Lat / long: | 46.46111, -90.11289 |
Primary: | Iron |
Ore: | Hematite, Goethite |
Orebody form: | STRATABOUND |
Discovery year: | 1848 |
Operation type: | Unknown |
Deposit type: | Banded Iron-Rich Sedimentary Deposits |
Production size: | Medium |
Development status: | Past Producer |
Production years: | 1887 TO JAN 1965. |
First production started: | 1887 |
Last production ended: | 1965 |
Host rock: | Ironwood Iron-Formation |
Host type: | Iron Formation |
Structure: | N-dipping sediments; regional trends are east to west., An E-W linear iron formation going from Gogebic, MI, to Ironwood,MI, and to |
Alteration processes: | Gogebic iron range is in the chlorite metamorphic zone in the least metamorphosed area of the upper peninsula. |
MRDS | W062006 |
DEP | 10082657 |
Reference | {Deposit:: SCHMIDT, 1980: USGS BULLETIN 1460.}{Deposit:: JOHNSON, A.M., AND GROTH, E.H.,1998, INVENTORY OF UNDERGROUND MINE, GOGEBIC COUNTY, P. 69-81, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}{Production:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, P. 55; REED, 1975.} |
Reporter | Sutphin, D.M. (Cannon, W.F.), Mason Jr., G.T., Anderson, Arlene (M. Gere) |