Mine detail: Beaufort Mine

Previously called ''

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Location

Lat / long: 46.54167, -88.17893

Resource(M)

Primary: Iron
Ore: Limonite, Grunerite
Gangue: Chert, Magnetite, Hornblende, Actinolite, Garnet, Mica

Production

Operation type: Surface
Deposit type: Secondary Enrichment
Production size: Small
Development status: Past Producer
First production started: 1882
Last production ended: 1905

Geology

Host rock:Bijiki Iron-Formation
Host type:Iron Formation
Alteration processes:Replacement of cherty beds by iron oxide and alteration of fe-silicates and carbonates to iron oxides

References

MRDSW028533
DEP10106102
Reference{Deposit:: HANNA, T. A., 1902 , STATE OF MICHIGAN MINES AND MINERAL STATISTICS, MARQUETTE, MICHIGAN, P. 76 .}{Deposit:: 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 .}{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED. ): CLEVELAND, OHIO, P. 102 .}{Deposit:: SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND-CLIFFS IRON CO., OHIO MINE EXPLORATION, 1950 - 1951 , SECTION FILES OF THE GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES.}{Deposit:: JOHNSON, AL, 1998, INVENTORY OF UNDERGROUND MINES, BARAGA COUNTY, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}
ReporterYeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)