Mine detail: Comstock Mine

Previously called 'Silver King Coalition GroupUnited Park City Mines'

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Location

Lat / long:

40.623, -111.54217

Resource(M)

Primary:	Lead, Silver
Secondary:	Zinc, Copper, Gold
Ore:	Anglesite, Chalcopyrite, Galena, Gold, Malachite, Pyrite, Sphalerite
Gangue:	Calcite, Quartz
Orebody form:	TABULAR
Discovery year:	1882

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1885
Last production ended:	1925

Geology

Host rock:	Thaynes Formation
Host type:	Shale,Sandstone,Limestone
Associated rock:	Massachusetts Dike
Associated type:	Diorite
Structure:	Uinta-Cottonwood Arch, Sevier Overthrust Belt, Iron Hollow Syncline, Comstock-Massachusetts Fault, Striking East-Northeast, And Dipping To The Southeast
Tectonic:	Basin And Range-Colorado Plateau Transtion Zone, Cordilleran Hinge Line
Alteration processes:	Oxidation

References

MRDS	D012011
DEP	10101916
Reference	{Deposit:: BOUTWELL, J.M., 1912, GEOLOGY AND ORE DEPOSITS OF THE PARK CITY DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 77, 231 PP.}{Deposit:: ERIKSON, A.J., (EDITOR), 1968, PARK CITY DISTRICT, UTAH: GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 22, UTAH GEOLOGICAL SOCIETY.}{Deposit:: BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHER, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111, 672 PP.}{Deposit:: BARNES, M.P., AND SIMOS, J.S., 1968, ORE DEPOSITS OF THE PARK CITY DISTRICT WITH A CONTRIBUTION ON THE MAYFLOWER LODE, IN ORE DEPOSITS OF THE UNITED STATES: AM. INST. METALL. ENG., V.II, P. 1102}{Deposit:: BAKER, A.A. CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534}
Reporter	Shubat, Michael A.