Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit sizeL
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
AlterationMetamorphism In East Mesabi Range. French (1973) Identified Three Distinct Mineral Assembleges Related To Temperature And Pressure Conditions.
Economic & production
Development statusProducer
Identification
Deposit ID10107386
MRDS IDW031983
RegionNA
Data scoreB
Coordinates47.45999, -92.95855
References
U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM: U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95, ISO 9960 STANDARD CD-ROM