| Deposit ID | 10002269 |
|---|---|
| MRDS ID | A013172 |
| Record type | Site |
| Current site name | Bruce Hills Copper-Molybdenum Prospect |
| Geographic coordinates: | -136.35294, 58.98279 (WGS84) |
|---|---|
| Elevation | 640 |
| Relative position | SOUTH SIDE OF CENTRAL BRUCE HILLS, NEAR EL. 2221 |
Political divisions (FIPS codes)
Hoonah-Angoon(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Fairweather D-2(quadrangle 1:63,360 scale)
Juneau NW(quadrangle 1:100,000 scale)
Mount Fairweather(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Glacier Bay(hydrologic unit)
Northern Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Glacier Bay National Park(National Park)
National Park NPS(Type of land area)
NPS(Federal land areas administered by NPS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Molybdenum | Primary |
| Silver | Tertiary |
| Lead | Tertiary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Malachite | Ore |
| Molybdenite | Ore |
| Molybdite | Ore |
| Sphalerite | Ore |
| Chlorite | Gangue |
| Goethite | Gangue |
| Hematite | Gangue |
| Montmorillonite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| (1) | -136.35294, 58.98279 |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Juneau/Glacier Bay N.M. |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A013172 |
USGS OF 78-494, P. C-295-300, FIGS. C-61, 62, TABLE C-54 (1978)
USGS P 632 P. 48, 49, PLATE 1, LOC. 34 (1971)
USGS MF-436, LOC. 41
BAG-OF-78-494-FIG-C-62
| Subject category | Comment text |
|---|---|
| Deposit | DEPOSIT IS IN HEAVILY IRON-STAINED GRANODIORITE, WITH SMALL ROOF PENDANTS OF HORNFELS AND ANDESITE DIKES. GRANODIORITE IS SHATTERED AND BRECCIATED IN VICINITY OF NE-TRENDING FAULT ZONE. MINERALIZED ROCKS ARE MOSTLY ALTERED GRANODIORITE CONTAINING NUMEROUS SULFIDE-BEARING THIN QUARTZ VEINS, DISSEMINATED SULFIDES, AND MINERALIZED FRACTURE COATINGS. ORE MINERALS ARE ASSOCIATED WITH PYRITE AND PYRRHOTITE AND INCLUDE CHALCOPYRITE, MOLYBDENITE, MALACHITE, AND MINOR MOLYBDITE, SPHALERITE, AND GALENA. |
| Deposit | THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-1987 | Leonard, Kenneth R. (Huber, Donald F.) | U.S. Geological Survey | |
| Editor | 02-SEP-1994 | Mosier, Dan | U.S. Geological Survey | PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES. |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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