| Deposit ID | 10308252 |
|---|---|
| Record type | Site |
| Current site name | Unnamed (on headwater tributary to Porcupine Creek) |
| Geographic coordinates: | -136.28213, 59.32974 (WGS84) |
|---|---|
| Relative position | This occurrence is at an elevation of approximately 3,500 feet on the east side of an unnamed headwater tributary to Porcupine Creek near the divide to Cottonwood Creek. It is in the the SW1/4, section 23, T. 29 S., R. 54 E. of the Copper River Meridian. It is shown as location 146 by Still and others (1987) and as site R by Gilbert and Redman (1989) who informally referred to it as the 'Porcupine Roof Pendant'. |
Political divisions (FIPS codes)
Haines(Borough)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Skagway B-4(quadrangle 1:63,360 scale)
Skagway SE(quadrangle 1:100,000 scale)
Skagway C(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Chilkat-Skagway Rivers(hydrologic unit)
Northern Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Gold | Primary |
| Copper | Secondary |
| Materials | Type of material |
|---|---|
| Pyrite | Ore |
| Model code | 59 |
|---|---|
| USGS model code | 18b |
| Deposit model name | Skarn Cu |
| Mark3 model number | 8 |
| Model code | 60 |
| USGS model code | 18c |
| Deposit model name | Skarn Zn-Pb |
| Mark3 model number | 22 |
| (1) | -136.28213, 59.32974 |
|---|
| Development status | Occurrence |
|---|
| District name | Juneau (Skagway subdistrict) |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Alaska Resource Data File | ARDF | SK052 |
MacKevett, E.M., Jr., Robertson, E.C., and Winkler, G.R., 1974, Geology of the Skagway B-3 and B-4 quadrangles, southern Alaska: U.S. Geological Survey Professional Paper 832, 33 p.
Still, J.C., Gilbert, W.G., and Forbes, R.B., 1987, Final report of stream sediment, float, and bedrock sampling in the Porcupine mining area, southeast Alaska, 1983-1985: U.S. Bureau of Mines Open-File Report 36-87, 35 p., 8 sheets.
Gilbert, W.G., and Redman, E.C., 1989, Lode deposits, prospects, and occurrences of the Porcupine mining area, southeast Alaska: U.S. Bureau of Mines Open-File Report 17-89, 1 sheet, scale 1:39,600.
Still, J.C., 1991, Bureau of Mines mineral investigations in the Juneau mining district, Alaska, 1984 - 1988, v. 2, Detailed mine, prospect, and mineral occurrence descriptions, section A, Haines-Klukwan-Porcupine subarea: U.S. Bureau of Mines of Mines Special Publication, 214 p.
| Subject category | Comment text |
|---|---|
| Deposit | Model Name = Based on limited information, this is probably a skarn related occurrence (Cox and Singer, 1986; model 18b? or 18c?). |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 04-FEB-01 | T.C. Crafford | T. Crafford & Associates |
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.