Unnamed (northeast of Sevenmile Lake)

Occurrence, Active

Commodities and mineralogy

Main commodities Ag; Zn
Ore minerals sphalerite

Geographic location

Quadrangle map, 1:250,000-scale MH
Quadrangle map, 1:63,360-scale A-5
Latitude 63.2192
Longitude -146.1466
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of 3,950 feet about 2.6 miles northeast of the east tip of Sevenmile Lake. It is in the southeast corner of section 35, T. 19 S., R. 8 E., Fairbanks Meridian. The occurrence corresponds to locality 69 in table 2 of Nokleberg and others (1991).

Geologic setting

Geologic description

The rocks at this occurrence are limy argillite interlayered with metabasalt, probably of Late Paleozoic age (Nokleberg and others, 1991). Sphalerite was tentatively identified in limy argillite grab sample 79NW129A, which assayed 810 parts per million (ppm) zinc and 5 ppm silver (Nokleberg and others, 1991, table 2, locality 69).
Geologic map unit (-146.148854953628, 63.2187756173072)
Mineral deposit model Unclassified.
Age of mineralization Late Paleozoic, the presumed age of the host rock.

Production and reserves

Indication of production None