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Porter Mine (Amasa Porter Mine), Amasa, Menominee iron range, Iron Co., Michigan, USA
Latitude: 46°11'57"N
Longitude: 88°24'39"W
Longitude: 88°24'39"W
Deposit Type: Banded Iron-Rich Sedimentary Deposits
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock Unit: Vulcan Iron Formation
Host Rock: Iron Formation
An iron mine operated first by Nevada Mining Co., and later by Hemlock River Mining Co, during 1914 through 1927. 733,327 tons of ore were shipped from workings that reached 850 feet depth. The mine exploited the middle-Precambrian Amasa Iron Formation of the Baraga Group. The property description is N1/2-NE and SE-NE Sec. 22 T44N-R33W, which is 120 acres between N46º11'58", N46º12'11", W88º24'32", and W88º25'9", and between N46º11'45", N46º11'58", W88º24'31", and W88º24'50".
Mineral List
| Goethite | Hematite | Magnetite | Quartz |
4 entries listed. 4 valid minerals.
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References
Bernhardt M. (2001) (editor) "Men, Mines, and Memories", Iron County Museum, Caspian, Michigan.
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES, 2D ED.: CLEVELAND, OHIO, LAKE SUPERIOR IRON ORE ASSOCIATION, 334 P.
BAYLEY, R.W., AND OTHERS, 1966, GEOLOGY OF THE MENOMINEE IRON-BEARING DISTRICT, MICHIGAN AND WISCONSIN.
LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL REPORT, PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952.
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES, 2D ED.: CLEVELAND, OHIO, LAKE SUPERIOR IRON ORE ASSOCIATION, 334 P.
BAYLEY, R.W., AND OTHERS, 1966, GEOLOGY OF THE MENOMINEE IRON-BEARING DISTRICT, MICHIGAN AND WISCONSIN.
LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL REPORT, PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952.
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Locality Updated: Cazadero river, Ovalle, Limarí Province, Coquimbo Region, ChileFrom David Von Bargen, 19th Jun 2013 18:19:30