| Deposit ID | 10000484 |
|---|---|
| MRDS ID | A010667 |
| Record type | Site |
| Current site name | Sumdum Prospect |
| Geographic coordinates: | -133.44362, 57.77753 (WGS84) |
|---|
Political divisions (FIPS codes)
Hoonah-Angoon(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Sumdum D-5(quadrangle 1:63,360 scale)
Sumdum N(quadrangle 1:100,000 scale)
Sumdum(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Central Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Tongass National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
Tracy Arm-Fords Terror Wilderness(Wilderness)
Wilderness FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Zinc Critical | Primary |
| Silver | Secondary |
| Lead | Secondary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Malachite | Ore |
| Sphalerite | Ore |
| Albite | Gangue |
| Barite | Gangue |
| Calcite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Gneiss |
| (1) | -133.44362, 57.77753 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Regional Nw-Trending Foliation |
| Type of structure | Local |
| Structure description | Isoclinal Folds Overturned To Sw, Numerous Minor Folds On Limbs Of Larger Folds |
| General form | TABULAR, LENTICULAR |
|---|---|
| Strike | N 25-50 W |
| Dip | NE STEEP |
| Plunge | GENTLE |
| Plunge direction | SE |
| Thickness | 15.24M |
| Length | 3048M |
| Depth to top | 0M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1958 |
| Discoverer | Alaska Helicopter Syndicate |
| District name | Petersburg District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A010667 |
USGS B 1108-E, P. E1-E31
USGS OFR 78-698, P. 28-29
USGS OFR 77-649, P. 4, 128-129, 205-212, 258-259
| Subject category | Comment text |
|---|---|
| Deposit | TABULAR ORE BODIES ARE PARALLEL OR SUBPARALLEL TO FOLIATION IN HIGHLY FOLDED METAMORPHIC ROCKS, ORE SOMEWHAT LOCALIZED BY FOLDS & FAULTS. SNOW & GLACIER COVER CONCEALS MUCH OF DEPOSIT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-1984 | Elliott, R. L. | U.S. Geological Survey | |
| Editor | 13-APR-1994 | Mosier, Dan | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.