| Deposit ID | 10306798 |
|---|---|
| Record type | Site |
| Current site name | Twin Lead Mine |
| Geographic coordinates: | -68.60928, 44.39654 (WGS84) |
|---|
Political divisions (FIPS codes)
Hancock(county)
Maine(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Blue Hill(quadrangle 1:24,000 scale)
Bar Harbor(quadrangle 1:100,000 scale)
Bangor(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Maine Coastal(hydrologic unit)
Maine Coastal(hydrologic accounting unit)
Maine Coastal(hydrologic subregion)
New England(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Maine | Hancock |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Nickel Critical | Primary |
| Tin Critical | Primary |
| Arsenic Critical | Primary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Arsenopyrite | Ore |
| Niccolite | Ore |
| Galena | Ore |
| Cassiterite | Ore |
| Bornite | Ore |
| Pyrrhotite | Ore |
| Model code | 91 |
|---|---|
| USGS model code | 24b |
| Deposit model name | Massive sulfide, Besshi (Japanese deposits) |
| Mark3 model number | 30 |
| (1) | -68.60928, 44.39654 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Quartzites, Gneiss, Amphibolite |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
Young, R. S., 1962, Prospect Evaluations, Hancock County, Maine: Maine Geological Survey Special Economic Studies Series 2, 113 P.Young, R. S., 1962, Prospect Evaluations, Hancock County, Maine: Maine Geological Survey Special Economic Studies Series 2, 113 P.
Maine Geological Survey (Hussey, A. M., Ii; Compiler), 1958, Maine Metal Mines And Prospects: Maine Geological Survey Minerals Resources Index 3, 53 P.Maine Geological Survey (Hussey, A. M., Ii; Compiler), 1958, Maine Metal Mines And Prospects: Maine Geological Survey Minerals Resources Index 3, 53 P.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-98 | Beck, F.M. | Contractor | |
| Editor | 01-DEC-02 | Woodruff, L. G. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.