Mine detail: Comstock Mine

Previously called 'Silver King Coalition GroupUnited Park City Mines'

Location:	Summit County, Utah, United States, North America
Lat / long:	40.623, -111.54217
dep_id:	10101916
mrds_id:	D012011
Commodity type:	metallic
Major mineral:	Lead, Silver
Minor mineral:	Zinc, Copper, Gold
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Anglesite, Chalcopyrite, Galena, Gold, Malachite, Pyrite, Sphalerite
gangue:	Calcite, Quartz
orebody_fm:	TABULAR
work_type:	Surface/Underground
alteration:	Oxidation
conc_proc:	Precipitation Fracture And Breccia Zones
ore_ctrl:	Fractured And Brecciated Margins Of Diorite Porphyry Dike Within The Comstock-Massachusetts Fault
Reporter:	Shubat, Michael A.
hrock_unit:	Thaynes Formation
hrock_type:	Shale,Sandstone,Limestone
arock_unit:	Massachusetts Dike
arock_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
Year first produced:	1885
yr_lst_prd:	1925
disc_yr:	1882
References:	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