Mine detail: Imperial Mine (Wetmore)

Previously called 'Farm Wetmore'

<< Back to the map

Location

Lat / long:

46.53083, -88.13254

Resource(M)

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

Production

Operation type:	Underground
Deposit type:	Secondary Enrichment
Production size:	Small
Development status:	Past Producer
First production started:	1882
Last production ended:	1933

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

MRDS	W028542
DEP	10106105
Reference	{Deposit:: KLASNER, J. S., AND CANNON, W. F., 1978 , BEDROCK GEOLOGY MAP OF THE SOUTHERN PART OF THE MICHIGAMME AND THREE LAKES QUADRANGLES, MARQUETTE AND BARAGA COUNTIES, MICHIGAN, USGS MAP 1 - 1078 .}{Deposit:: CROWELL, BENEDICT, AND MURRAY, C. B., INC. ( 1911 , 1914 , 1917 , 1920 , 1924 , 1927 , 1930 ), THE IRON ORES OF LAKE SUPERIOR ( 1ST - 7TH EDS. ): CLEVELAND, OHIO, PGS. 54 , 228 , 289 , 261 , 308 , 337 , 306 , RESPECTIVELY.}{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED. ): CLEVELAND, OHIO, P. 108 .}{Deposit:: HANNA, T. A., 1902 , STATE OF MICHIGAN MINES AND MINERAL STATISTICS, MARQUETTE, MICHIGAN, P. 78 .}{Deposit:: JOHNSON, A, 1998, INVENTORY OF UNDERGROUND MINES, BARAGA COUNTY, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}
Reporter	Anderson, Arlene (M. Gere), Yeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T.