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Unnamed (south of head of McCallie Creek)

Prospect in Alaska, United States with commodities Silver, Gold, Lead, Zinc, Copper
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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. Alteration
  8. Mineral occurrence model information
  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 10307520
Record type Site
Current site name Unnamed (south of head of McCallie Creek)

Geographic coordinates

Geographic coordinates: -149.96282, 63.09957 (WGS84)
Relative position This prospect is at an elevation of about 5,400 feet, on a ridge above the valley glaciers south of the head of McCallie Creek. The map site is about 0.5 mile south-south-west of peak 5480, in the NW1/4 of sec. 13, T. 21 S., R. 3 W., of the Fairbanks Meridian. The accuracy of the location is within 1 mile. This is location E-31 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 A-6(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chulitna 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
Gold Primary
Lead Primary
Zinc Critical Primary
Copper Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Stibnite Ore
Quartz Gangue

Alteration

  • (Local) Gossan developed at surface.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -149.96282, 63.09957
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at this prospect are Upper Triassic limestone and basalt flows. The deposit consists of disseminated sulfides in the country rocks, and a stockwork of sulfide-bearing quartz veinlets. The sulfide minerals are arsenopyrite, stibnite, chalcopyrite, galena, and sphalerite. The stockwork is about 100 feet wide, and is open along strike. Analyses of 27 samples gave maximum values of 0.9 ounces of gold per ton , 4.4 ounces of silver per ton, 1.8 percent lead, 1.2 percent zinc and 4 percent antimony (Balen, 1990: OFR 34-90).
  • Age = Late Triassic or younger.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Probably inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = There has only been surface sampling.

Reference information

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

    Balen, M.D., and others, 1991, Executive summary of the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Special Publication, 43 p.

  • 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.

Comments on the references

  • Primary Reference = Balen and others, 1991

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Deposit Other Comments = This deposit was discovered during regional geologic reconnaissance by the Bureau of LAnd Management (Balen and others, 1991).

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.