Commodities
PrimaryLead
Commodity typeM
Deposit
Deposit sizeN
WorkingsUnderground
Ore controlOsburn Fault Zone
Materials
Ore mineralsGalena
GanguePyrite, Quartz, Siderite
Geology
Host rockQuartzite,Argillite · Wallace Formation
StructureA Major Structural Grain Trends Nw And Consists Of Subparallel Faults And Folds. Major Fault Is The Osburn. This Fault Seems To Demarcate A Change In Folding Form With Folds To The North Showing Signs Of More Intense Structural Deformation Than Those To The South, Nw Striking Vertical Fault
Tectonic settingBelt Basin
AlterationHydrothermal Bleaching Is Common Within A Belt Approx 1 Mi Wide. Along The North Side Of The Osburn Fault Zone. It Has Been Used As A Guide To Ore Deposits.
Economic & production
Development statusOccurrence
Identification
Deposit ID10094282
MRDS IDD003856
RegionNA
Data scoreB
Coordinates47.4532, -115.50351
References
WALLACE, R. E. AND HOSTERMAN, J. W., 1956 , RECONNAISSANCE GEOLOGY OF WESTERN MINERAL COUNTY MONTANA: US GEOLOGICAL SURVEY BULL. 1027-M, P. 605 .CALKINS, F. C. AND JONES, E. L. JR., 1914 , ECONOMIC GEOLOGY OF THE REGION AROUND MULLAN, IDAHO, AND SALTESE, MONTANA: US GEOLOGICAL SURVEY BULL. 540 , P. 194 .CROWLEY, F. A., 1960 , DIRECTORY OF KNOWN MINING ENTERPRISES, 1959 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 14 , P. 30 .CROWLEY, F. A., 1962 , DIRECTORY OF KNOWN MINING ENTERPRISES, 1962 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 25 , P. 37 .