Deposit
Model96: Native Cu
Deposit sizeS
Orebody formFISSURE
Ore controlFissure
Materials
Ore mineralsCopper
GangueCalcite, Prehnite, Quartz, Datolite, Laumontite, Epidote, Chlorite
Geology
Host rockPortage Lake Volcanics
Economic & production
Development statusPast Producer
Production years1864-67
First production1864
Last production1867
Identification
Deposit ID10082838
MRDS IDW062195
RegionNA
Data scoreB
Coordinates47.43417, -87.92781
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.CORNWALL, H. R., 1954, BEDROCK GEOLOGY OF THE LAKE MEDORA QUADRANGLE, MICHIGAN: U.S. GEOLOGICAL SURVEY, GEOLOGIC QUADRANGLE MAPS OF THE UNITED STATES, GQ 52, 1:24,000.BUTLER AND BURBANK, 1929, P. 76.