Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Model241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Deposit sizeS
Ore controlStructural-footwall quartzite and cross-cutting dikes form ore troughs
Materials
Ore mineralsHematite
GangueChert, Pyrite, Martite
Geology
Host rockIron Formation · Ironwood Iron-Formation
AlterationChert to hematite
Economic & production
Development statusPast Producer
First production1950
Last production1951
Identification
Deposit ID10079771
MRDS IDW030498
RegionNA
Data scoreB
Coordinates46.47972, -89.88177
References
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO, P. 60.PRINZ, W.L., HUBBARD, H.A., 1975, PRELIMINARY MAP OF THE WAKEFIELD QUADRANGLE, GOGEBIC COUNTY, MICHIGAN. GEOLOGICAL SURVEY DIVISION OF THE MICHIGAN DEPT. OF NATURAL RESOURCES, LANSING, MICHIGAN.JOHNSON, A.M., AND GROTH, E.H., A., 1998, INVENTORY OF UNDERGROUND MINES, GOGEBIC COUNTY, P. 253-255, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.