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Willow Creek

Prospect in Alaska, United States with commodities Antimony, Gold, Tin, Tungsten
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308903
MRDS ID A015500
Record type Site
Current site name Willow Creek
Related records 10232790, 10002993

Geographic coordinates

Geographic coordinates: -147.45296, 65.06268 (WGS84)
Relative position Cobb (1972, MF-413), loc. 88; NE1/4 sec. 25, T. 3 N., R. 1 E., of the Fairbanks Meridian. This prospect is situated in the bed of Willow Creek, about 100 yards from its mouth. Willow Creek is a tributary of Cleary Creek.

Site location context

Political divisions (FIPS codes)

Fairbanks North Star(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Livengood A-1(quadrangle 1:63,360 scale)

Circle SW(quadrangle 1:100,000 scale)

Livengood(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Antimony Critical Primary
Gold Secondary
Tin Critical Secondary
Tungsten Critical Secondary

Materials information

Materials Type of material
Cassiterite Ore
Gold Ore
Scheelite Ore
Stibnite Ore

Mineral occurrence model information

Model code 180
USGS model code 27d
Deposit model name Simple Sb (veins, pods, etc)

Nearby scientific data

(1) Pze
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This antimony prospect was uncovered during placer mining operations and was described by Henry Joesting in a report to the Alaska Territorial Department of Mines in 1942. The antimony ore occurs as stibnite in a zone of white quartz and gouge that strikes east-west, across the valley of Willow Creek (Joesting, 1942; ATDM PE 49-7). In the hydraulic cut, where the overburden and gravel have been removed, high-grade ore could be traced continuously from the west side of the cut to the creek, a distance of about 75 feet. Ore is also found on the east side of the cut, about 100 feet from the creek. Between these two showings of ore, the zone consists mainly of quartz and gouge, with minor amounts of stibnite and pyrite, and occasionally arsenopyrite. Some pieces of high-grade stibnite found on the surface measured about a foot across. Most of the ore is fine-grained and massive with a minor portion made up of coarse bladed crystals. The higher grade portions contained 56 percent antimony. Small amounts of pyrite and arsenopyrite occur in the lower grade material. The bedrock is mainly a soft, badly weathered mica schist, containing considerable clay. The schist strikes east-west and dips steeply north. Several thin limestone beds were noted. A few of these beds, about 100 feet upstream from the stibnite, contain sphalerite and pyrite. Numerous small veins and lenses of quartz were also noted in the bedrock. Most veins are glassy, but some contain small amounts of pyrite, arsenopyrite, and sphalerite.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the workings information

  • Workings / Exploration = The vein was exposed by a hydraulic cut during placer mining operations.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Joesting, 1942 (ATDM PE 49-7)

General comments

Subject category Comment text
Deposit Model Name = Stibnite-quartz vein (Cox and Singer, 1986; model 27d).

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1999 C.J. Freeman, J.R. Guidetti Schaefer Avalon Development Corporation

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.