| Deposit ID | 10082618 |
|---|---|
| MRDS ID | W060055 |
| Record type | Site |
| Current site name | Drexel Fissure |
| Geographic coordinates: | -88.11671, 47.425 (WGS84) |
|---|
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 | 16 | NW OF SE | Michigan |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Copper | Ore |
| Model code | 96 |
|---|---|
| USGS model code | Unassigned |
| Deposit model name | Native Cu |
| Mark3 model number | 99 |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt | ||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| (1) | -88.11671, 47.425 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Just south of Greenstone flow |
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Keweenaw Copper |
|---|
| Year | 1878 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1860-1878 | ||||||||||||||
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PP.
CORNWALL, H.R., 1954, BEDROCK GEOLOGY OF THE DELAWARE QUADRANGLE, MICHIGAN: USGS MAP GQ-51, SCALE 1:24000
BUTLER AND BURBANK, 1929
| 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.