Unnamed (east side of Richardson Highway near Phelan Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Cu
Ore minerals bornite; chalcopyrite; malachite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MH
Quadrangle map, 1:63,360-scale B-4
Latitude 63.2985
Longitude -145.6694
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an approximate elevation of 2,850 feet on the east side of the Richardson Highway near Phelan Creek. It is in the SE1/4NE1/4 section 5, T. 19 S., R. 11 E., Fairbanks Meridian. This location is accurate within a quarter-mile. The occurrence corresponds to locality S110 in table 2 of Nokelberg and others (1991).

Geologic setting

Geologic description

At this location, quartz veins in joints cut meta-andesite agglomerate of the Slana Spur Formation of Pennsylvanian age (Nokleberg and others, 1991). A composite chip sample of quartz containing chalcopyrite, malachite, and bornite contained 10,000 parts per million (ppm) copper and 20 ppm silver.
Geologic map unit (-145.671649853624, 63.2980871052064)
Mineral deposit model Polymetallic veins (Cox and Singer, 1989; model 22c).
Mineral deposit model number 22c
Age of mineralization Pennsylvanian or younger.
Alteration of deposit Oxidation of copper minerals.

Production and reserves

Indication of production None