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Unnamed (west wall of West Fork Glacier)

Prospect in Alaska, United States with commodities Silver, Copper, Zinc
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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 10307548
Record type Site
Current site name Unnamed (west wall of West Fork Glacier)

Geographic coordinates

Geographic coordinates: -147.5918, 63.47363 (WGS84)
Relative position This prospect is at an elevation of about 4,200 feet in a creek draining the west wall of West Fork Glacier. The map site is in the NW1/3 of sec. 5, T. 17 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 26 of Cox and others (1989), location A-74 of Balen (1990: OFR 34-90).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy B-2(quadrangle 1:63,360 scale)

Mount Hayes SW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrrhotite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Nearby scientific data

(1) -147.5918, 63.47363
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The are of this prospect is underlain by Upper Triassic, thin-bedded, commonly cross-bedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata are cut by numerous dikes, sills, and plugs of altered diabase and gabbro (Wilson and others, 1998), and by Upper Cretaceous?-Lower Tertiary granites. The strata are complexly folded. The prospect is described as a polymetallic replacement deposit containing chalcopyrite, pyrrhotite, and sphalerite (Cox and others, 1989).

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Surface exploration only, to date. Soil sampling, stream-sediment sampling, ground EM and magnetic geophysical surveys were conducted in the mid-1970's (unpublished report for the New Alaska Syndicate, 1977).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Cobb, 1978 (OFR 78-1062)

General comments

Subject category Comment text
Deposit Model Name = Polymetallic replacement (Cox and Singer, 1986; model 19a)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 N. Van Wyck Stevens Exploration Management 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.