George and McFarland Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
George and McFarland Prospect	Prospect
Prince William Sound Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

U.S. Bureau of Mines reports a 47-foot adit with a 20- to 30-foot winze (Jansons and others, 1984). This differs from Johnson's (1914 [B 592-G, p. 232]) description of the workings.
Location: This prospect is located near sea level on the south shore of Bettles Bay, a northwest-trending bay in Port Wells. It is located in the NW1/4 section 24, T. 10 N., R. 6 E., of the Seward Meridian. This is location location 125 of Condon and Cass (1958), location 64 of Cobb and Richter (1972), location 83 of MacKevett and Holloway (1977), location 130 of Cobb and Tysdal (1980), and location S-157 of Jansons and others (1984). The location is accurate to within a quarter of a mile.
Geology: The prospect is hosted in slate and sandstone of the Valdez Group of Late Cretaceous age that is intruded by Oligocene felsic dikes (Tysdal, 1978 [MF-880-A]). The sedimentary rocks strike N48E and dip 66N. The felsic dike is 18 inches wide, strikes N43E, and dips vertically. The deposit consists of two intersecting quartz-carbonate veins that, at the portal, respectively strike N15W and N20W and dip 72W and 86W. The veins merge underground and continue along a 4-foot-wide, N20W shear zone. The veins are banded with quartz and carbonate that carries arsenopyrite, galena, sphalerite, and gold (Johnson 1914 [B 592-G, p. 232]). The U.S. Bureau of Mines assayed five samples from the workings; they contained a trace to 0.77 ounce of gold per ton and a trace to 0.41 ounce of silver per ton (Jansons and others, 1984).
Workings: Workings consists of a single 45-foot adit with a 40-foot-deep winze and some stripping (Johnson, 1914 [B 592-G, p. 232]). A rotten log structure is located immediately above the portal (Hoekzema and Sherman, 1983). Jansons and others (1984) assayed five samples; these contained a trace to 0.77 ounce of gold per ton and a trace to 0.41 ounce of silver per ton. They described the workings as very hazardous and did not attempt to map them.
Age: Oligocene or younger; quartz veins cut an Oligocene dike.
Reserves: The U.S. Bureau of Mines estimates a resource of 500 tons of ore grading 0.3 ounce of gold per ton and 0.24 ounce of silver per ton (Hoekzema and Sherman, 1983).

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

Other Databases

Link to USGS - Alaska:	SR079

Other Regions, Features and Areas containing this locality

References