Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit sizeL
Orebody formLINEAR
Ore controlInavailability Of Free Oxygen Allowing Ferrous Oxides To Form. Advent Of Photosynthetic Eucaryotic Organisms Releasing O2 2 B.Y. Ago Upset The Oxygen Poor Environment Required For Continued Ferrous Iron Deposition (Garrells, Et Al, 1973).
Materials
Ore mineralsAnkerite, Magnetite, Minnesotaite, Siderite
GangueCalcite, Chert
Geology
Host rockIron Formation · Biwabik Iron Formation
Economic & production
Development statusPast Producer
Identification
Deposit ID10072864
MRDS IDW018561
RegionNA
Data scoreB
Coordinates47.3211, -93.39606
References
MOREY, G.B.,1972. MESABI RANGE; IN; SIMS,P.K. AND MOREY, G.B.,EDS., GEOLOGY OF MINNESOTA; A CENTENNIAL VOLUME,MINN.GEOL.SURV.,P.204-217.WHITE, D.A.,1954. STRATIGRAPHY AND STRUCTURE OF THE MESABI RANGE, MINNESOTA, MINN.GEOL.SURV.BULL.38, 92P.TRETHEWEY, W.D., 1974, UNIV. MINN. BULL., MINING DIRECTORY ISSUE