Mine detail: Montana Phosphate District

Previously called 'Brock MineCentennial Mine'

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Location: Montana, United States, North America
Lat / long: 45.6249, -112.75089
dep_id: 60000655
mrds_id: ISM0337
Commodity type: nonmetallic
Major mineral: Phosphorus-Phosphates
Operation type: Unknown
Deposit type: CHEMICAL SEDIMENT, MARINE
Production size: Production occurred
Development status: Producer
Structure: CHERT, BLACKSHALE, PHOSPHORITE FACIES
Year first produced: 1929
disc_yr: 1921
References:
  • Deposit:: POPOTT, C.C. AND SERVICE, A.L., 1965: U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 6611, P.146
  • Deposit:: CATHCART, J.B., SHELDON, R.P., AND GULBRANDSEN, R.A., 1983: U.S. GEOLOGICAL SURVEY CIRCULAR 888
  • Deposit:: CRESOMEN, E.R. AND SWANSON, R.W. 1967: U.S. GEOLOGICAL SURVEY, PROFESSIONAL PAPER 313-C
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