Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeM
Orebody formCONGLOMERATE LODE
Ore controlConglomerate bed between amygdaloidal basalt flows
Geology
Host rockConglomerate · Portage Lake Volcanics
StructureFelsic conglomerate
Economic & production
Development statusPast Producer
First production1864
Last production1909
Discovery year1860
Identification
Deposit ID10082609
MRDS IDW060044
Alternate namesAlbany and Boston Conglomerate Lode
RegionNA
Data scoreB
Coordinates47.28889, -88.40449
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PP.WEEGE, R.J., 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., P 19-43.WHITE, 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., VOL. 1, PP. 303-325.WHITE, W.S., CORNWALL, H.R., AND SWANSON, R.W, 1953, BEDROCK GEOLOGY OF THE AHMEEK QUADRANGLE, MICHIGAN: USGS MAP GQ-27, SCALE 1:24000CORNWALL, H.R., AND WRIGHT, J.C., 1956, GEOLOGIC MAP OF THE HANCOCK QUADRANGLE, MICHIGAN: USGS MAP MF-46, SCALE 1:24000.BORNHORST, T.J. AND ROSE, W.I., 1994, SELF-GUIDED GEOLOGICAL FIELD TRIP TO THE KEWEENAW PENINSULA, MICHIGAN; INSTITUTE ON LAKE SUPERIOR GEOLOGY PROCEEDINGS, 40TH ANNUAL MEETING, HOUGHTON MI, V. 40, 185 P.CORNWALL, H.R., 1954, BEDROCK GEOLOGY OF THE DELAWARE QUADRANGLE, MICHIGAN: USGS MAP GQ-51, SCALE 1:24000WHITE, 1968; WEEGE AND POLLACK, 1971.