Singletary Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

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

Location: The occurrence is located in the NE1/4 section 3, T. 4 N., R. 10 E., of the Seward Meridian. It is near tidewater on the west side of Louis Bay. This is location 197 of Tysdal (1978 [MF-880-A]) and location S-83 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The occurrence was first mentioned on plate IV of Grant and Higgins (1909) with no other information. The country rock is pillow basalt and greenstone of the Orca Group of early Teriary age (Nelson and others, 1985). The U.S. Bureau of Mines examined this area and found a copper-stained shear zone. Two random chip samples from the shear zone and from pillow basalt contained 43 to 155 ppm copper and 180 to 230 ppm zinc, respectively (Kurtak and Jeske, 1986).
Workings: There are no reported workings or any signs of prospecting (Kurtak and Jeske, 1986). Two random chip samples were collected; one from the shear zone and one from pillow basalt. The sheared greenstone sample contained 155 ppm copper and 180 ppm zinc; the basalt sample contained 43 ppm copper and 230 ppm zinc (Kurtak and Jeske, 1986).
Age: Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.

Commodities (Major) - Cu
Development Status: None
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)

Other Databases

Link to USGS - Alaska:	SR262

Other Regions, Features and Areas containing this locality

References