Unnamed (near Kukpowruk River)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Th; U

Geographic location

Quadrangle map, 1:250,000-scale PL
Quadrangle map, 1:63,360-scale B-2
Latitude 69.4167
Longitude -162.6917
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrences is near the bank of the Kukpowruk River about 11 miles southwest of the center of Kuvirok Lake, near the northeast corner of Section 28, T. 1 N., R. 44 W., of the Umiat Meridian. The samples were collected along a two mile traverse centered at the indicated coordinates.

Geologic setting

Geologic description

During a study of the geology, petrology, and paleontology of the Cretaceous Nanushuk Group in northwestern Alaska, Huffman (1979) collected 34 samples of sandstone and shale in a stratigraphic section about 4,600 feet thick on the south limb of the Barbara syncline. The samples contained an average of 7.30 parts per million (ppm) thorium and 1.58 ppm uranium; the maximum values were 16.14 ppm thorium and 3.17 ppm uranium.
Geologic map unit (-162.694862286375, 69.4160843406089)
Mineral deposit model Sandstone-hosted U.
Age of mineralization Cretaceous or younger based on the age of the host rock.

Production and reserves

Workings or exploration Probably only sampling by government geologists in the course of stratigraphic and petrologic studies.
Indication of production None