Mine detail: Lafayette Mine

Previously called ''

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Location

Lat / long: 46.77778, -89.82093

Resource(M)

Primary: Copper
Ore: Copper, Chalcocite
Gangue: Quartz, Calcite, Chlorite, Feldspar, Silver

Production

Operation type: Underground
Deposit type: Secondary Enrichment
Production size: Small
Development status: Past Producer
First production started: 1844
Last production ended: 1865

Geology

Host rock:Copper Harbor Formation
Host type:Sandstone
Alteration processes:Copper replacement, sandstone bleaching

References

MRDSW031523
DEP10080395
Reference{Deposit:: COPPER RANGE CO., UNPUBLISHED, 1968, REDROCK GEOLOGY MAP OF THE CARP RIVER (SE 1/4 QUADRANGLE, ONTONAGON COUNTY, MICHIGAN. GEOLOGY MAPPED AND COMPILED BY COPPER RANGE EXPLORATION CO., INC., AND BY H. HUBBARD (U.S.G.S.)}{Deposit:: BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROF. PAPER 144, 238 P.}{Deposit:: WILBAND, J.T., 1978, THE COPPER RESOURCES OF NORTHERN MICHIGAN, PREPARED FOR THE U.S. BUREAU OF MINES, CONTRACT NO. J0366067, 66P.}{Deposit:: JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 102-103, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}
ReporterYeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)