Unnamed (on Alder Creek)

The Unnamed (on Alder Creek) is a gold 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 (on Alder Creek)

Commodity

Primary: Gold

Location

State: Alaska
District: Port Clarence

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: Low-sulfide Au-quartz vein

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Clay and sericite (?) may be source of talcose material noted by Collier and others (1908).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Exploration): Status = Probably inactive

Comment (Workings): Workings / Exploration = Some surface workings and shallow exporation to depth of 60 feet has been noted.

Comment (Reference): Primary Reference = Collier and others, 1908

Comment (Reserve-Resource): Reserves = Not defined

Comment (Geology): Geologic Description = This is a lode prospect initially exposed on lower Alder Creek by placer operations and subsequently explored to a depth of 60 feet from exposures on the south side of the creek. The prospect is an altered fault (?) zone, in one place 16 feet wide, along a contact between schistose carbonate rocks in the hanging wall and metapelitic rocks in the footwall (Collier and others, 1908, p. 279-280). The altered zone is a talcose material with quartz stringers and blebs, pyrite, and fine gold. A sample assayed 0.06 opt gold and a trace of silver (Collier and others, 1908).??

Comment (Commodity): Gangue = talcose altered material

Comment (Deposit): Model Name = Altered fault (?) contact with quartz stringers, pyrite, and fine gold. Possibly low sulfide Au-quartz vein model (Cox and Singer, 1986, model 36a).

Comment (Geology): Age = Not known; apparently post-dates regional deformation and metamorphism which is Late Jurassic/Early Cretaceous in age.

References

Reference (Deposit): Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.

Reference (Deposit): Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.

Reference (Deposit): Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

Reference (Deposit): Sainsbury, C.L., Kachadoorian, Reuban, Hudson, Travis, Smith, T.E., Richards, T.R., and Todd, W.E., 1969, Reconnaissance geologic maps and sample data, Teller A-1, A-2, A-3, B-1, B-2, B-3, C-1, and Bendeleben A-6, B-6, C-6, D-5, and D-6 quadrangles. Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 377, 49 p., 12 sheets, scale 1:63,360.

Reference (Deposit): Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.

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