Leffingwell Glacier

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

Geologic information

Identification information

Deposit ID 10003107
MRDS ID A015639
Record type Site
Current site name Leffingwell Glacier

Geographic coordinates

Geographic coordinates: -144.12341, 69.32988 (WGS84)
Relative position Accurate to within 1,220 meters (4,000 ft.). Brosge' and Reiser, 1976, Location 25 and Grybeck, 1977, p. 39, Location 9;

Site location context

Political divisions (FIPS codes)

North Slope(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Michelson B-1(quadrangle 1:63,360 scale)

Mount Michelson SE(quadrangle 1:100,000 scale)

Mount Michelson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Camden Bay(hydrologic unit)

Eastern Arctic(hydrologic accounting unit)

Arctic Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Arctic National Wildlife Refuge(National Wildlife Refuge)

National Wildlife Refuge FWS(Type of land area)

FWS(Federal land areas administered by FWS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Molybdenum Primary
Molybdenum Secondary

Materials information

Materials Type of material
Molybdenite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Early Devonian
    Stratigraphic age (youngest) Early Devonian
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -144.12341, 69.32988

Economic information

Comments on the geologic information

  • Geologic Description = Scattered molydenite crystals and small aggregates of molybdenite that are less than 1.25 centimeters (.5 in. ) across are present at two localities in fresh granite of the Okpilak batholith.
  • Age = Probably Early Devonian

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Canning

Comments on the workings information

  • Workings / Exploration = None

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Sable, 1977

General comments

Subject category Comment text
Deposit Model Name = Lode; disseminated Mo

Reporter information

Type Date Name Affiliation Comment
Reporter 15-SEP-1996 Powers, M.T. U.S. Geological Survey
Reporter 15-SEP-1996 Huber, D.F. U.S. Geological Survey
Reporter 15-SEP-1996 Schmidt, J.M. U.S. Geological Survey
Reporter 15-SEP-1996 Kelley, J.S. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.