Description
Ernest Shafer & Floyd Mc Clennan
Commodities
PrimaryGold, Silver, Copper
SecondaryLead, Zinc
Commodity typeM
Deposit
Deposit typePolymetallic Replacement
Model72: Polymetallic replacement
Deposit sizeY
Orebody formLENSES
Ore controlBoaz Ore Shoot Is Localized Below The Overthrust, Along The Jefferson-Three Forks Contact
Materials
Ore mineralsCinnabar, Gold, Stibnite, Tetrahedrite
GangueCalcite, Quartz
Geology
Host rockDolomite · Jefferson;Three Forks
StructureKelly Thrust Trends Ne And Dips 45 W. Area Of Tear Faults, Overturning And Tight Folds
AlterationBrecciation
Economic & production
Development statusPast Producer
First production1934
Discovery year1934
Identification
Deposit ID10069277
MRDS IDW002863
Alternate namesShafer Group, Argenta
RegionNA
Data scoreA
Coordinates45.3349, -112.90506
References
GEACH, R.D., 1972, MINES & MINERAL DEPOSITS, BEAVERHEAD CO., MONTANA BUREAU OF MINES & GEOLOGY BULL. 85.MBMG BULL 92.1972 COMPILE M.B.M.G., GEACH, R.D., BULL. 851972 COMPILE M.B.M.G., GEACH, R.D., BULL. 85, SIZE & DIRECTIONAL DATAGEACH, R.D., 1972, MONTANA BUREAU OF MINES & GEOLOGY BULL. 85