Lat / long: | 47.38472, -88.26671 |
Primary: | Copper |
Ore: | Copper |
Orebody form: | FISSURE |
Operation type: | Underground |
Production size: | Small |
Development status: | Past Producer |
First production started: | 1865 |
Last production ended: | 1885 |
Host rock: | Portage Lake Volcanics |
Host type: | Basalt |
Structure: | Fissure at base of Greenstone flow |
MRDS | W060056 |
DEP | 10082619 |
Reference | {Deposit:: BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PP.}{Deposit:: CORNWALL, H.R., 1954, BEDROCK GEOLOGY OF THE PHOENIX QUADRANGLE, MICHIGAN: USGS MAP GQ-34, SCALE 1:24000}{Production:: BUTLER AND BURBANK, 1929} |
Reporter | Nicholson, Suzanne, Sutphin, D.M., Mason Jr., G.T. |