Commodities
PrimaryPhosphorus-Phosphates
Commodity typeN
Deposit
Deposit typeCHEMICAL SEDIMENT, MARINE
Deposit sizeY
Geology
StructureCHERT, BLACKSHALE, PHOSPHORITE FACIES
Economic & production
Development statusProducer
First production1929
Discovery year1921
Identification
Deposit ID60000655
MRDS IDISM0337
Alternate namesBrock Mine, Centennial Mine
RegionNA
Data scoreD
Coordinates45.6249, -112.75089
References
POPOTT, C.C. AND SERVICE, A.L., 1965: U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 6611, P.146CATHCART, J.B., SHELDON, R.P., AND GULBRANDSEN, R.A., 1983: U.S. GEOLOGICAL SURVEY CIRCULAR 888CRESOMEN, E.R. AND SWANSON, R.W. 1967: U.S. GEOLOGICAL SURVEY, PROFESSIONAL PAPER 313-C