Unnamed Occurrence (ARDF - NT003; on Rabbit Creek), Noatak Mining District, Northwest Arctic Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - NT003; on Rabbit Creek)	- not defined -
Noatak Mining District	Mining District
Northwest Arctic Borough	Borough
Alaska	State
USA	Country

This occurrence is now with the Cape Krusenstern National Monument which is closed to mining and mineral exploration.
Location: This occurrence consists of outcrop in Rabbit Creek at an elevation of about 500 feet. It is about 6.2 miles southeast of Igiglogruk Mountain, about 0.3 mile south of the center of Section 28, T. 26 N., R. 21 W., of the Kateel River Meridian. The location is accurate within 1/2 mile.
Geology: This occurrence consist of a 4-inch-thick sulfide-bearing quartz vein with iron and copper staining and about a dozen sulfide-quartz boulders (as much as 4 feet wide by 6.3 feet long) that contain pods, wisps, and bands of hematite, pyrite, chalcopyrite, and minor bornite (Barker and Roberts, 1985). The host rock is gray to green, crenulated phyllite of the Devonian to Permian(?) Mississippian Endicott Group. Grab samples average 3.13 percent copper and 0.034 percent cobalt. The highest grade sample contained 6.7 percent copper, 0.153 percent cobalt, and 11.0 parts per million silver.
Workings: Only limited surface sampling.
Age: Devonian or younger based on the age of the host rock.
Reserves: None.

Commodities (Major) - Co, Cu
Development Status: None
Deposit Model: Quartz vein and stratiform sulfides.

Other Databases

Link to USGS - Alaska:	NT003

Other Regions, Features and Areas containing this locality

References