISTRICT FILES, UNPUB. REPORT ON TOM JOHNSTON PROPERTY}
Reporter	La Pointe, D.D. (Tingley, J.V.)