Commodities
PrimarySilver, Copper, Zinc, Lead
SecondaryGold
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR, LENSES
Ore controlVeins Located In Footwall, Resemble Feather Fractures Caused By Displacement Along The Fault
Materials
Ore mineralsCopper, Galena, Sphalerite
Geology
Host rockLimestone · Madison Limestone;Quartzite (Hanging Wall)
StructureEastward Thrust Faulting, Fault Zone (Polaris Fault) Strikes N 60 Deg E And Dips Approximately 45 To 60 Degrees Nw.
AlterationLimestone Country Rock Is Altered
Economic & production
Development statusPast Producer
First production1884
Discovery year1883
Identification
Deposit ID10078275
MRDS IDW026529
Alternate namesSilver Fissure
RegionNA
Data scoreB
Coordinates45.36683, -113.08589
References
MBMG BULL 85, P. 120-123.USGS BULL 574, P. 76.LAWSON, D.C., 1977, DIRECTORY OF MINING ENTERPRISES, 1976: MT. BUREAU OF MINES AND GEOL., BULL. 103, P. 3.1914 RECON WINCHELL, A.N., U.S.G.S. BULL. 5741972 COMPILE M.B.M.G. BULL. 85GEACH, R. D., 1972 , MINES AND MIN DEPOSITS (EXCEPT FUELS) BEAVERHEAD CO., MONT, P. 179