Location: | Keweenaw County, Michigan, United States, North America |
Lat / long: | 47.42417, -88.19976 |
dep_id: | 10106399 |
mrds_id: | W062196 |
Commodity type: | metallic |
Major mineral: | Copper |
Operation type: | Unknown |
Production size: | Small ammount of material produced |
Development status: | Past Producer |
ore: | Copper |
gangue: | Calcite, Quartz, Datolite, Epidote, Pumpellyite-(Mg) |
orebody_fm: | FISSURE |
model: | 96: Native Cu |
ore_ctrl: | Fissure |
Reporter: | Sutphin, D.M., Mason Jr., G.T., Sutphin, D.M. (Cannon, W.F.) |
hrock_unit: | Portage Lake Volcanics, Ashbed Amygdaloid |
hrock_type: | Andesite |
Year first produced: | 1861 |
yr_lst_prd: | 1884 |
prod_yrs: | 1861-70, 1872-77, 1881, 1882, 1884 |
References: |
- 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., AND WRIGHT, J.C., 1954, BEDROCK GEOLOGY OF THE EAGLE HARBOR QUADRANGLE, MICHIGAN: U.S. GEOLOGICAL SURVEY, GEOLOGIC QUADRANGLE MAPS OF THE UNITED STATES, GQ 36, 1:24,000.
- Production:: BUTLER AND BURBANK, 1929, P. 78.
|