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  3. Mineral Resource Data System (MRDS)

Nenana

Prospect in Alaska, United States with commodities Copper, Zinc, Silver
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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 10307546
Record type Site
Current site name Nenana

Geographic coordinates

Geographic coordinates: -147.6398, 63.49263 (WGS84)
Relative position The Nenana prospect is at an elevation of about 4,800 feet, 1.75 miles west southwest of VABM 5756 (Fork). The map site is in the SW1/4 of sec. 30, T. 16 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This is location A-76 of Balen (1990: OFR 34-90).

Site location context

Political divisions (FIPS codes)

Denali(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)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Pyrite Ore

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -147.6398, 63.49263
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The area of the Nenana 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, and by Upper Cretaceous?-Lower Tertiary granites (Wilson and others, 1998). The prospect consists of pyrite?, chalcopyrite, and sphalerite disseminated in the sedimentary rocks.
  • Age = the sulfide minerals probably are syngenetic with their Upper Triassic host rocks.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Bonnifield

Comments on the workings information

  • Workings / Exploration = Exploration consisted of rock-chip and soil sampling (unpublished report for the New Alaska Syndicate, 1977).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Balen, 1990 (OFR 34-90)

General comments

Subject category Comment text
Deposit Model Name = Besshi massive sulfide (Cox and Singer, 1986; model 24b)

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.