Bullion; Bullion Ledge Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Bullion; Bullion Ledge Occurrence	Occurrence
Prince William Sound Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

Location: This occurrence is on the east side of Billings Creek about three-quarters of a mile from tidewater. This location is in the SE1/4 section 29, T. 9 N., R. 5 E., of the Seward Meridian and is accurate to within a quarter of a mile. This is location 135 of Condon and Cass (1958), location 56 of Cobb and Richter (1972), location 89 of MacKevett and Holloway (1977), location 140 of Cobb and Tysdal (1980), and location S-172 of Jansons and others (1984).
Geology: The occurrence is a 3,000- by 1,000-foot-zone of quartz veins in Valdez Group slate of Late Cretaceous age (Cobb and Tysdal, 1980). The veins contain arsenopyrite, chalcopyrite, galena, sphalerite, and gold. No assay results are reported, but Johnson (1914 [B 592-G, p. 233]) reported that the zone is of low grade, although fine free gold is visible in some of the veins.
Workings: No workings are reported. The U.S. Bureau of Mines searched for this occurrence but did not locate it (Hoekzema and Sherman, 1983). Instead, they examined a similar deposit about 0.5 to 0.75 mile north of the reported location of this occurrence.
Age: Cretaceous or younger; quartz veins intrude rocks Valdez Group of Late Cretaceous age.

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

Other Databases

Link to USGS - Alaska:	SR060

Other Regions, Features and Areas containing this locality

References