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: REE
Secondary: Zirconium
Secondary: Platinum
Secondary: Tin
Secondary: Titanium
Secondary: Tungsten
Secondary: Uranium
Secondary: Thorium
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: Cassiterite
Ore: Gold
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 (Exploration): Status = Inactive
Comment (Geology): Age = Quaternary
Comment (Workings): Workings / Exploration = Drilling for possible dredging was done in the early 1900's. Limited prospecting may have been done more recently.
Comment (Deposit): Model Name = Placer gold (Cox and Singer, 1986; model 39a)
Comment (Reference): Primary Reference = Cobb, 1979 (OFR 80-86)
Comment (Deposit): Other Comments = See other Kahiltna River occurrences in the Tyonek Quadrangle (ARDF numbers TY028 and TY029) and to the north in the Talkeetna Quadrangle.
Comment (Commodity): Ore Material = uranothorianite
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 small 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): Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska: Alaska Territorial Department of Mines Pamphlet 1, 46 p.
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): 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): Smith, P.S., 1930, Mineral industry of Alaska in 1928: U.S. Geological Survey Bulletin 813, p. 1-72.
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): Carnes, D.R., 1976, Active Alaskan placer operations, 1975: U.S. Bureau of Mines Open-File Report 98-76, 90 p., 40 maps.
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): Overstreet, W.C., 1967, The geologic occurrence of monazite: U.S. Geological Survey Professional Paper 530, 327 p.
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.
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