Unnamed (north side of Carl Creek)

Prospect in Alaska, United States with commodities Copper, Gold, Molybdenum, Silver
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Mineral rights holdings
  14. Land status
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10093989
MRDS ID A011416
Record type Site
Current site name Unnamed (north side of Carl Creek)
Alternate or previous names Carl Creek, Cccu 1-101
Related records 10234247

Geographic coordinates

Geographic coordinates: -141.5886, 62.0486 (WGS84)
Relative position Two altered areas of about 100 m by 200 m each lie within 1 mi radius of lat-long coordinates. Best location: Richter and Jones, 1973, USGS I-749; N of?Carl Creek; within 500 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-2(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
Gold Secondary
Molybdenum Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Orthoclase Gangue
Quartz Gangue
Bornite Unknown
Magnetite Unknown
Molybdenite Unknown

Alteration

  • (Local) Sericite

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Chisana Formation
    Rock description Chisana Formation
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -141.5886, 62.0486

Economic information

Comments on the geologic information

  • Geologic Description = Pyrite and chalcopyrite in quartz veinlets and in disseminations in 111 m.y.-old biotite-hornblende granodiorite and biotite-quartz monzonite that intrude volcanic rocks of the Upper Cretaceous Chisana Formation.
  • Age = Cretaceous

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant Yes

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Federal

Ownership information

  • Type Operator
    Owner Donald Dippel
    Home office Alaska
    Year 1983

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Inferred 14510000mt ore
    Total resources 14510000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper 0.2 wt-pct Copper Primary 1979

Comments on the workings information

  • Workings / Exploration = Average grade from surface sampling: 0.10% Cu, all samples below 1.5% Cu, and less than 0.01% Mo (Richter and others, 1975, USGS MF-655-K, loc. 45 and 46).

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Model Name = Stockwork, porphyry
Deposit Other Comments = One of 8 porphyry copper deposits which together make up the known principal mineral resource potential of the Nabesna quadrangle; see also Horsfeld (NB099), Bond Creek (NB051), Orange Hill NB043), and Baultoff (NB100) deposits.

Reporter information

Type Date Name Affiliation Comment
Reporter 28-JAN-97 Leonard, K.R. U.S. Geological Survey
Reporter 28-JAN-97 Elliott, R.L. U.S. Geological Survey
Reporter 28-JAN-97 Nokleberg, W.J. U.S. Geological Survey
Reporter 28-JAN-97 W.J.; Richter, D.H. U.S. Geological Survey
Reporter 12-FEB-88 Carnes, R. David U.S. Bureau of Mines

Beyond USGS

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

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.