Main commodities | Ag; Au |
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Ore minerals | arsenopyrite; chalcopyrite; pyrite |
Gangue minerals | quartz |
Quadrangle map, 1:250,000-scale | AN |
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Quadrangle map, 1:63,360-scale | A-3 |
Latitude | 61.02 |
Longitude | -147.91 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | At terminus of Cresent Glacier. Accurate within 1,000 ft. Locality A-18 of Jansons and others (1984). |
Geologic descriptionQuartz float contains pyrite, arsenopyrite, and chalcopyrite. A float sample contained no detectable gold and 0.03 oz/ton Ag. Bedrock in the vicinity is the Late Cretaceous metasedimentary rocks of the Valdez Group. A minor amount of placer gold present (Jansons and others, 1984). | |
Geologic map unit | (-147.912048778847, 61.0194417955709) |
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Mineral deposit model | Placer Au (Cox and Singer, 1986; model 39a) |
Mineral deposit model number | 39a |
Age of mineralization | Late Cretaceous or younger. |
Workings or exploration | Quartz float sample contained no detectable gold and 0.03 oz/ton Ag. Placer gold was present in minor amounts. Jansons and others (1984) reported low mineral development potential. |
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Indication of production | None |
MRDS Number | A106191 |
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Reporters | D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS) |
Last report date | 7/30/1998 |