The Eklutna Tunnel is a mercury 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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Eklutna Tunnel MRDS details
Site Name
Primary: Eklutna Tunnel
Commodity
Primary: Mercury
Location
State: Alaska
District: Anchorage
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Almaden Hg
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Mesozoic
Analytical Data
Not available
Materials
Ore: Cinnabar
Comments
Comment (Workings): Workings / Exploration = Underground mapping and sampling.
Comment (Reference): Primary Reference = Rose, 1966
Comment (Deposit): Other Comments = Rose (1966) reports several other cinnabar occurrences in the Eklutna River drainage and farther southwest near Turnagain Arm, but there is no record of the exact location or extent of any of the occurrences.
Comment (Geology): Geologic Description = Athern and Judd (1956) report a very small kidney of cinnabar reported in a 10 ft length of fault gouge about 300 ft from the north end of Eklutna tunnel. The bedrock in the area consists of graywacke and minor interbedded argillite of the Mesozoic McHugh Complex and nearby ultramafic rocks of Middle to Early Jurassic age.
Comment (Deposit): Model Name = Almaden Hg ? (Cox and Singer, 1986; model 27b ?)
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Host rock is Mesozoic.
References
Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Rose, A.W., 1966, Geology and chromite-bearing ultramafic rocks near Eklutna, Anchorage quadrangle, Alaska: Alaska Division of Mines and Minerals Geologic Report 18, 25 p., 1 sheet, scale 1:42,000.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.
Reference (Deposit): Clark, S.H.B., and Bartsch, S.R., 1971, Reconnaissance geologic map and geochemical analyses of stream sediment and rock samples of the Anchorage B-6 quadrangle, Alaska: U.S. Geological Survey Open-File Report 475, 63 p., 2 sheets, scale 1:36,360.
Reference (Deposit): Winkler, G.R., 1992, Geologic map and summary geochronology of the Anchorage (1 degree x 3 degree) quadrangle, southern Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-2283, 1:250,000.
Reference (Deposit): Athern, M.J., and Judd, W.R., 1956, Final engineering geology report on the Eklutna project: unpublished report of the U.S. Bureau of Reclamation, 109 p.
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
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