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

Unnamed (head of Little Creek)

Occurrence in Alaska, United States with commodities Copper, Molybdenum, Gold
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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. Alteration
  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 10000780
MRDS ID A011424
Record type Site
Current site name Unnamed (head of Little Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -141.18359, 62.05999 (WGS84)
Relative position Best location: Richter and others, 1973, USGS I-807, loc. 8. Accurate within 100 ft radius

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Nabesna SE(quadrangle 1:100,000 scale)

Nabesna(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
Molybdenum Primary
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) Limonite-stained altered area covers area 50 by 100 meters.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -141.18359, 62.05999
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Disseminated pyrite and chalcopyrite in small stock of diorite porphyry of Cretaceous-Tertiary age that intrudes Jurassic-Cretaceous marine sedimentary rocks.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Average grade from surface sampling: <0.10% Cu and <0.01% Mo, gold reported present, but no assay data given (USGS MF-655K, loc. 54). Type of workings: surface.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Richter and others, 1973, USGS I-807

General comments

Subject category Comment text
Deposit Model Name = Lode: porphyry
Deposit Other Comments = the small stock at this location may be a marginal facies of the Klein Creek batholith

Reporter information

Type Date Name Affiliation Comment
Reporter 10-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 10-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 10-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.