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Duke Island

Occurrence in Alaska, United States with commodities Platinum, Palladium, Copper, Chromium, Nickel, Iron
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10038112
MRDS ID M045394
Record type Site
Current site name Duke Island

Geographic coordinates

Geographic coordinates: -131.3423, 54.90807 (WGS84)
Relative position 55 MI. NW PRINCE RUPERT, B.C.

Site location context

Political divisions (FIPS codes)

Prince of Wales-Hyder(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Prince Rupert D-5(quadrangle 1:63,360 scale)

Duke Island(quadrangle 1:100,000 scale)

Prince Rupert(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ketchikan(hydrologic unit)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Platinum Critical Tertiary
Palladium Critical Tertiary
Copper Tertiary
Chromium Critical Tertiary
Nickel Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore

Analytical data

Result CONCENTRATIONS IN PPM, PT= .037, PD= .033, RH= .010 MAX., CLARK AND GREENWOOD 1972

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -131.3423, 54.90807
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Ketchikan District

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    CLARK AND GREENWOOD, 1972, USGS PROF. PAPER 800 C, P. C159

  • Deposit

    IRVINE, 1959

  • Deposit

    BERG AND COBB, 1967, P. 183 (B1246)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1975 Blair, Will N. 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.