| Deposit ID | 10000375 |
|---|---|
| MRDS ID | A010442 |
| Record type | Site |
| Current site name | Jack Bay #3 |
| Geographic coordinates: | -146.45254, 60.96959 (WGS84) |
|---|---|
| Relative position | The Jack Bay #3 prospect is at an elevation of about 2000 feet, approximately 2.2 miles north of Silver Lake. It is in the NW1/4 sec. 27, T. 10 S., R. 7 W., of the Copper River Meridian. The location is accurate to within 2000 ft. This prospect is shown as C-95 in Jansons and others (1984). |
Political divisions (FIPS codes)
Valdez-Cordova(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cordova D-7(quadrangle 1:63,360 scale)
Cordova NW(quadrangle 1:100,000 scale)
Cordova(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Eastern Prince William Sound(hydrologic unit)
Prince William Sound(hydrologic accounting unit)
South Central Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Chugach 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 |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Arsenopyrite | Ore |
| Gold | Ore |
| Limonite | Gangue |
| Quartz | Gangue |
| Model code | 274 |
|---|---|
| USGS model code | 36a.1 |
| Deposit model name | Low-sulfide Au-quartz vein, Chugach-type |
| Mark3 model number | 26 |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone | ||||
| Rock unit name | Valdez Group | ||||
| Rock description | Valdez Group | ||||
| |||||
| (1) | -146.45254, 60.96959 |
|---|
| Development status | Prospect |
|---|---|
| Commodity type | Metallic |
| District name | Copper River |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A010442 | |
| USGS | Alaska Resource Data File | ARDF | CV025 |
Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.
Goldfarb, R.J., Leach, D.L., Miller, M.L., and Pickthorn, W.J., 1986, Geology, metamorphic setting, and genetic constraints of epigenetic lode-gold mineralization within the Cretaceous Valdez Group, south-central Alaska, in Keppie, J.D., Boyle, R.W., and Haynes, S.J., eds., Turbidite-hosted gold deposits: Geological Association of Canada Special Paper 32, p. 87-105.
Bliss, J.D., 1992, Grade and tonnage model of Chugach-type low-sulfide Au-quartz veins: U.S. Geological Survey Bulletin 2004, p. 44-46.
Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
| Subject category | Comment text |
|---|---|
| Deposit | Model Name = Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1; Goldfarb and others, 1986) |
| Deposit | Other Comments = Site is in the Chugach National Forest. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 10-JUN-2000 | S.W. Nelson | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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