| Deposit ID | 10082867 |
|---|---|
| MRDS ID | W062230 |
| Record type | Site |
| Current site name | Iroquois Mine |
| Geographic coordinates: | -88.35783, 47.32306 (WGS84) |
|---|---|
| Relative position | ABOUT 1.9 MI N OF FULTON, MI. |
Political divisions (FIPS codes)
Keweenaw(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mohawk(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 |
|---|---|---|---|---|---|
| 57N | 32W | 22 | Michigan |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Copper | Ore |
| Calcite | Gangue |
| Prehnite | 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) > Mafic Volcanic Rock > Basalt | ||||
| Rock unit name | Iroquois Amygdaloid | ||||
| Rock description | Iroquois Amygdaloid | ||||
| |||||
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | |||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| (1) | -88.35783, 47.32306 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Amygdaloidal flow top |
| General form | TABULAR |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1942 |
| Year of last production | 1968 |
| Production years | MINED MORE OR LESS CONTINUOUSLY FROM 1942 TO 1968. |
| District name | Keweenaw Copper |
|---|
| Year | 1968 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1942-1968 | ||||||||||||||
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.
DAVIDSON, E.S, ESPENSHADE, G.H., WHITE, W.S., AND WRIGHT, J.C., 1955, BEDROCK GEOLOGY OF THE MOHAWK QUADRANGLE, MICHIGAN: USGS MAP GQ-54, SCALE 1:24000
WHITE, W.S., 1968, THE NATIVE COPPER DEPOSITS OF NORTHERN MICHIGAN: IN J.D. RIDGE (EDITOR) ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES); AM. INSTIT. MIN. METALL. PETROL. ENG., V. 1, P. 303-325.
WEEGE, R.J., AND POLLACK, J.P., 1971, RECENT DEVELOPMENTS IN THE NATIVE COPPER DISTRICT OF MICHIGAN: IN W.S. WHITE, (EDITOR) GUIDEBOOK FOR FIELD CONFERENCE, MICHIGAN COPPER DISTRICT, SEPT. 30-OCT. 2, 1971, SOC. ECON. GEOL., P. 19-43.
WEEGE, R.J., AND POLLACK, J.P., 1971; WHITE, W.S., 1968.
| 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.