Unnamed (near mouth of Port Camden)

The Unnamed (near mouth of Port Camden) is a uranium and thorium mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Unnamed (near mouth of Port Camden)

Commodity

Primary: Uranium
Primary: Thorium

Location

State: Alaska
District: Kupreanof

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Sandstone U

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Unknown.

Rocks

Role: Host
Age Type: Host Rock
Age Young: Tertiary

Analytical Data

Not available

Materials

Not available

Comments

Comment (Geology): Age = Host rock is Tertiary.

Comment (Commodity): Ore Material = Unidentified radioactive minerals

Comment (Deposit): Model Name = Sandstone uranium (Cox and Singer, 1986; model 30c)

Comment (Exploration): Status = Probably inactive

Comment (Production): Production Notes = None

Comment (Commodity): Ore Material = Unidentified radioactive minerals

Comment (Reserve-Resource): Reserves = None

Comment (Reference): Primary Reference = Dickinson, 1979 (USGS OF 79-1427); Dickinson and Campbell, 1982

Comment (Workings): Workings / Exploration = Block of 30 claims staked in 1976 and active until at least 1981 (U.S. Bureau of Mines, 1980). Little indication of any work since.

Comment (Geology): Age = Tertiary or younger based on age of the host rock, the Tertiary Kootznahoo Formation.

Comment (Geology): Geologic Description = The Tertiary Kootznahoo Formation consists of light brown, poorly sorted, non-marine, dolomitic sandstone that contains clay clasts, carbonized wood fragments, and dolomitic concretions. The sandstone ranges from silty, fine-grained and thin-bedded to medium- and coarse-grained; it is partly conglomeratic, and medium- to thick-bedded. Siderite, magnetite, pyrite, and apatite are present in some lithologies. All carbonized wood fragments show radioactivity when tested in place. Readings range from 2 to 50 times background. One sample yields eU of 1300, plus-or-minus 400 ppm uranium, and gamma eU of 2300, plus-or-minus 700 ppm uranium. Samples from a four-inch-thick bed of fine-grained Tertiary sandstone contained 11 and 12 ppm uranium and up to 30 percent magnetite. (Description summarized from Eakins, 1975; Dickinson, 1979; Dickinson and Campbell, 1982; and Dickinson and Pierson, 1988.)

References

Reference (Deposit): Eakins, G.R., 1975, Uranium investigations in southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Geologic Report 44, 62 p.

Reference (Deposit): Dickinson, K.A., 1979, A uranium occurrence in the Tertiary Kootznahoo Formation on Kuiu Island, southeast Alaska: U.S. Geological Survey Open-File Report 79-1427, 5 p.

Reference (Deposit): U.S. Bureau of Mines, 1980, Claim map, Petersburg quadrangle, Alaska: U.S. Bureau of Mines Map 117, 1 sheet, scale 1:250,000.

Reference (Deposit): Dickinson, K.A., and Campbell, J.A., 1982, The potential for uranium deposits in the Tertiary Kootznahoo Formation of the southern part of the Admiralty trough, southeastern Alaska: U.S. Geological Survey Open-File Report 82-983, 18 p.

Reference (Deposit): Grybeck, D.J., Berg, H.C., and Karl, S.M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.

Reference (Deposit): Dickinson, K.A., and Pierson, C.T., 1988, A statistical analysis of chemical and mineralogic data from the Tertiary Kootznahoo Formation in southeastern Alaska, with emphasis on uranium and thorium: U.S. Geological Survey Bulletin 1851, 19 p.

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