| Main commodities | Ag; Au |
|---|---|
| Ore minerals | chalcopyrite; gold; pyrite; sphalerite |
| Gangue minerals | calcite; quartz |
| Quadrangle map, 1:250,000-scale | AN |
|---|---|
| Quadrangle map, 1:63,360-scale | A-4 |
| Latitude | 61 |
| Longitude | -148.25 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | South slope of Mount Doran 1 mile south-southwest from summit, near a southward flowing drainage west of Lagoon Creek. Accurate within 1/2 mile. Locality A-35 of Jansons and others (1984). |
Geologic descriptionAccording to Jansons and others (1984), quartz-calcite veins are found in a 43 inch wide shear zone cutting metasandstone and metasiltstone of the Late Cretaceous Valdez Group. The veins are up to 2 ft wide and contain pyrite, chalcopyrite, sphalerite, and gold. Five chip samples contained up to 0.08 oz/ton Au and 0.02 oz/ton Ag. | |
| Geologic map unit | (-148.252079393647, 60.9994284958336) |
|---|---|
| Age of mineralization | Late Cretaceous or younger; veins cut metasandstones and metasiltstones of the Late Cretaceous Valdez Group. |
| Workings or exploration | Explored by a 200 ft adit and some surface stripping. Jansons and others (1984) reported five chip samples contained up to 0.08 oz/ton Au and 0.02 oz/ton Ag. Low mineral development potential (Jansons and others, 1984). |
|---|---|
| Indication of production | None |
| MRDS Number | A106182 |
|---|---|
| Reporters | D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS) |
| Last report date | 7/30/1998 |