Description
Theodore Jacobi and Robert Skivington
Commodities
PrimaryLead, Silver
SecondaryZinc
TertiaryCopper, Gold
Commodity typeM
Deposit
Deposit typeHYDROTHERMAL VEIN AND REPLACEMENT
Model{85: Polymetallic veins}
Deposit sizeM
WorkingsUnderground
Orebody formPINCH AND SWELL
Ore control"Mineralized zone bounded to west by Marsh and Oreano Faults, and to the east by the Swan Fault.", "Rake of orebodies parallels fault and vein intersections.", "Sherman vein consists of partly oxidized lead ores in fractures in quartzite with little gangue; grade increases as bedding flattens."
Materials
Ore mineralsChalcopyrite, Galena, Sphalerite, Pyromorphite
GangueCalcite, Magnetite, Pyrite, Pyrrhotite, Quartz
Geology
Host rockQuartzite · Burke Formation
Associated rockMeta-Argillite · Prichard Formation
Tectonic setting"Belt Basin"
Alteration"Green Biotite"
Economic & production
Development statusPast Producer
Production years1927-1931, 1937-1960, 1963-1967, 1969-1970
First production1927
Last production1970
Discovery year1887
Identification
Deposit ID10078356
MRDS IDW026648
Alternate namesOreano Mine, Union Mine
RegionNA
Data scoreA
Coordinates47.52497, -115.82242
References
{Deposit:: Hobbs, S. W., And Others, 1965 , Geology Of The Coeur D'Alene District, Shoshone County, Idaho: USGS Prof. Paper 478 , 139 P.}{Deposit:: FRYKLUND, V. C., JR., 1964 , ORE DEPOSITS OF THE COEUR D'ALENE DISTRICT, SHOSHONE COUNTY, IDAHO: USGS PROF. PAPER 445 , 103 P.}{Deposit:: Hollister, V.F., 1950, File memo, Sherman mine, Shoshone County, Idaho. [USGS Hollister Files, Spokane, Washington]}{Deposit:: Shenon, P.J., Full, R.P., and Gerwels, R.P., 1952, Geologic study of the Wallace-Burke-Mullan Area, Lelande and Hunter mining districts, Shoshone County, Idaho, 81 p. [Idaho Geological Survey Files]}{Deposit:: Day, H.L., 1926, Report on Sherman Lead Co. to Jerome J. Day, 8 p. [Univeristy of Idaho, Special Collections, Day Mines Files]}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur d'Alene mining district, Shoshone County, Idaho, 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}