| Main commodities | Ag; Au |
|---|---|
| Ore minerals | arsenopyrite; chalcopyrite; pyrite |
| Gangue minerals | quartz |
| Quadrangle map, 1:250,000-scale | AN |
|---|---|
| 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) |
|---|---|
| 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. |
|---|---|
| Indication of production | None |
| MRDS Number | A106191 |
|---|---|
| Reporters | D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS) |
| Last report date | 7/30/1998 |