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  3. Mineral Resource Data System (MRDS)

Avalanche Debris Float

Occurrence in Alaska, United States with commodities Chromium, Cobalt, Copper, Gold, Nickel, Palladium, Platinum
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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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10233629
MAS/MILS ID 0021110139
Record type Site
Current site name Avalanche Debris Float

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -137.49384, 58.87111 (WGS84)
Elevation 1978
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Hoonah-Angoon(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fairweather D-5(quadrangle 1:63,360 scale)

Mount Fairweather NE(quadrangle 1:100,000 scale)

Mount Fairweather(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Glacier Bay(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Glacier Bay 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

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 035 S 048 E 19 N2SWNE Alaska

Commodities

Commodity Importance
Chromium Critical Tertiary
Cobalt Critical Tertiary
Copper Primary
Gold Tertiary
Nickel Critical Tertiary
Palladium Critical Tertiary
Platinum Critical Tertiary

Materials information

Materials Type of material
Olivine Unknown
Plagioclase Unknown
Pyroxene Unknown

Nearby scientific data

Ore Body (1) -137.49384, 58.87111
ListMap

Economic information

Ore body information

  • Area 10HA
    Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 UNKNOWN
    Type of Orebody #2 UNKNOWN
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Total Surface Area (HA) 10
    Date of Last Modification 830408

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1968

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Minerals Only

Land status

Ownership category National Wilderness

Reference information

Bibliographic references

  • Deposit

    P700B pp. 21-26

  • Deposit

    OF78-494 pp. C108-C118

General comments

Subject category Comment text
Deposit NO ALASKA KARDEX. NO RECORD EVER CLAIMED. ULTRAMAFIC ROCKS WERE FOUND IN AVALANCHE DEBRIS 2 1/2 MILES SOUTH AND A LITTLE EAST OF THE MOUNT-FAIRWEATHER SUMMIT ABOUT 6,500 FT IN A BASIN NEAR THE HEAD OF FAIRWEATHER GLACIER. HERE, ALTHOUGH MOST ROCKS WERE OF THE GABBRO CLAN, DUNITE, PYROXENITE, AND PERIDOTITE WERE ALSO FOUND. ANALYSES OF TWO SAMPLES GAVE VALUES IN PPM UP TO 6400 CU, 500 CR, 200 NI, 300 CO, .07 PT, .28 PD & 1.7 AU. GRAB SAMPLES WERE COLLECTED WITHIN THE MAPPED STOCK BOUNDARY WHERE ICE AND SNOW COVERED BEDROCK. FLOAT FROM WITHIN THE STOCK AND AREAS JUST OUTSIDE THE CONTACT WAS OBTAINED FROM OLD AVALANCHE PATHS CONTAINING SCATTERED ROCK DEBRIS.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-1988 Sbh 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.