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 in oxidation zones
Economic & production
Development statusPast Producer
Identification
Deposit ID10079774
MRDS IDW030502
RegionNA
Data scoreB
Coordinates46.47361, -89.96566
References
CROWELL, BENEDICT, AND MURRAY, L.B., INC., 1920, THE IRON ORES OF LAKE SUPERIOR (4TH ED.): CLEVELAND, OHIO. PP. 207-208.PRINZ, W.C., 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.