Mine detail: Alpha Mine

Previously called ''

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Location

Lat / long:

37.84501, -106.96312

Resource(M)

Primary:	Silver
Tertiary:	Antimony, Copper, Lead, Zinc
Ore:	Cerargyrite, Silver
Gangue:	Amethyst, Barite, Chalcanthite, Limonite, Pyrite, Quartz, Stephanite, Stibnite
Discovery year:	1883

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1892

Geology

Host rock:	Campbell Mtn. Member Of Bachelor Mtn. Rhyolite;Fisher Quartz Latite
Host type:	Rhyolite
Associated rock:	Campbell Mtn. Member Of Bachelor Mtn. Rhyolite;Fisher Quartz Latite
Associated type:	Rhyolite,Quartz Latite
Structure:	San Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas, Alpha-Corsair Fault; Creede Graben
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Bleaching, Variable Silicification And Argillization

References

MRDS	D007886
DEP	10012325
Reference	{Deposit:: EMMONS, W.H., AND LARSEN, E.S. 1923, GEOLOGY AND ORE DEPOSITS OF THE CREEDE DISTRICT, COLORADO: USGS BULL. 718, 198 P.}{Deposit:: STEVEN, T.A., AND RATTE, J.C., 1965, GEOLOGY AND STRUCTURAL CONTROL OF ORE DEPOSITION IN THE CREEDE DISTRICT, SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 487, 90 P.}{Deposit:: LINDEMANN, J.W., AND OTHERS, EDS., 1981, FIELD TRIP NOTES, CREEDE MINING DISTRICT, SAN JUAN VOLCANIC PROVINCE, COLORADO: DENVER REGIONAL EXPLORATION GEOLOGISTS SOC. GUIDEBOOK}
Reporter	Schwochow, Stephen D.