| Quadrangle map, 1:250,000-scale | AN |
|---|---|
| Quadrangle map, 1:63,360-scale | A-3 |
| Latitude | 61.07 |
| Longitude | -148.11 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | On east side of Barry Arm, 5,000 ft southwest of Mt. Curtis summit. Accurate within 0.5 miles. Locality 59 of Cobb (1972), locality 48 of MacKevett and Holloway (1977), and locality A-23 of Jansons and others (1984). |
Geologic descriptionNorth striking quartz veins found in Late Cretaceous Valdez Group graywacke and slate. The vein, 6 to 69 inches thick, can be traced for 200 ft and contains gold, galena, pyrite, and chalcopyrite. The primary vein is intersected by another quartz vein, approximately 4 ft thick (Johnson, 1914). Jansons and others (1984) reported traces of gold and up to 0.25 oz/ton Ag in samples. | |
| Geologic map unit | (-148.112068010552, 61.0694354629614) |
|---|---|
| Mineral deposit model | Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1?) or Epithermal Au vein? |
| Mineral deposit model number | 36a.1? |
| Age of mineralization | Late Cretaceous or younger; veins cut Late Cretaceous Valdez Group graywackes and slates. |
| Workings or exploration | Surface stripping was the only development at the time of the visit of Johnson (1914). Jansons and others (1984) report traces of gold and up to .0.25 oz/ton Ag found in the three samples that were taken. Low mineral development potential. |
|---|---|
| Indication of production | None |
| MRDS Number | A011663 |
|---|---|
| Reporters | D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS) |
| Last report date | 7/30/1998 |