Unnamed (on lower Prince Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag; Bi; Hg; W
Ore minerals cinnabar; scheelite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale B-4
Latitude 62.34986
Longitude -157.90894
Nearby scientific data Find additional scientific data near this location
Location and accuracy This lode occurrence is exposed in a placer cut on Prince Creek, at an elevation of about 400 feet. It is near the center of the south boundary of section 12, T. 26 N., R. 47 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence consists of two quartz-sulfide veinlets in and adjacent to a 6-foot-thick monzonite dike that intrudes hornfels derived from the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994). The two veinlets average about 1 inch thick, strike N20E and dip 75SE. Their length is unknown as exposures were limited to the placer cut. Cinnabar and scheelite were noted in one vein (T.K. Bundtzen, unpublished field data, 1984). One grab sample contained 3,400 parts per billion (ppb) gold, 10.0 parts per million (ppm) silver, 1,380 ppm tungsten, 78 ppm bismuth, and 820 ppb mercury (McGimsey and others, 1988; Bundtzen and others, 1992).
Geologic map unit (-157.911344649596, 62.349173160013)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in the 1980s (McGimsey and others, 1988; Bundtzen and others, 1992).
Indication of production None

References