Deposit ID | 10307849 |
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Record type | Site |
Current site name | Rock Glacier |
Geographic coordinates: | -154.13085, 62.35347 (WGS84) |
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Relative position | The Rock Glacier occurrence is located in the headwall of an unnamed stream valley above an active rock glacier at an elevation of approximately 4,600 feet (1,402 m) in the SE1/4 sec. 8, T. 26 N., R. 26 W., of the Seward Meridian. The location is based on descriptions provided in Gilbert and others (1990). The reporter visited the site in 1984. |
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Country | State |
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United States | Alaska |
Commodity | Importance |
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Copper | Primary |
Iron | Secondary |
Materials | Type of material |
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Malachite | Ore |
Pyrite | Ore |
Pyrrhotite | Ore |
Chlorite | Gangue |
Epidote | Gangue |
Quartz | Gangue |
Model code | 59 |
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USGS model code | 18b |
Deposit model name | Skarn Cu |
Mark3 model number | 8 |
(1) | -154.13085, 62.35347 |
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Development status | Occurrence |
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District name | McGrath |
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Agency | Database name | Acronym | Record ID | Notes |
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USGS | Alaska Resource Data File | ARDF | MG038 |
Bundtzen, T.K., Harris, E.E., and Gilbert, W.G., 1997, Geologic Map of the eastern McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 97-14, 34 pages, one sheet, scale 1:125,000.
Gilbert, W.G., Solie, D.N., Kline, J.T., and Dickey, D.B., 1990, Geologic map of the McGrath B-3 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 102, 2 sheets, scale 1:63,360.
Subject category | Comment text |
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Deposit | Model Name = Copper skarn(?) (Cox and Singer, 1986; model 18b). |
Deposit | Other Comments = Similar to Rat Fork-Headwall and Rat Fork-Base prospects (MG058; MG059) in McGrath B-2 quadrangle. |
Type | Date | Name | Affiliation | Comment |
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Reporter | 04-DEC-98 | T.K. Bundtzen | Pacific Rim Geological Consulting |