Unnamed (west of George River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Hg; Sb
Other commodities Ag; Au; Li
Gangue minerals quartz

Geographic location

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 setting

Geologic description

This 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dike that intrudes shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Cady and others, 1955; M.L. Miller, unpublished field data, 1998).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(ppm) mercury, 23 parts per billion (ppb) gold, 100 ppb silver, 42 ppm antimony, and 249 ppm lithium (M.L. Miller, unpublished data, 1998).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.

Production and reserves

Workings or exploration The occurrence was sampled by the U.S. Geological Survey in 1998.
Indication of production None

References

References

Reporters T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.) and M.L. Miller (U.S. Geological Survey)
Last report date 5/9/2003