Dewey Creek

The Dewey 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: Dewey Creek

Commodity

Primary: Gold
Secondary: Tungsten

Location

State: Alaska
District: Nome

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Magnetite
Ore: Scheelite
Gangue: Garnet

Comments

Comment (Reference): Primary Reference = Brooks, Richardson, and Collier, 1901

Comment (Geology): Geologic Description = Gold was discovered on Dewey Creek by 1900; it was in 3 feet of auriferous gravel on a sandy clay layer overlain by 1 foot of sandy blue clay and 1 foot of muck. The gold is accompanied by considerable scheelite and garnet and some magnetite (Brooks and others, 1901). Some mining apparently took place in 1903 (Collier and others, 1908). Dewey Creek is near the northeast extension of the Anvil fault; this fault juxtaposes massive marble against marble and schist in this area. These rocks may in part correlate with the Casadepaga Schist (Hummel, 1962 [MF 247]; Bundtzen and others, 1994). Locally, the Anvil Creek fault is a mineralized structure (for example, NM234) containing stibnite and possibly gold.

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Alluvial placer Au (Cox and Singer, 1986; model 39a).

Comment (Workings): Workings / Exploration = Some small-scale surface placer workings are probably present.

Comment (Geology): Age = Quaternary.

References

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): Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.

Reference (Deposit): Brooks, A.H., Richardson, G. B., and Collier, A. J., 1901, Reconnaissance in the Cape Nome and Norton Bay regions, Alaska, in 1900: U.S. Geological Survey Special Publication, p. 1-180.

Reference (Deposit): Hummel, C.L., 1962, Preliminary geologic map of the Nome C-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-247, 1 sheet, scale 1:63,360.

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