Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Orebody formFISSURE
Geology
Host rockBasalt · Portage Lake Volcanics
StructureFissure cutting Greenstone flow
Economic & production
Development statusPast Producer
First production1846
Last production1863
Identification
Deposit ID10082620
MRDS IDW060057
Alternate namesNorth American Fissure
RegionNA
Data scoreB
Coordinates47.36944, -88.31671
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PPDAVIDSON, E.S., ESPENSHADE, G.H., WHITE, W.S., AND WRIGHT, J.C., 1955, BEDROCK GEOLOGY OF THE MOHAWK QUADRANGLE, MICHIGAN: USGS MAP GQ-54, SCALE 1:24000