| Quadrangle map, 1:250,000-scale | SM |
|---|---|
| Quadrangle map, 1:63,360-scale | D-5 |
| Latitude | 61.95987 |
| Longitude | -157.72613 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This occurrence is near the top of hill 1273 about 0.8 mile west of a sharp loop in the George River and 4.6 miles north of Georgetown on the Kuskokwim River. The occurrence is in the NW1/4 sec. 33, T. 22 N., R. 46 W., of the Seward Meridian. The location is accurate. |
Geologic descriptionThis occurrence is near a felsic dike that intrudes shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Cady and others, 1955; M.L. Miller, unpublished field data, 1998). The occurrence consists of altered zones in the felsic dike and thin quartz veins in the adjacent sedimentary rocks. Two grab samples contained 2.1 to 49.2 parts per million (ppm) mercury, 23 parts per billion (ppb) gold, 100 ppb silver, 42 ppm antimony, and 249 ppm lithium (M.L. Miller, unpublished data, 1998). | |
| Geologic map unit | (-157.728531225653, 61.9591778326229) |
|---|---|
| Alteration of deposit | Sericite in altered felsic dike. |
| Workings or exploration | The occurrence was sampled by the U.S. Geological Survey in 1998. |
|---|---|
| Indication of production | None |
References | |
| Reporters | T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.) and M.L. Miller (U.S. Geological Survey) |
|---|---|
| Last report date | 5/9/2003 |