Cape Chiniak

Prospect in Alaska, United States with commodity Platinum

Geologic information

Identification information

Deposit ID 10003559
MRDS ID A106317
Record type Site
Current site name Cape Chiniak

Geographic coordinates

Geographic coordinates: -152.15243, 57.61942 (WGS84)
Relative position Approximate location is along the coast west of Cape Chiniak. Location is accurate to within 1 mile.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Platinum Primary

Materials information

Materials Type of material
Platinum Ore

Mineral occurrence model information

Model code 120
USGS model code 39b
BC deposit profile C01. C02
Deposit model name Placer PGE-Au

Nearby scientific data

(1) -152.15243, 57.61942

Comments on the geologic information

  • Geologic Description = Platinum has been dredged off the coast of Cape Chiniak by fishermen using suction dredges. The source may be mafic and ultramafic rocks in the Ghost Rocks Formation.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Active

Mining district

District name Kodiak

Comments on the workings information

  • Workings / Exploration = Platinum dredged by fishermen using suction dredges off Cape Chiniak (S.W. Nelson, USGS, oral communication, 1992).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A106317
USGS Alaska Resource Data File ARDF KD032

Bibliographic references

  • Deposit


  • Deposit

    Stevens, D.L., 2001, Alaska Resource Data File, Healy quadrangle: U. S. Geological Survey Open-File Report 01-109, 441 p.

Comments on the references

  • Primary Reference = This record

General comments

Subject category Comment text
Deposit Model Name = Placer PGE-Au (Cox and Singer, 1986; model 39b).

Reporter information

Type Date Name Affiliation Comment
Reporter 13-OCT-1998 S.H. Pilcher U.S. Geological Survey