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

Unnamed

Occurrence in Alaska, United States with commodities Antimony, Gold, Tungsten
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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 10001022
MRDS ID A011695
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -142.33357, 61.34274 (WGS84)
Relative position 1 mile northwest of headwaters of Eagle Creek. Best location: MacKevett and Smith, 1972. 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 B-4(quadrangle 1:63,360 scale)

McCarthy SE(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)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Antimony Critical Primary
Gold Secondary
Tungsten Critical Secondary

Materials information

Materials Type of material
Stibnite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Nizina Limestone
    Rock description Nizina Limestone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -142.33357, 61.34274
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = A series of stibnite-bearing quartz-calcite veins up to 25 cm thick in Triassic Nizina Limestone.

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 = No workings. Grab samples assayed as much as: 1.2 ppm Au, 700 ppm As, >10,000 ppm Sb,and 7,000 ppm W (MacKevett, 1976).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = MacKevett and Smith, 1968

General comments

Subject category Comment text
Deposit Model Name = Lode: vein

Reporter information

Type Date Name Affiliation Comment
Reporter 07-NOV-1997 Leonard, K.R. U.S. Geological Survey
Reporter 07-NOV-1997 Elliott, R.L. U.S. Geological Survey
Reporter 07-NOV-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.