1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (east of lower Nizina 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. 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 10001049
MRDS ID A011727
Record type Site
Current site name Unnamed (east of lower Nizina Glacier)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -142.42248, 61.62274 (WGS84)
Relative position 1,000 ft east of Nizina Glacier, 3 mi up-glacier from toe. Best location: MacKevett, 1970. Accurate within radius of 100 feet.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McCarthy C-4(quadrangle 1:63,360 scale)

McCarthy NE(quadrangle 1:100,000 scale)

McCarthy C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chitina River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcocite Ore
Malachite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Moonshine Creek Formation; Chiefly Silstone And Sandstone
    Rock description Moonshine Creek Formation; Chiefly Silstone And Sandstone

Nearby scientific data

(1) -142.42248, 61.62274
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Chalcocite- and malachite-bearing quartz-calcite veins up to 20 cm thick in Triassic Nikolai Greenstone. Near major fault juxtaposing Nikolai Greenstone against Cretaceous Moonshine Creek Formation.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nizina

Comments on the workings information

  • Workings / Exploration = None

Reference information

Bibliographic references

  • Deposit

    MacKevett, E.M., Jr., 1970, Geologic map of the McCarthy C-4 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-844, scale 1:63,360.

  • Deposit

    MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

Comments on the references

  • Primary Reference = MacKevett, 1970

General comments

Subject category Comment text
Deposit Model Name = Lode: vein

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-1997 Leonard, K.R. U.S. Geological Survey
Reporter 31-JUL-1997 Elliott, R.L. U.S. Geological Survey
Reporter 31-JUL-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.