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

Iyikrok Mountain Chromite

Occurrence in Alaska, United States with commodity Chromium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10111713
MAS/MILS ID 0020260005
Record type Site
Current site name Iyikrok Mountain Chromite

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -163.64122, 67.95222 (WGS84)
Elevation 610
Location accuracy 100(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-4(quadrangle 1:63,360 scale)

Noatak NE(quadrangle 1:100,000 scale)

Noatak C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Wulik-Kivalina Rivers(hydrologic unit)

Noatak River-Lisburne Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Kateel River 030 N 022 W 35 S2 Alaska

Commodities

Commodity Importance
Chromium Critical Primary

Nearby scientific data

Ore Body (1) -163.64122, 67.95222
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 OTHER
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control UNKNOWN
    Date of Last Modification 910625

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Lisburne

Mineral rights holdings

Type of mineral rights Minerals Only

Land status

Ownership category BLM Administrative Area

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Inferred 240000mt ore
    Total resources 240000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 3.5 wt-pct Chromium Major 1985

Reference information

Bibliographic references

  • Deposit

    BM UNPB

  • Deposit

    USGS OFR 89-648

  • Deposit

    AAPG BULL V 62, #9, 1696-1702

  • Deposit

    USGS OFR 83-779

  • Deposit

    USBM OFR 97-85

  • Deposit

    USBM IC 9087, 23-29

Comments on the references

  • FOLEY, BARKER, DAHLIN, AND BROWN, 1984, P. 14-16 (BOM OFR)

General comments

Subject category Comment text
Deposit SOUTHWORTH AND BARKER, 1982 (UNPB BOM RPT) PROSPECT AREA CONTAINS 2 LOW-GRADE DEPOSITS (ABOUT 4 PCT CHROMITE), 20 OTHER UNMEASURED LODE OCCURRENCES, AND MINOR PLACER POTENTIAL.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-JUN-1991 Hfd U.S. Bureau of Mines

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.