Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeS
Ore controlUpward facing or open structures of folding or faulting
Materials
Ore mineralsHematite, Grunerite, Limonite
GangueChert, Magnetite, Hornblende, Actinolite, Garnet, Mica
Geology
Host rockIron Formation · Bijiki Iron-Formation
AlterationReplacement of cherty beds by iron oxide and alteration of fe-silicates and carbonates to iron oxides
Economic & production
Development statusPast Producer
Production yearsMINE CLOSED IN1957 AND REMAINED SHUT DOWN THROUGH 1958 AND 1959; THE MINE REOPENED IN 1960, BUT WAS IDLE IN 1962.
Last production1961
Identification
Deposit ID10079317
MRDS IDW028538
Alternate namesBeaufort, Norwood
RegionNA
Data scoreB
Coordinates46.53667, -88.16226
References
KLASNER, J. S., AND CANNON, W. F., 1978 , BEDROCK GEOLOGY OF THE SOUTHERN PART OF THE MICHIGAMME AND THREE LAKES QUADRANGLES, MARQUETTE AND BARAGA COUNTIES, MICHIGAN, USGS MAP 1 - 1078 .LAKE SUPERIOR IRON ORE ASSOCIATION, 1952 , LAKE SUPERIOR IRON ORE (2ND ED ): CLEVELAND, OHIO, P. 87 .CROWELL, BENEDICT, AND MURRAY, C. B., INC., 1911 , THE IRON ORES OF LAKE SUPERIOR ( 1ST ED. ): CLEVELAND, OHIO, P. 65 .SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND-CLIFFS IRON CO., 1951 , MAP OF OHIO MINE AND VICINITY; 1950 - 1951 , OHIO MINE EXPLORATION, GEOLOGICAL SURVEY DIVISION OF THE MICHIGAN DEPT. OF NATURAL RESOURCES.U.S. BUREAU OF MINES, 1954-1994, MINERALS YEARBOOK [1953-1993]: WASHINGTON, D.C., U. S. GOVERNMENT PRINTING OFFICE, VARIOUS VOLUMES.JOHNSON, A, 1998, INVENTORY OF UNDERGROUND MINES, BARAGA COUNTY, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.