Description
D. V. Erwin And W. J. Corbett
Commodities
PrimaryGold, Copper
SecondarySilver
TertiaryAntimony
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formIRREGULAR
Ore controlContact Of Andesite With Dolomite In One Case Fractures Within Andesite In The Other
Geology
Host rockDolomite · Jefferson;Three Forks
Associated rockAndesite
StructureEast Flank Of Humbolt Mountain Anticline, Fracture Zone Containing Ore Of No. 19 Mine
Tectonic settingNear Pioneer Batholith
AlterationStrong Alteration Of Dolomite No. 2 Mine, See N85
Economic & production
Development statusPast Producer
First production1932
Discovery year1926
Identification
Deposit ID10089450
MRDS IDW026526
Alternate namesErmont No. 2 Ermont No. 19
RegionNA
Data scoreB
Coordinates45.26601, -112.91506
References
KELLY, J.L., 1941 M.S. THESIS, MT SCHOOL OF MINES.MBMG BULL 85, P. 48.MBMG BULL 6, P. 69-70.GEACH, RD, 1972 , MINES AND MINERAL DEPOSITS (EXCEPT FUELS) BEAVERHEAD CO., MONT.