Unnamed Occurrence (ARDF - SR162; west headwaters of Kings River), Prince William Sound Mining District, Kenai Peninsula Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - SR162; west headwaters of Kings River)	- not defined -
Prince William Sound Mining District	Mining District
Kenai Peninsula Borough	Borough
Alaska	State
USA	Country

Location: This occurrence is located in the NW1/4 section 24, T. 5 N., R. 3 E., of the Seward Meridian. It is at an elevation of 2,400 feet, near the toe of an unnamed glacier that is above the west headwaters fork of the Kings River. This is location S-183 of Jansons and others (1984). It is accurate to within a quarter of a mile.
Geology: This occurrence consists of numerous sulfide-bearing quartz-calcite veins in fractured Oligocene felsic dikes that intruded Valdez Group carbonaceous slate and quartzite of Late Cretaceous age (Jansons and others, 1984). The dikes range from 1 to 5 feet thick and generally strike N35E and dip 55 to 80 NW. The dikes contain as much as 15 percent quartz-calcite veins that carry arsenopyrite, chalcopyrite, pyrite, pyrrhotite, and gold. This occurrence was discovered by the U.S. Bureau of Mines in 1980 (Hoekzema and Sherman, 1983). A single grab sample contained 0.75 ppm gold and 3.5 ppm silver along with minor amounts of base metals. Coarse gold occurs in stream sediments downstream from this occurrence.
Workings: This occurrence was discovered by the U.S. Bureau of Mines in 1980. A single grab sample contained 0.75 ppm gold and 3.5 ppm silver, along with minor amounts of base metals. Coarse gold occurs in stream sediments downstream from this occurrence.
Age: Oligocene or younger; the veins are in dikes that are Oligocene in age.

Commodities (Major) - Au; (Minor) - Ag, Cu
Development Status: None
Deposit Model: Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)

Other Databases

Link to USGS - Alaska:	SR162

Other Regions, Features and Areas containing this locality

References