The Kahiltna River 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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Kahiltna River MRDS details
Site Name
Primary: Kahiltna River
Commodity
Primary: Gold
Secondary: Uranium
Secondary: Titanium
Secondary: Zirconium
Secondary: Tin
Secondary: Thorium
Secondary: Platinum
Secondary: REE
Secondary: Tungsten
Location
State: Alaska
District: Yentna
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: Cassiterite
Ore: Monazite
Ore: Platinum
Ore: Rutile
Ore: Scheelite
Gangue: Tourmaline
Gangue: Sphene
Gangue: Quartz
Gangue: Magnetite
Gangue: Ilmenite
Gangue: Hematite
Gangue: Garnet
Gangue: Zircon
Comments
Comment (Geology): Age = Quaternary
Comment (Deposit): Model Name = Placer gold (Cox and Singer, 1986; model 39a)
Comment (Deposit): Other Comments = This placer occurrence is the southern most mine along the Kahiltna River; two other localities, know as Kahiltna River, are upstream in the Tyonek Quadrangle. Placer occurrences extend to the north along the Kahiltna River in the Talkeetna Quadrangle.
Comment (Exploration): Status = Probably inactive
Comment (Commodity): Ore Material = uranothorianite
Comment (Commodity): Ore Material = Gold (native)
Comment (Reference): Primary Reference = MacKevett and Holloway, 1977
Comment (Workings): Workings / Exploration = Probably some minor production prior to 1919. Drilling for possible dredging was done in the early 1900's. Limited prospecting may have been done more recently.
Comment (Geology): Geologic Description = Quaternary gravels reconcentrated from Tertiary continental rock, glacial deposits or older bedrock to the north in the Talkeetna quadrangle. Samples are reported to contain up to 0.08% uranium and 0.03% thorium (Cobb, 1979, OFR 80-86, p. 17). Probably some minor production prior to 1919. Drilling for possible dredging was done in the early 1900's. Limited prospecting may have been done more recently.
References
Reference (Deposit): Mertie, J.B., Jr., 1919, Platinum-bearing gold placers of the Kahiltna Valley: U.S. Geological Survey Bulletin 692-D, p. 233-264.
Reference (Deposit): Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska: Alaska Territorial Department of Mines Pamphlet 1, 46 p.
Reference (Deposit): Smith, P.S., 1930, Mineral industry of Alaska in 1928: U.S. Geological Survey Bulletin 813, p. 1-72.
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.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1:250,000 scale.
Reference (Deposit): U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims: U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).
Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-86, 36 p.
Reference (Deposit): Bates, R.G. and Wedow, H. Jr., 1953, Preliminary summary review of thorium-bearing mineral occurrences in Alaska: U.S. Geological Survey Circular 202, 13 p.
Reference (Deposit): Overstreet, W.C., 1967, The geologic occurrence of monazite: U.S. Geological Survey Professional Paper 530, 327 p.
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