Unnamed (near Cape Resurrection)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Cu; Pb; Zn
Other commodities Cd
Ore minerals chalcopyrite; galena; pyrite; unknown zinc mineral
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BS
Quadrangle map, 1:63,360-scale D-7
Latitude 59.881
Longitude -149.278
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is located on the beach about 3/4 mile north of Cape Resurrection in section 33, T. 3 S., R. 1 E., of the Seward Meridian. This is location 110 of Tysdal (1978) and is accurate to within one quarter of a mile.

Geologic setting

Geologic description

The host rock is Upper Cretaceous sheeted basalt of the Valdez Group that has been sheared and brecciated (Tysdal, 1978). he shear and breccia zone is 0.6 meters wide and contains quartz, pyrite, chalcopyrite, and galena. Analysis showed 3 ppm silver, 70 ppm cadmium, 1,500 ppm copper, 3,000 ppm lead, and 9,200 ppm zinc. Tysdal (1978) considers this occurrence to be a volcanogenic massive sulfide deposit.
Geologic map unit (-149.280126475344, 59.8804421956702)
Mineral deposit model Cyprus massive sulfide (Cox and Singer, 1986; model 24a).
Mineral deposit model number 24a
Age of mineralization Cretaceous or younger; breccia zone in Cretaceous basalt.

Production and reserves

Workings or exploration A hand sample contained 3 PPM silver, 70 ppm cadmium, 1500 ppm copper, 3000 ppm lead, and 9,200 ppm Zn (Tysdal, 1978).
Indication of production None

References

MRDS Number A010603
Reporters Jeff A. Huber (Anchorage)
Last report date 1/28/1999