Unnamed (tributary to East Fork Chulitna River)

Occurrence in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10307564
Record type Site
Current site name Unnamed (tributary to East Fork Chulitna River)

Geographic coordinates

Geographic coordinates: -148.9628, 63.1696 (WGS84)
Relative position This occurrence of placer gold is on an unnamed southeast-flowing tributary of the East Fork Chulitna River. The placer extends upstream from the map site, which is in the SE1/4 of sec. 19, T. 20 S., R. 7 W., of the Fairbanks Meridian. This is location D-3 of Balen (1990: OFR 34-90).
(click for info)

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) -148.9628, 63.1696

Comments on the geologic information

  • Geologic Description = This tributary drains an area underlain by Lower Cretaceous or Upper Jurassic turbidites and Lower Tertiary volcanic rocks (Wilson and others, 1998). Of 13 placer samples collected the highest values were 360 ppb gold and 110 ppm tin (Balen, 1990: OFR 34-90). The source of the placer gold and tin is unknown.
  • Age = Quaternary.

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Probably inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Surface workings only to date.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF HE141

Bibliographic references

  • Deposit

    Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.

  • Deposit

    Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 17 p., 2 sheetsm, scale 1:500,000.

Comments on the references

  • Primary Reference = Balen, 1990 (OFR 34-90)

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 07-APR-00 N. Van Wyck Stevens Exploration Management Corporation