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Big Joe Creek

Occurrence in Alaska, United States with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

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.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chandalar B-3(quadrangle 1:63,360 scale)

Chandalar S(quadrangle 1:100,000 scale)

Chandalar C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

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
    Rock type
    Stratigraphic age (youngest) Devonian

Nearby scientific data

(1) DPxacs
ListMap

Economic information

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 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

Bibliographic references

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

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.