Mine detail: Keystone Tunnels

Previously called ''

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Location

Lat / long: 40.61855, -111.54106

Resource(M)

Primary: Lead, Silver, Zinc
Secondary: Gold
Tertiary: Copper
Ore: Chalcopyrite, Galena, Malachite, Sphalerite
Gangue: Quartz
Orebody form: TABULAR
Other material: Pyrite
Discovery year: 1875

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
First production started: 1923
Last production ended: 1926

Geology

Host rock:Thaynes Formation;Ankarch Formation
Host type:Shale,Limestone
Associated rock:Crescent Dike
Associated type:Diorite
Structure:Uinta-Cottonwood Arch, Sevier Overthrust Belt, Iron Hollow Syncline, Crescent Fault Zone
Tectonic:Basin And Range-Colorado Plateau Transition Zone, Cordilleran Hinge Line
Alteration processes:Oxidation, Silicification

References

MRDSD012016
DEP10014911
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 OTHERS, 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}
ReporterShubat, Michael A.