Unnamed Occurrence (ARDF - NM123; northwest of the mouth of Quartz Creek), Nome Mining District, Nome Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - NM123; northwest of the mouth of Quartz Creek)	- not defined -
Nome Mining District	Mining District
Nome Census Area	Census Area
Alaska	State
USA	Country

Location: A vein containing gray copper was reported by Collier and others (1908) on a steep bluff above Norton Sound about one-half mile west of the mouth of Quartz Creek (NM122). The vein is only approximately located, probably within a third of a mile. This occurrence was included as part of locality 63 by Cobb (1972 [MF 463], 1978 [OFR 78-93]).
Geology: A quartz-sulfide (sulfosalt) vein several feet thick was reported by Collier and others (1908, p. 215) to be exposed on the bluffs above Norton Sound a short distance west of Quartz Creek. The vein was concordant to schistosity at a contact between chloritic and graphitic schist layers. Assays reported only trace amounts of gold and silver. The sulfide or sulfosalt mineral is described only as gray copper, most probably tennantite. The vein was lenticular and reportedly 'thinned rapidly' (Collier and others, 1908).
Workings: Prospecting activity occurred in the area shortly after the discovery of gold at Nome in 1898. The vein was discovered about 1903 or earlier.
Age: Because the vein is concordant to metamorphic foliation, it could be older than mid-Cretaceous, but a younger age is also possible.

Commodities (Major) - Cu; (Minor) - Ag, Au
Development Status: None
Deposit Model: Quartz-sulfide (sulfosalt) vein in metamorphic rocks.

Other Databases

Link to USGS - Alaska:	NM123

Other Regions, Features and Areas containing this locality

References