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  3. Mineral Resource Data System (MRDS)

Siniktanneyak Mtn.

Occurrence in Alaska, United States with commodities Chromium, Silver
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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 10003154
MRDS ID A015687
Record type Site
Current site name Siniktanneyak Mtn.
Related records 10209107

Geographic coordinates

Geographic coordinates: -158.45368, 68.32954 (WGS84)
Relative position Location plotted is center of chromite zone shown by Jansons and Baggs (1980, p. 26), in T34N, R2E; in saddle on ridge line about 1 mi (1.6 km) east of Siniktanneyak Mountain summit; located to within 1 mi (1.6 km).??.

Site location context

Political divisions (FIPS codes)

North Slope(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Howard Pass B-5(quadrangle 1:63,360 scale)

Howard Pass SW(quadrangle 1:100,000 scale)

Howard Pass(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle 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
Chromium Critical Primary
Silver Secondary

Materials information

Materials Type of material
Chromite Ore

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite

Nearby scientific data

(1) -158.45368, 68.32954
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Peridotite in Jurassic? mafic-ultramafic complex contains widespread disseminated chromite and small chromite-bearing lenses, the largest being 8 in. thick and 12 ft. long (Jansons and Baggs, 1980, p. 65-9).
  • Age = Jurassic

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

  • Deposit

    Jansons, Uldis, and Baggs, D.W., 1980, Mineral investigations of the Misheguk Mountains and Howard Pass quadrangles, National Petroleum Reserve, Alaska: U.S. Bureau of Mines Open-File Report 38-80, 76 p.

  • Deposit

    Cobb, E.H., Mayfield, C.F., and Brosge, W.P., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in eleven quadrangles in northern Alaska (Arctic, Baird Mountains, Chandler Lake, DeLong Mountains, Demarcation Point, Howard Pass, Misheguk Mountain, Mount Michelson, Noatak, Point Lay, and Table Mountain); Supplement to Open-File Report 75-628; Part A, Summaries of data to January 1, 1981: U.S. Geological Survey Open-File Report 81-767-A, 25 p.

Comments on the references

  • Primary Reference = Jansons and Baggs (1980)

General comments

Subject category Comment text
Deposit Model Name = Lode; podiform chromite
Deposit Other Comments = See MAS/MILS Sequence #0020200006 (USBM, 1995)

Reporter information

Type Date Name Affiliation Comment
Reporter 30-SEP-1996 M.T. Powers U.S. Geological Survey
Reporter 30-SEP-1996 D.F. Huber U.S. Geological Survey
Reporter 30-SEP-1996 J.M. Schmidt U.S. Geological Survey
Reporter 30-SEP-1996 J.H. Dover 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.