Mine detail: Silver Summit Mine

Previously called 'Consolidated SilverCoeur *lene Jumbo'

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Location

Lat / long: 47.50177, -116.04463

Resource(M)

Primary: Silver
Secondary: Copper
Tertiary: Antimony, Nickel, Cobalt, Lead, Zinc
Ore: Tetrahedrite, Chalcopyrite
Gangue: Ankerite, Pyrite, Siderite, Quartz, Arsenopyrite
Orebody form: PINCH AND SWELL
Discovery year: 1948

Production

Operation type: Underground
Deposit type: HYDROTHERMAL VEIN AND REPLACEMENT
Production size: Medium
Development status: Past Producer
Production years: 1948-1969
First production started: 1948
Last production ended: 1969

Geology

Host rock:St. Regis Formation
Host type:Quartzite
Associated rock:St. Regis Formation
Associated type:Meta-Argillite
Structure:Silver Syndicate Fault (N45W 70SW) shows left-lateral movement., Polaris Fault (N50W) 50-65SW shows right-lateral movement., Big Creek Anticline - ore deposit within overturned north limb.
Tectonic:Belt Basin
Alteration processes:Bleaching of hematite-bearing quartzite around some veins., Disseminated carbonates form halos around veins.

References

MRDSW000720
DEP10067850
Reference{Deposit:: FRYKLUND, V.C., AND HUTCHINSON, M.W., 1954, THE OCCURRENCE OF COBALT AND NICKEL IN THE SILVER SUMMIT MINE, COEUR *LENE DISTRICT, IDAHO: ECONOMIC GEOLOGY, V. 49, NO.7, P. 753-758.}{Deposit:: VHAY, J.S., 1964, COBALT AND NICKEL, IN MINERAL AND WATER RESOURCES OF IDAHO:U.S. CONG., 88TH, 2ND SESS., P.66-68.}{Deposit:: FRYKLUND, V.C., JR., 1964, ORE DEPOSITS OF THE COEUR*LENE DISTRICT, SHOSHONE COUNTY, IDAHO: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 445, 103 P.}{Deposit:: GRISMER, G.M., AND HUNDHAUSEN, R.J., 1948, METHODS AND COSTS OF SINKING THE SILVER SUMMIT SHAFT, WALLACE, IDAHO, USING A MECHANICAL MUCKING MACHINE: U.S. BUREAU OF MINES INFORMATION CIRCULAR 7425, 12 P.}{Deposit:: Dahl, Mary Katherine, 1981, Structural and stratigraphic control of ore through the Crescent, Sunshine, Silver Summit, Coeur and Galena mines, Coeur *lene mining district, Idaho: Moscow, Univeristy of Idaho, MS thesis, 97 p.}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur *lene mining district, Shoshone County, Idaho, 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}{Reserve-Resource:: Hecla Mining Co., 1980 Annual Report}
ReporterMiller, Pat, Coury, Anny B., Long, Keith R., Schruben, Paul G., Western Field Operations Center