Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Orebody formFISSURE
Geology
Host rockBasalt · Portage Lake Volcanics
StructureFissure in amygdaloidal basalt
Economic & production
Development statusPast Producer
Production yearsPRIOR TO 1850
Identification
Deposit ID10082646
MRDS IDW060084
RegionNA
Data scoreC
Coordinates48.09167, -88.58338
References
LANE, A.C., 1898, UPPER PENINSULA, ISLE ROYALE: GEOLOGICAL SURVEY OF MICHIGAN, V.6.,PT. 1, 281 PP.HUBER, N.K., 1973, GEOLOGIC MAP OF ISLE ROYALE NATIONAL PARK, KEWEENAW COUNTY, MICHIGAN: USGS MISC. GEOL. INVEST., MAP I-796, SCALE 1:62500