Nutirwik Creek

Occurrence in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10307346
Record type Site
Current site name Nutirwik Creek

Geographic coordinates

Geographic coordinates: -149.67339, 67.94972 (WGS84)
Relative position 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.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
BC deposit profile C01. C02
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -149.67339, 67.94972

Comments on the geologic information

  • 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.
  • Age = Quaternary.

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Not determined

Mining district

District name Koyukuk

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF CH108

Bibliographic references

  • Deposit

    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).

  • Deposit

    DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.

  • Deposit

    Dillon, J.T., 1987, Upper Koyukuk District land and mining claim status current to 1985: Alaska Division of Geological and Geophysical Surveys Public-Data File 87-11, 1 sheet, scale 1:125,000.

  • Deposit

    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.

Comments on the references

  • Primary Reference = Dillon, 1987

General comments

Subject category Comment text
Deposit Model Name = Placer Au (Cox and Singer, 1986; model 39a)

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-99 J.M. Britton U.S. Geological Survey