Michigan · Ontonagon County
Past Producer

White Pine Mine

Ontonagon County, Michigan, United States
CopperSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper
SecondarySilver
Commodity typeM
Deposit
Deposit typeDisseminated, Clastic Sedimentary Rock;
Model197: Sediment-hosted Cu
Deposit sizeL
Orebody formTABULAR
Ore controlLithology; faulting; stratigraphic control is seen in sandstone and permeable shale near the base of the formation. there are also small fissure veins.
Materials
Ore mineralsChalcocite, Copper, Silver
GangueQuartz, Feldspar, Epidote, Chlorite, Tourmaline, Apatite, Mica
Geology
Host rockShale,Siltstone,Sandstone · Nonesuch Formation
Associated rockSandstone · Copper Harbor Formation
StructureIron River syncline, White Pine anticline cuts through mine
AlterationCopper replacement, sandstone bleaching
Economic & production
Development statusPast Producer
Production years1879-1881;1915-1920;1953-1995 (DUE TO CLOSE 9/30/95)
First production1945
Last production1995
Discovery year1937
Identification
Deposit ID10069203
MRDS IDW002687
Alternate names(New) White Pine Mine
RegionNA
Data scoreA
Coordinates46.74361, -89.53398
References
COPPER RANGE CO., UNPUBLISHED 1968, BEDROCK GEOLOGY MAP OF THE WHITE PINE (SE 1/4) QUADRANGLE, ONTONAGON COUNTY, MICHIGAN.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, 66 P.STATE OF MICHIGAN TAX COMMISSION, 1946-1974, APPRAISAL OF IRON AND COPPER MINES OF MICHIGAN; COMPILSTATE OF MICHIGAN TAX COMMISSION, 1946-1974, APPRAISAL OF IRON AND COPPER MINES OF MICHIGAN; COMPILED ANNUALLY BY THE STATE TAX COMMISSION AND THE DEPARTMENT OF CONSERVATION, LOCATED AT THE GEOLOGICAL SURVEY DIVISION OF THE DEPARTMENT OF NATURAL RESOURCES, LANSING, MICHIGAN.MAUK,J.L., BROWN, A.C., SEASOR, R.W., AND ELDRIDGE, C.S., 1992, GEOLOGY AND STABLE ISOTOPE AND ORGANIC GEOCHEMISTRY OF THE WHITE PINE SEDIMENT-HOSTED STRATIFORM COPPER DEPOSIT: IN T.J. BORNHORST, (EDITOR) KEWEENAWAN COPPER DEPOSITS OF WESTERN UPPER MICHIGAN: GUIDEBOOK FOR THE SOC. ECON. GEOL., FIELD CONF. OCT. 20-23, 1992, GUIDEBOOK SERIES, VOL. 13, P. 63-99.JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 261-264, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.1992 ESTIMATES ARE FROM MAUK AND OTHERS, 1992.