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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Ryan Creek MRDS details
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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