Big Joe Creek

Occurrence in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10001763
MRDS ID A012551
Record type Site
Current site name Big Joe Creek
Related records 10281631

Geographic coordinates

Geographic coordinates: -148.31328, 67.45973 (WGS84)
Relative position The site is located at an elevation of about 3,800 ft approximately 5 3/4 miles southeast of Chandalar near the head of Big Joe Creek, a tributary to Big Creek (sec. 31, T. 31 N., R. 3 W., of the Fairbanks Meridian). The location is approximated from loc. 8 in DeYoung (1978). The location is accurate within a 1-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
Quartz Gangue

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Stratigraphic age (youngest) Devonian

Nearby scientific data

(1) -148.31328, 67.45973

Comments on the geologic information

  • Geologic Description = The prospect is described only as gold in a quartz vein (Brosgi and Reiser, 1972) in an area mapped as Devonian(?) black, fine-grained quartz-muscovite-chlorite schist with intercalated Devonian(?) green, schistose hornblende diorite and pyroxene diorite sills and andesitic flows(?) (Brosgi and Reiser, 1964). A rock sample from this occurrence contained 0.04 to 0.079 ppm Au. No other descriptive information is available for this occurrence.
  • Age = Middle Cretaceous based on arguments by Dillon (1982) that the age of emplacement of the gold-bearing quartz veins of the Koyukuk and Chandalar districts was between the Neocomian metamorphism of the Devonian host rocks and their erosional unroofing and cooling in Albian time.
  • Age = Host rock is Devonian.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chandalar

Comments on the workings information

  • Workings / Exploration = No information available.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012551
USGS Alaska Resource Data File ARDF CH015

Bibliographic references

  • Deposit

    Brosgi, W.P., and Reiser, H.N., 1972, Geochemical reconnaissance in the Wiseman and Chandalar districts and adjacent region, southern Brooks Range, Alaska: U.S. Geological Survey Professional Paper 709, 21 p.

  • 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

    Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    Dillon, J.T., 1982, Source of lode and placer gold deposits of the Chandalar and upper Koyukuk Districts: Alaska Division of Geological and Geophysical Surveys Open-File Report 158, 25 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Brosgi and Reiser, 1972

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins(?) (Cox and Singer, 1986; model 36a)

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1999 J.M. Britton U.S. Geological Survey