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Maiyumerak Mtn. Occurrence

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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Land status
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10003136
MRDS ID A015669
Record type Site
Current site name Maiyumerak Mtn. Occurrence

Geographic coordinates

Geographic coordinates: -162.03699, 67.78278 (WGS84)
Location accuracy 2000(meters)

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Noatak D-1(quadrangle 1:63,360 scale)

Noatak NE(quadrangle 1:100,000 scale)

Noatak(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower 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 Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Gangue

Nearby scientific data

(1) -162.03699, 67.78278
ListMap

Economic information

Comments on the geologic information

  • THE MAIYUMERAK MOUNTAINS ARE CONSIDERED TO BE PART OF THE ASIK MOUNTAIN PLUTON. SERPENTINE AND DARK GREEN TO BLACK BASALT WITH AMYGDULES FILLED WITH CALCITE AND EPIDOTE APPEAR TO BE THE MOST COMMON ROCK TYPES. THE SERPENTINE COMMONLY CONTAINS SMALL AMOUNTS OF FINE-GRAINED PYRITE AS DISSEMINATIONS AND FRACTURE FILLINGS. THE WEATHERING OF PYRITE PRODUCES LARGE ORANGE TO RED STAINED AREAS ON OUTCROPS AND ALONG STREAMS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Noatak

Land status

Ownership category National Park

Reference information

Bibliographic references

  • Deposit

    USBM OF 103-78, P. 241-249, 491.

  • Deposit

    USGS OF 81-767B, P. B13.

General comments

Subject category Comment text
Deposit MINOR AMOUNTS OF PYRITE AND CHALCOPYRITE IN SERPENTINE AND BASALT.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1987 Powers, M.T. (Huber, D.F.) 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.