1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Unnamed

Occurrence in Alaska, United States with commodity Copper
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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 10086674
MRDS ID A011904
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -157.04358, 67.86956 (WGS84)
Relative position Located in pass between small, unnamed hills south of the Noatak River in T. 29 N., R. 8 E., Kateel River Meridian. Shown as locality 67 in Mayfield and Grybeck (1978) and is accurate to within 2000 ft. (600 m).????

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ambler River D-3(quadrangle 1:63,360 scale)

Ambler River NE(quadrangle 1:100,000 scale)

Ambler River C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Noatak River(hydrologic unit)

Noatak River-Lisburne Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Noatak 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

Materials information

Materials Type of material
Azurite Ore
Chalcopyrite Ore
Malachite Ore

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -157.04358, 67.86956
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Chalcopyrite, malachite and azurite coat fracture surfaces in quartzite. Nearby occurrences include a small gossan on limestone-phyllite outcrop that contains 1800 ppm Cu and 5 ppm Ag, and a small, malachite-bearing quartz vein that cuts marble.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Mayfield and Grybeck, 1978

General comments

Subject category Comment text
Deposit Model Name = Pollymetallic vein? (see Schmidt and Werdon, 1993, p. 143)
Deposit Other Comments = Occurrence is within Noatak National Preserve.? ?

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1997 K.R. Leonard U.S. Geological Survey
Reporter 04-MAY-1997 R.L. Elliott U.S. Geological Survey
Reporter 04-MAY-1997 J.M. Schmidt U.S. Geological Survey
Reporter 04-MAY-1997 S.W. Nelson 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.