| Deposit ID | 10082862 |
|---|---|
| MRDS ID | W062224 |
| Record type | Site |
| Current site name | Atlantic Mine |
| Alternate or previous names | South Pewabic |
| Geographic coordinates: | -88.62755, 47.09972 (WGS84) |
|---|
Political divisions (FIPS codes)
Houghton(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
South Range(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 | Houghton |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 54N | 34W | 3, 4, 9 | Michigan |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Copper | Ore |
| Feldspar | Gangue |
| Epidote | Gangue |
| Quartz | Gangue |
| Calcite | Gangue |
| Pumpellyite-(Mg) | Gangue |
| Datolite | Gangue |
| 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) > Intermediate Volcanic Rock > Andesite | ||||
| Rock unit name | Atlantic (Ashbed) Amygdaloid | ||||
| Rock description | Atlantic (Ashbed) Amygdaloid | ||||
| |||||
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | |||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| (1) | Copper Harbor Conglomerate |
|---|
| General form | TABULAR |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | Yes |
| Year of first production | 1866 |
| Year of last production | 1910 |
| Production years | 1866-1870, 1873-1906, 1908-1910 |
| District name | Keweenaw Copper |
|---|
| Type | Owner |
|---|---|
| Owner | Atlantic Mining Co. |
| Year | 1910 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1866-1910 | ||||||||||||||
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.
WHITE, W.S., 1956, GEOLOGIC MAP OF THE CHASSELL QUADRANGLE, MICHIGAN: USGS MAP MF-43, SCALE 1:24000
WHITE, W.S., AND WRIGHT, J.C., 1956, GEOLOGIC MAP OF THE SOUTH RANGE QUADRANGLE, MICHIGAN: USGS MAP MF-48, SCALE 1:24000
BUTLER AND BURBANK, 1929, P.78.
| Subject category | Comment text |
|---|---|
| Deposit | THE THE ATLANTIC MINE, THE ASHBED LODE HAS BEEN OPENED ALONG STRIKE FOR ABOUT 5,800 FT; THE AMYGDALOIDAL LODE AVERAGES ABOUT 12 FT THICK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1996 | Sutphin, D.M. (Cannon, W.F.) | 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.