CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
2051 United States (Montana) 47.04.48 N -- 112.22.30 W Rogers Pass Cu; Ag
 
Database name: World Sediment-Hosted Cu Deposits
Compilers: R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born
Release date: 2015-01-27
   
Deposit name(s): Rogers Pass
Political location(s): United States; Province or state: Montana; Nearest community: Helena (55 km NW)
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: undifferentiated
Deposit status: occurrence; Status comments: stratabound Cu-Ag mineralization in Spokane quartzite is spotty and low-grade and exhibits simple mineralogy
Geologic province: Cordillera
Commodities: Cu; Ag
Mineralization styles: stratabound
Geological ages: Middle Proterozoic (host rocks)
Host rocks: (1) sedimentary; mudstone-sandstone-siltstone
Host rock stratigraphy:Spokane Formation
Mineralogy: (mineralization): malachite, chalcocite, bornite, covellite
References:
Connor, J.J; McNeal, J.M., 1988
Geochemistry of mineralized quartzite beds in Spokane Formation (Belt Supergroup), Rogers Pass area, Lewi and Clark County, Montana
United States Geological Survey, Bulletin - 17

Connor, J.J., 1980
Geochemistry of a copper-silver-bearing sandstone in the Spokane Formation (Belt Supergroup), Rogers Pass area, western Montana
Abstracts with Programs - Geological Society of America, Volume 12 - 270


Generated 2015-01-27 17:18:23 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada