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  3. Mineral Resource Data System (MRDS)

Unnamed (head of Chathenda Creek)

Prospect 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. 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 10000773
MRDS ID A011415
Record type Site
Current site name Unnamed (head of Chathenda Creek)
Alternate or previous names Johnson Creek
Related records 10231888

Geographic coordinates

Geographic coordinates: -141.6275, 62.11165 (WGS84)
Relative position Best location: Richter and Jones, 1973, USGS I-749; N 1/2 of SW 1/4, Sec. 19, T.4 N., R.21 E. Accurate within 1000 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
Molybdenum Primary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) Hornfels

Nearby scientific data

(1) -141.6275, 62.11165
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Disseminated pyrite and chalcopyrite in small diorite/granodiorite stock of Cretaceous age and surrounding metamorphosed country rock. Stock intrudes Upper Jurassic to Lower Cretaceous hornfelsed argillite?? /
  • Age = Cretaceous

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Assays show 0.15% Cu and less than 0.01% Mo (USGS MF-655K, loc. 44). Type of workings: surface

Reference information

Bibliographic references

  • Deposit

    Richter, D.H., and Jones, D.L., 1973, Reconnaissance geologic map of the Nabesna A-2 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-749, scale 1:63,360.

  • Deposit

    Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

  • Deposit

    Hollister, V.F., Anzalone, S.A., and Richter, D.H., 1975, Porphyry copper belts of southern Alaska and contiguous Yukon Territory: CIM (Canadian Mining and Metallurgical) Bulletin, v. 68, no. 756, p. 104-112.

  • Deposit

    Richter, D.H., and Matson, N.A., 1970, Geochemical data from the Nabesna A-2 quadrangle, Alaska: U.S. Geological Survey Open-File Report 70-275, 12 p., 1 sheet, scale 1:63,360.

Comments on the references

  • Primary Reference = Richter and Matson, 1970, USGS OF 397, loc 3.

General comments

Subject category Comment text
Deposit Model Name = Lode: porphyry
Deposit Other Comments = See also: Carl Creek (NB082)

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 04-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 04-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.