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  3. Mineral Resource Data System (MRDS)

Nelson

Past Producer in Alaska, United States with commodities Copper, 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 10100963
MRDS ID A011706
Record type Site
Current site name Nelson
Related records 10258122

Geographic coordinates

Geographic coordinates: -142.38553, 61.45079 (WGS84)
Relative position Near junction of Glacier Creek and Chitistone River. 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)

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
Silver Secondary

Comments on the commodity information

  • Ore Material = unknown Ag minerals.
  • Ore Material = Copper (native)
  • Ore Material = unknown Ag minerals.

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Enargite Ore
Malachite Ore
Copper Ore
Calcite Gangue
Dolomite Gangue
Pyrite Gangue

Mineral occurrence model information

Model code 87
USGS model code 23
Deposit model name Basaltic Cu (BC name is Volcanic redbed Cu)
Mark3 model number 118

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;
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Chitistone Limestone;Chitistone Limestone
    Rock description Chitistone Limestone;Chitistone Limestone

Nearby scientific data

(1) -142.38553, 61.45079
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Prospect lies on NE limb of a broad NW-trending syncline cut by two major faults: a thrust fault striking about N 45 W and dipping SW along which the Nikolai Greenstone has overridden a section of Chitistone Limestone; and a high-angle normal fault striking about N 25 E. Stringers and discontinuous masses of disseminated to massive chalcocite and covellite and minor enargite, bornite, chalcopyrite, malachite, and native copper as replacements of limestone and dolomite along steeply inclined narrow fissures and bedding planes. Prospect is in near-basal part of a faulted block of Upper Triassic Chitistone Limestone. Local faulting and shearing.
  • Age = Cretaceous

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nizina

Comments on the production information

  • Production Notes = Minor production 1929-1930.

Comments on the workings information

  • Workings / Exploration = Explored by surface pits and 5 short adits on 4 levels. About 1,100 ft of underground workings driven between 1929 and 1930; 3 adits were still accessible in 1951. Also explored by diamond drilling. Chip samples across massive sulfide veins assayed > 2 percent Cu, 0.3 percent As, 50 ppm Ag, (MacKevett and Smith, 1968). Type of workings: Surface and underground

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Bateman, 1932

General comments

Subject category Comment text
Deposit Model Name = Basaltic Cu
Deposit Other Comments = See also: Radovan (MC160- MC078) and Kennicott (MC003) deposits.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-JUL-97 Leonard, K.R. U.S. Geological Survey
Reporter 11-JUL-97 Elliott, R.L. U.S. Geological Survey
Reporter 11-JUL-97 Nokleberg, W.J. U.S. Geological Survey
Reporter 11-JUL-97 Richter, D.H. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.