|Quadrangle map, 1:250,000-scale||CH|
|Quadrangle map, 1:63,360-scale||D-6|
|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 descriptionThe 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.|
|Indication of production||Undetermined|
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.
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.
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|