Unnamed (between George River and Moose Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag
Gangue minerals biotite

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale C-3
Latitude 62.53431
Longitude -157.08021
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on an isolated knob, hill 1560, between the George River and Moore Creek. The occurrence is near the center of the NW 1/4, section 9, T. 2 8N., R. 42 W., of Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence is in a intensely altered zone with secondary biotite in a small hypabyssal intrusion of intermediate composition and with a pilotaxitic texture. The plug intrudes shale and sandstone strata of the Upper Cretaceous, Kuskokwim Group (Bundtzen and others, 1988; Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). One sample of altered rock with biotite contained 1,000 parts per billion silver (McGimsey and others, 1988).
Geologic map unit (-157.082582360652, 62.5336290619132)
Alteration of deposit Strong zone of secondary biotite in intrusion.

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey in 1983 (McGimsey and others, 1988).
Indication of production None

References