Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeS
Ore controlStructurally controlled
Materials
GangueQuartz, Chert, Mica, Garnet, Actinolite
Geology
Host rockIron Formation
AlterationChert to hematite & magnetite in oxidation zones.
Economic & production
Development statusPast Producer
Identification
Deposit ID10079310
MRDS IDW028528
Alternate namesMetropolis, Metropolitan
RegionNA
Data scoreB
Coordinates46.41333, -88.0142
References
SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND - CLIFFS IRON CO., 1953 , METROPOLIS MINE EXPLORATION, SECTION FILES OF GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES, LANSING, MICHIGAN.LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED ): CLEVELAND, OHIO, P. 87 .KLASNER, J. S., CANNON, W. F., 1976 , GEOLOGIC MAP AND GEOPHYSICAL INTERPRETATION OF THE WITCH LAKE QUADRANGLE, MARQUETTE, IRON AND BARAGA COUNTIES, MICHIGAN: US GEOLOGICAL SURVEY, MISCELLANEOUS INVESTIGATIONS SERIES, MAP I-987 .