Mine detail: Galena Mine

Previously called 'Vulcan Mine'

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Location

Lat / long: 47.47957, -115.96382

Resource(M)

Primary: Silver
Secondary: Zinc, Lead, Copper
Tertiary: Gold, Antimony, Uranium
Ore: Tetrahedrite, Chalcopyrite, Galena, Sphalerite
Gangue: Quartz, Siderite, Pyrite, Magnetite, Arsenopyrite
Orebody form: PINCH AND SWELL, STRINGERS
Discovery year: 1885

Production

Operation type: Underground
Deposit type: HYDROTHERMAL VEIN AND REPLACEMENT
Production size: Medium
Development status: Producer
Production years: 1922, 1926-1931, 1937-1938, 1940-1941, 1950-Present (2005)
First production started: 1922

Geology

Host rock:Revett Formation
Host type:Quartzite
Structure:Big Creek Anticline (WNW-trending), deposit within overturned north limb, Osburn Fault, WNW, is 1.5 Mi N., Argentine Fault, N60W 60-70SW, shows normal movement., Polaris Fault, N60W 50-65SW, splays into several branches in eastern part of mine., Vulcan Fault, N68W 95SW, Killbuck Fault, N53W 65NE, shows normal displacement., Wire Silver Fault, bounds the Silver Zone to the west
Tectonic:Belt Basin
Alteration processes:Bleaching of hematite-bearing sediments, Sericitization, Chloritization, Halos of disseminated arsenopyrite extend 6 meters into the wall rock from the veins, probably associated with much more extensive zones of disseminated carbonate.

References

MRDSW026630
DEP10078343
Reference{Deposit:: CAMPBELL, A. B., AND OTHERS, 1961 , GUIDEBOOK TO THE GEOLOGY OF THE COEUR *LENE MINING DISTRICT: IDAHO BUREAU OF MINES & GEOLOGY BULL. 16}{Deposit:: COOK, E. F., 1955 , PROSPECTING FOR URANIUM, THORIUM, AND TUNGSTEN IN IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 102 , 53 P.}{Deposit:: WEIS, P. L., AND OTHERS, 1958 , RECONNAISSANCE FOR RADIOACTIVE MINERALS IN WASHINGTON, IDAHO, AND WESTERN MONTANA, 1952 - 1955 : USGS BULL. 1074 - B, P. 7 - 48}{Deposit:: Chan, Samuel Shu Mou, 1966, Mineralogical and geochemical studies of the vein materials from the Galena mine, Shoshone County, Idaho: Moscow, University of Idaho, PhD dissertation, 251 p.}{Deposit:: Clark, Allen Leroy, 1968, Wall rock alteration and trace element distribution in the Galena mine, Shoshone County, Idaho: Moscow, University of Idaho, PhD dissertation, 140 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, University of Idaho, MS thesis, 97 p.}{Deposit:: Fryklund, V.C., Jr., 1964, Ore deposits of the Coeur *lene district, Shoshone County, Idaho: U.S. Geological Survey Professional Paper 445, 103 p.}{Deposit:: Kesten, S.N., 1963, Geology of the Page and Galena mines, in The Coeur *lene mining district in 1963: Idaho Bureau of Mines and Geology Pamphlet 133, p. 95-98.}{Deposit:: Yates, Martin G., 1987, Geology and geochemistry of the Ag-Cu-Pb deposits in the Galena mine, Coeur *lene district, Idaho: Bloomington, Indiana University, PhD dissertation, 220 p.}{Deposit:: Gordon, Robert E., 1973, Relationship of ore-bearing veins to the geology at the Galena mine, Silver Belt portion of the Coeur *lene district, Shoshone County, Idaho: Paper presented at Pacific Northwest Metals Conference, Spokane, Washington, 19 p.}
ReporterLong, Keith R., Clarke, Donald, Kauffman, John D., Murphy, Lyn S., Miller, Pat J.