Unnamed Occurrence (ARDF - SE003; in Selawik Hills), Selawik Mining District, Northwest Arctic Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - SE003; in Selawik Hills)	- not defined -
Selawik Mining District	Mining District
Northwest Arctic Borough	Borough
Alaska	State
USA	Country

This occurrence is on the boundary of the Selawik National Wildlife Refuge.
Location: This occurrence is at an elevation of about 550 feet at the east edge of section 24, T. 9 N., R. 5 W., of the Kateel River Meridian. Barker (1985), fig. 7, location L.
Geology: The country rocks at this occurrence consist of Jurassic metabasalt and metasedimentary rocks. The occurrence consists of pyrite, malachite, and minor chalcopyrite in calcite, chlorite and epidote veins in chlorite-altered basalt (greenstone) and in fine-grained banded metasedimentary rocks. Metallic minerals in the veins occur as veinlets and pods. Sulfide banding in the greenstone consists predominately of pyrite. Copper values in high-grade grab samples did not exceed 1,000 ppm. Copper values greater than 100 ppm were noted in a stream-sediment sample taken from a stream which drains the site (Barker, 1985).
Workings: Site was sampled by the U.S. Bureau of Mines (Barker, 1985).
Age: Jurassic?
Alteration: Chlorite and epidote.

Commodities (Major) - Cu
Development Status: None
Deposit Model: Basaltic Cu? (Cox and Singer, 1986; model 23)

Other Databases

Link to USGS - Alaska:	SE003

Other Regions, Features and Areas containing this locality

References