Unnamed (Cove Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Cu
Ore minerals chalcopyrite; gold; pyrite; pyrrhotite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale D-5
Latitude 60.7778
Longitude -148.664
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located just east of the town of Whitter along the road that leads to Cove Creek. It is in the SE1/4 section 13, T. 8 N., R. 4 E., of the Seward Meridian. This is location S-179 of Jansons and others (1984) and is accurate to within a quarter of a mile.

Geologic setting

Geologic description

This occurrence consists of two veins hosted in slate and quartzite of the Valdez Group of Late Cretaceous age (Jansons and others, 1984). One vein located in a road cut, is 2 to 3 inches wide and contains pyrite. The second vein crops out in the road bed; it is 4 to 16 inches wide and contains chalcopyrite, gold, pyrite, and pyrrhotite.
Six grab samples from the road cut assayed by the U.S. Bureau of Mines contained less than 1 ppm gold. One grab sample from the vein in the road bed contained 2.9 ppm gold (Hoekzema and Sherman, 1983).
Geologic map unit (-148.666124934133, 60.7772172052863)
Mineral deposit model Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration The U.S. Bureau of Mines sampled this occurrence in 1981 and collected seven grab samples. The samples contained from nil to 2.9 ppm gold and less than 1 ppm silver (Jansons and others, 1984).
Indication of production None

Additional comments

This occurrence is within the road cut and is probably within the right-of-way of the road and hence is closed to mineral entry.

References

References

Hoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 p.
Reporters Jeff A. Huber (Anchorage)
Last report date 3/7/2000