Unnamed (near Susitna River east of Devils Canyon)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Cu; Zn
Other commodities As; Pb

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale D-5
Latitude 62.8046
Longitude -149.0981
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the south wall of the Susitna River at an elevation of about 1,700 feet. It is about 2 miles southwest of the junction of Devil Creek and the Susitna River, about 0.3 mile west-southwest of the center of sec. 4, T. 31 N., R. 2 E., Seward Meridian. The location is accurate.

Geologic setting

Geologic description

The rocks in the vicinity of this occurrence are granodiorite, migmatite, gneiss, and schist (Csejtey and others, 1978). An eroded dike cuts the gneiss at one location (Kurtak and others, 1992). A sample of quartz-rich gneiss contains 13.5 parts per million silver, 2,882 parts per million copper, and 302 parts per million zinc (Balen, 1990). A float sample of sulfide-bearing schist contains 10.5 parts per million silver, 180 parts per million arsenic, 264 parts per million lead, and 2,121 parts per million zinc.
Geologic map unit (-149.100353360892, 62.8041200131518)
Alteration of deposit Silicification.

Production and reserves

Workings or exploration Limited surface sampling by the U.S. Bureau of Mines (Balen, 1990).
Indication of production None

References