Commodities
PrimaryManganese
TertiaryLead, Zinc, Silver, Molybdenum, Gold, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR
Ore controlFault Zones And Fractures Filled
Materials
Ore mineralsGalena, Molybdenite, Rhodochrosite, Sphalerite
GanguePyrite, Quartz, Tourmaline
Geology
StructureBoulder Batholith, One Major Cross Fault, East - West Fault System, Northwest Fault System, Northeast Fault System
AlterationSericitization, Chloritization, Minor Silicification, Pyritization
Economic & production
Development statusPast Producer
Identification
Deposit ID10078302
MRDS IDW026571
RegionNA
Data scoreB
Coordinates46.01879, -112.58006
References
HO, AU - N60C, 1957 , GEOLOGY AND ORE DEPOSITS OF THE NORWICH MINE, SILVER BOW COUNTY, MONTANA, MASTERS THESIS, MONTANA SCHOOL OF MINES (MONTANA TECH). VOLS. 1 AND 2COLE, J. W., 1951 , INVESTIGATION OF THE NORWICH MANGANESE DEPOSIT, SILVER BOW COUNTY, MONT: U. S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4784 , 14 P.COLE, J.W., 1951, INVESTIGATION OF THE NORWICH MANGANESE DEPOSIT, SILVER BOW COUNTY, MONTANA: U.S. BUREAU OF MINES REPORT OF INVESTIGATION NO. 4784, 14 P.1951 DIREXPL U. S. BUREAU OF MINE