| Deposit ID | 10082638 |
|---|---|
| MRDS ID | W060076 |
| Record type | Site |
| Current site name | G-12 |
| Geographic coordinates: | -88.0792, 47.37917 (WGS84) |
|---|---|
| Relative position | NEAR GRATIOT MOUNTAIN |
Political divisions (FIPS codes)
Keweenaw(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Delaware(quadrangle 1:24,000 scale)
Hancock(quadrangle 1:100,000 scale)
Hancock C(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Keweenaw Peninsula(hydrologic unit)
Southcentral Lake Superior(hydrologic accounting unit)
Southern Lake Superior(hydrologic subregion)
Great Lakes(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Michigan | Keweenaw |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Michigan | 058N | 030W | 35 | Michigan |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Chalcocite | Ore |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt | ||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| (1) | -88.0792, 47.37917 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Andesite-dacite dike cross cutting an amygdaloidal flow top (dipping 45 deg |
| Development status | Prospect |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discoverer | Homestake Keweenaw venture |
| District name | Keweenaw Copper |
|---|
| Type | Owner |
|---|---|
| Owner | Michigan Copper Company Ltd |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1995 | ||||||||||||||
| Reserves | 2 | ||||||||||||||
| |||||||||||||||
MICHIGAN COPPER COMPANY LTD, 19 ---, MICHIGAN COPPER SULFIDE PROJECT: KEWEENAW PENINSULA: COMPANY REPORT, 21 PP.
MICHIGAN COPPER COMPANY LTD REPORT
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1995 | Nicholson, Suzanne | U.S. Geological Survey | |
| Updater | 01-MAR-1997 | Sutphin, D.M. | U.S. Geological Survey | |
| Editor | 01-MAY-1997 | Mason Jr., G.T. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.