Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Model96: Native Cu
Deposit sizeS
Ore controlStratigraphic-in top few feet of sandstone immediately beneath lake shore trap.
Materials
Ore mineralsCopper, Chalcocite
GangueQuartz, Calcite, Chlorite, Feldspar, Silver
Geology
Host rockSandstone · Copper Harbor Formation
AlterationCopper replacement, sandstone bleaching
Economic & production
Development statusPast Producer
First production1844
Last production1865
Identification
Deposit ID10080395
MRDS IDW031523
RegionNA
Data scoreB
Coordinates46.77778, -89.82093
References
COPPER RANGE CO., UNPUBLISHED, 1968, REDROCK GEOLOGY MAP OF THE CARP RIVER (SE 1/4 QUADRANGLE, ONTONAGON COUNTY, MICHIGAN.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.)BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROF. PAPER 144, 238 P.WILBAND, J.T., 1978, THE COPPER RESOURCES OF NORTHERN MICHIGAN, PREPARED FOR THE U.S. BUREAU OF MINES, CONTRACT NO. J0366067, 66P.JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 102-103, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.