Mine detail: Sherwood Mine

<< Back to the map

<< Back to browsing

Location: Iron County, Michigan, United States, North America
Lat / long: 46.10944, -88.64005
dep_id: 10068376
mrds_id: W001403
Commodity type: metallic
Major mineral: Iron
Operation type: Unknown
Deposit type: Secondary Enrichment
Production size: Large ammount of material produced
Development status: Past Producer
ore: Hematite, Goethite, Limonite
gangue: Chert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica, Clay
work_type: Underground
model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
alteration: Chert and siderite to hematite (goethite, limonite) in oxidation zones.
conc_proc: Siderite altered to hematite or*imonit* further enriched by removal of chert
ore_ctrl: Stratigraphically controlled
Reporter: Cannon, Suzanne S., Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)
hrock_unit: Negaunee Iron-Formation
hrock_type: Iron Formation
arock_unit: Stambaugh Formation, Hiawatha Graywacke, Dunn Creek Slate
Structure: Major troughs; regional trends: E-W, NE-SW, NW-SE, forming triangle., Troughs into which Iron formation has slumped.
Year first produced: 1931
yr_lst_prd: 1979
References:
  • Deposit:: JAMES, H. L., ET. AL., 1968, U. S. G. S. PROF. PAPER 570
  • Deposit:: JAMES, H. L., 1955, ZONES OF REGIONAL METAMORPHISM IN THE PRECAMBRIAN OF NORTHERN MICH., G. S. A. BULL., V. 66, P. 1455-1488.
  • Deposit:: DUTTON, C. E., P. W. ZIMMER, 1968, IRON ORE DEPOSITS - MENOMINEE DIST., MICH., IN ORE DEP. U. S. 1933-1967, THE GRATON-SALES VOL., J. D. RIDGE, ED., V. 1, P. 538-549.
  • Deposit:: JAMES, H.L., DUTTON, C.E., PETTIJOHN, F.J., WIER, K.L., 1968, GEOLOGY AND ORE DEPOSITS OF THE IRON RIVER, CRYSTAL FALLS DISTRICT, IRON COUNTY, MICHIGAN. WASHINGTON, U.S. GOVT. PRINTING OFFICE, 1968. PP. 45-56, 88-110.
  • Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO. P. 122.
  • Deposit:: REED, R.C., 1975, ONE THOUSAND MILLION TONS, MICHIGAN IRON ORE SHIPMENTS THROUGH 1974, CIRCULAR 12, GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES, LANSING, MICHIGAN, 1975. P. 9.
  • Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 302-306, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
  • Production:: LAKE SUPERIOR IRON ORES, 1952, P. 122.; SKILLINGS, MAY 1972, V. 61, N. 22, P. 15 AND JUNE 1971, V. 60, N. 26, P. 119.; SKILLINGS, JAN. 27, 1973, V. 62, NO. 4, P. 14
© 2010-2018 Lee C. Baker unless noted. All rights reserved.