| Deposit ID | 10001343 |
|---|---|
| MRDS ID | A012084 |
| Record type | Site |
| Current site name | Mammoth Prospect-Admiralty I. |
| Alternate or previous names | USGS |
| Geographic coordinates: | -134.64978, 58.11502 (WGS84) |
|---|---|
| Location accuracy | 2000(meters) |
Political divisions (FIPS codes)
Juneau(Borough)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Juneau A-2(quadrangle 1:63,360 scale)
Juneau SE(quadrangle 1:100,000 scale)
Juneau(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Admiralty Island(hydrologic unit)
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)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Zinc Critical | Primary |
| Lead | Secondary |
| Silver | Secondary |
| Gold | Secondary |
| Materials | Type of material |
|---|---|
| Sphalerite | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | 4.5 FT SAMPLE TAKEN IN 1983 CONTAINED 2% ZN, 0.5% BA, 280 PPM AS |
|---|---|
| Result | AND 8.1 FT SAMPLE CONTAINED 1100 PPM ZN, 320 PPM AS, AND 0.65 PPM AU |
| Result | OLDER SAMPLES AVERAGED ABOUT 1-2% ZN WITH MINOR PB, AG AND AU, ACCORDING TO A WGM INC. UNPUBLISHED REPORT |
| Result | USGS OFR 85-717, P. 88 |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist > Calc-Silicate Schist |
| (1) | -134.64978, 58.11502 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Schistosity Of Country Rock: Strike N 25 W, Dip 75 Ne |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Admiralty |
|---|
| Ownership category | National Forest |
|---|
| Type of workings | Surface/Underground |
|---|---|
| Length | 50.29M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A012084 |
USGS BULL 259, P. 55-56
USGS BULL 287, P. 150
USGS BULL 1246, P. 140
ADGGS GCB, P. 19
USGS OFR 85-717, P. 88
BAG-OFR-85-717-075
| Subject category | Comment text |
|---|---|
| Deposit | THREE E-W TRENDING ZONES 25-75 FT WIDE IN PYRITIFEROUS BELT OF SCHIST; ZONES CONTAIN QUARTZ-CARBONATE-MARIPOSITE VEINS CARRYING PYRITE, SPHALERITE, GALENA AND FREE GOLD; REPORTED MAGNETIC ANOMALY |
| Deposit | SEE ALSO: PORTAGE PROSPECT ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1985 | Leonard, Kenneth R. (Elliott, R. L.) | U.S. Geological Survey | |
| Editor | 14-APR-1994 | Mosier, Dan | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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