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  3. Mineral Resource Data System (MRDS)

Unnamed (terminus of Nabesna Glacier)

Prospect in Alaska, United States with commodities Copper, Silver, 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. Host and associated rocks
  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 10000750
MRDS ID A011391
Record type Site
Current site name Unnamed (terminus of Nabesna Glacier)
Alternate or previous names Nabesna River

Geographic coordinates

Geographic coordinates: -142.9206, 62.19052 (WGS84)
Relative position Best location: Richter, 1973, USGS I-789, loc. 6. Accurate within 100 ft radius

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nabesna A-4(quadrangle 1:63,360 scale)

Nabesna SW(quadrangle 1:100,000 scale)

Nabesna C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -142.9206, 62.19052
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Stockwork of quartz-pyrite veins and veinlets, containing minor chalcopyrite, cuts altered Tertiary hornblende dacite dike and Triassic Nikolai Greenstone country rock.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Some drilling in this deposit indicates grades as high as 0.3% Cu with minor Ag and Zn values (USGS MF-655K); Type of workings: surface

Reference information

Bibliographic references

  • Deposit

    Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.

  • Deposit

    Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

Comments on the references

  • Primary Reference = Richter, 1973, USGS I-789

General comments

Subject category Comment text
Deposit Model Name = Lode: stockwork
Deposit Other Comments = See also: Nabesna Glacier prospect (NB048)

Reporter information

Type Date Name Affiliation Comment
Reporter 05-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 05-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 05-FEB-1997 Richter, D.H. U.S. Geological Survey

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.