Ryan Creek

The Ryan 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: Ryan Creek

Commodity

Primary: Gold

Location

State: Alaska
District: Council

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

Comments

Comment (Geology): Geologic Description = Some placer gold mining took place on Ryan Creek before 1907 (Collier and others, 1908). However, only a few small placer pits are present on the creek and probably less than 100 ounces of gold were produced (Mulligan, 1971). Bedrock in the area is Paleozoic marble wioth some intercalated metasedimentary schist as on Daniels Creek, 1.5 miles to the east. Sinkholes are developed in the marble (Mulligan, 1971). Panned concentrates from the creek and overburden above bedrock schist did not contain gold (Mulligan, 1971).

Comment (Reference): Primary Reference = Mulligan, 1971

Comment (Workings): Workings / Exploration = A few small placer pits are present on the creek.

Comment (Geology): Age = Quaternary; any placer deposits here are at low enough elevation, 50 to 100 feet, to have been influenced by Quaternary sea level fluctuations.

Comment (Production): Production Notes = Based on the extent of the placer workings, Mulligan (1971) estimates that less than 100 ounces of gold were produced.

Comment (Deposit): Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Mulligan, J.J., 1971, Sampling gold lode deposits, Bluff, Seward Peninsula, Alaska, with a section on petrography by Walter L. Gnagy: U.S. Bureau of Mines Report of Investigations 7555, 40 p.

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): Cobb, E.H., 1972, Metallic resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 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 Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.

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