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  3. Mineral Resource Data System (MRDS)

Unnamed (south wall of lower Yanert Glacier)

Occurrence in Alaska, United States with commodity 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 10307545
Record type Site
Current site name Unnamed (south wall of lower Yanert Glacier)

Geographic coordinates

Geographic coordinates: -147.71281, 63.58963 (WGS84)
Relative position This occurrence is at an elevation of about 5,000 feet, on the south wall of lower Yanert Galcier. The map site is about 4.8 miles northeast of Nenana Mountain, in the NE1/4 of sec. 27, T. 15 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within half a mile. This is locality 21 of Cox and others (1989).

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

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

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore

Alteration

  • (Local) Formation od skarn at granite contact.

Mineral occurrence model information

Model code 59
USGS model code 18b
Deposit model name Skarn Cu
Mark3 model number 8

Nearby scientific data

(1) -147.71281, 63.58963
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at this occurrence are Upper Triassic calcareous metasedimentary rocks and Jurassic to Cretaceous graywacke, intruded by Tertiary granite. The deposit consists of chalcopyrite-pyrite-pyrrhotite-bearing skarn at the granite contact (Cox and others, 1989).
  • Age = Probably Tertiary.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Bonnifield

Comments on the workings information

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

Reference information

Bibliographic references

  • Deposit

    Cox, D.P., Light, T.D., Csejtey, Bela, Jr., and Campbell, D.L., 1989, Mineral resource assessment map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map, MF-2058-A, scale 1:250,000.

Comments on the references

  • Primary Reference = Cox and others, 1989

General comments

Subject category Comment text
Deposit Model Name = Cu skarn (Cox and Singer, 1986; model 18b)

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.