Unnamed Prospect (ARDF - SR116; near Chamberlain Bay), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - SR116; near Chamberlain Bay)	- not defined -
Prince William Sound Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

Location: The prospect is located on the north side of hill 1280 overlooking the valley that separates Growler Bay from Chamberlain Bay. The site is in the NE1/4 section 33, T. 11 S., R. 11 W., of the Copper River Meridian. This is location 191 of Tysdal (1978 [MF-880-A]) and location S-112 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The prospect is hosted in sheared, mafic sheeted dikes of the lower Orca Group of Tertiary age. The mineralization consists of solid streaks of sulfides, mostly pyrrhotite with traces of chalcopyrite and pyrite (Cobb and Tysdal, 1980). Four chip samples contained from 650 ppm to 1.25 percent copper and from 70 ppm to 0.2 percent cobalt (Jansons and others, 1984). A bulk sample (size unknown) collected by the U.S. Bureau of Mines contained 0.85 percent copper and 0.11 percent cobalt. Workings consist of seven surface trenches totaling 150 feet in length.
Workings: Four chip samples contained from 650 ppm to 1.25 percent copper, and from 70 ppm to 0.2 percent cobalt (Jansons and others, 1984). A bulk sample (size unknown) contained 0.85 percent copper and 0.11 percent cobalt. Workings consist of seven surface trenches totaling 150 feet in length.
Age: Tertiary or younger; the occurrence is in mafic sheeted dikes of the Orca Group of Teriary age.

Commodities (Major) - Cu; (Minor) - Co
Development Status: None
Deposit Model: Besshi massive sulfide (Cox and Singer, 1986; model 24b)

Other Databases

Link to USGS - Alaska:	SR116

Other Regions, Features and Areas containing this locality

References