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

Unnamed (west of Oyukak Mountain)

Occurrence in Alaska, United States with commodities Arsenic, Antimony
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10308326
Record type Site
Current site name Unnamed (west of Oyukak Mountain)

Geographic coordinates

Geographic coordinates: -155.5792, 67.57428 (WGS84)
Relative position This occurrence is at an elevation of about 5300 feet on a ridge approximately 2 miles west of Oyukak Mountain. It is in the S1/2 sec. 7, T. 25 N., R. 15 E., of the Kateel River Meridian. The location is accurate to within 200 ft. The site corresponds to locality 11 of Grybeck and Nelson (1981).

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Survey Pass C-6(quadrangle 1:63,360 scale)

Survey Pass N(quadrangle 1:100,000 scale)

Survey Pass(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

Gates of the Arctic National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Arsenic Critical Secondary
Antimony Critical Secondary

Alteration

  • (Local) Oxidized sulfides.

Nearby scientific data

(1) -155.5792, 67.57428
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence consists of a grab sample of pyrite-bearing oxidized zones in calcareous siltstone of the Devonian Skagit Limestone. Assays of the sample showed 300 ppm As and 300 ppm Sb (Nelson and Grybeck, 1980; Grybeck and Nelson, 1981). The occurrence apparently is only of local extent.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Comments on the workings information

  • Workings / Exploration = Work restricted to surface sampling of outcrop during geologic mapping by USGS in the late 1970s.

Reference information

Bibliographic references

  • Deposit

    Nelson, S.W., and Grybeck, D.J., 1980, Geologic map of the Survey Pass quadrangle, Brooks Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1176-A, 2 sheets, scale 1:250,000.

  • Deposit

    Grybeck, D.J., and Nelson, S.W., 1981, Mineral deposit map of the Survey Pass quadrangle, Brooks Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1176-F, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Grybeck and Nelson, 1981

General comments

Subject category Comment text
Deposit Other Comments = Site is in Gates of the Arctic National Park.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-SEP-99 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.