Nutirwik Creek

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale CH
Quadrangle map, 1:63,360-scale D-6
Latitude 67.95
Longitude -149.67
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is approximately 4 miles above the mouth of Nutirwik Creek (sec. 18, T. 36 N., R. 9 W., of the Fairbanks Meridian). Nutirwik Creek is a west-flowing tributary to Dietrich River located about 10 miles north of Snowden Mountain. The location is accurate with a 1/2-mile radius.

Geologic setting

Geologic description

The only descriptions of this occurrence are references by the U.S. Bureau of Mines (1973) and Dillon (1987) to evidence of placer mining activity and by the location of claims in 1976. The country rocks in the area are shown by DeYoung (1978) to be principally Devonian Hunt Fork Shale and Devonian to Silurian Skajit Limestone with lesser Devonian slate, phyllite, limestone, and siltstone. No descriptive information is available.
Geologic map unit (-149.672785465603, 67.9496006693341)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Indication of production Undetermined

References

MRDS Number 10307346

References

Maas, K.M., 1987, Maps summarizing land availability for mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Open-File Report 10-87, 33 quadrangle overlays.
U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims: U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).
Reporters J.M. Britton (Anchorage)
Last report date 11/17/1999