Location: | Keweenaw County, Michigan, United States, North America |
Lat / long: | 47.305, -88.35866 |
dep_id: | 10082872 |
mrds_id: | W062236 |
Commodity type: | metallic |
Major mineral: | Copper |
Minor mineral: | Silver |
Operation type: | Unknown |
Deposit type: | Lode |
Production size: | Medium ammount of material produced |
Development status: | Past Producer |
ore: | Copper |
gangue: | Feldspar, Epidote, Quartz, Calcite |
orebody_fm: | TABULAR |
model: | 96: Native Cu |
conc_proc: | Secondary enrichment by hydrothermal fluids |
ore_ctrl: | Amygdaloidal basalt flow top |
Reporter: | Sutphin, D.M. (Cannon, W.F.), Mason Jr., G.T. |
hrock_unit: | Kearsarge Amygdaloid, Portage Lake Volcanics |
hrock_type: | Basalt |
Year first produced: | 1900 |
yr_lst_prd: | 1931 |
prod_yrs: | 1900-1901 PRODUCED MOHAWKITE; 1902-1925 AND LATER PRODUCED COPPER. |
References: |
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