Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeM
Orebody formCONGLOMERATE LODE
Ore controlConglomerate bed
Geology
Host rockConglomerate · Portage Lake Volcanics
StructureFelsic conglomerate
Economic & production
Development statusPast Producer
First production1943
Last production1968
Identification
Deposit ID10082611
MRDS IDW060046
RegionNA
Data scoreB
Coordinates47.29444, -88.40005
References
BRODERICK, T.M., HOHL, C.D., AND EIDEMILLER, H.N., 1946, RECENT CONTRIBUTIONS TO THE GEOLOGY OF THE MICHIGAN COPPER DISTRICT: ECON. GEOL. V. 41, P. 675-725WHITE, W.S., CORNWALL, H.R., AND SWANSON, R.W., 1953, BEDROCK GEOLOGY OF THE AHMEEK QUADRANGLE, MICHIGAN: USGS MAP GQ-27, SCALE 1:24000WHITE, W.S., 1968, THE NATIVE COPPER DEPOSITS OF NORTHERN MICHIGAN: IN J.D. RIDGE, (EDITOR), ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOL), AM. INSTIT. MIN. METALL. PETROL. ENG., V. 1, P. 303-325.WEEGE, RJ., AND POLLACK, J.P., 1971, RECENT DEVELOPMENTS IN THE NATIVE COPPER DISTRICT OF MICHIGAN: IN W.S. WHITE, (EDITOR) GUIDEBOOK FOR FIELD CONFERENCE, MICHIGAN COPPER DISTRICT, SEPT. 30-OCT. 2, 1971, SOC. ECON. GEOL. , 19-43.WEEGE AND POLLACK, 1971; WHITE, 1968