Commodities
PrimaryIron
TertiaryManganese
Commodity typeM
Deposit
Model241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Deposit sizeS
Orebody formLINEAR TO IRREGULAR
Materials
Ore mineralsHematite, Magnetite
GangueChert
Geology
Host rockIron Formation · Trommald Formation
Economic & production
Development statusPast Producer
Identification
Deposit ID10072904
MRDS IDW018618
RegionNA
Data scoreB
Coordinates46.45193, -92.75742
References
SCHMIDT, R.G.,1963. GEOLOGY AND ORE DEPOSITS OF THE CUYUNA NORTH RANGE, MINNESOTA, U.S.GEOL.SURV.,PROF.PAPER 407, 96P.GROUT, F.F. AND WOLFF, J.F.,SR.,1955. THE GEOLOGY OF THE CUYUNA DISTRICT, MINNESOTA, MINN.GEOL.SURV.BULL. 36, 144P.GROSS, G.A., 1984, ENRICHED IRON FORMATION, IN ECKSTRAND, O.R., ED., CANADIAN MINERAL DEPOSIT TYPES--A GEOLOGICAL SYNOPSIS: GEOLOGICAL SURVEY OF CANADA ECONOMIC GEOLOGY REPORT 36 , P. 20.TRETHEWEY, W.D., 1974, UNIV. MINN. BULL., MINING DIRECTORY ISSUE