The Cone Mountain is a uranium 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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Cone Mountain MRDS details
Site Name
Primary: Cone Mountain
Commodity
Primary: Uranium
Secondary: Zinc
Secondary: Lead
Location
State: Alaska
District: Petersburg
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Porphyry Cu
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Not available
Comments
Comment (Geology): Age = Miocene
Comment (Deposit): Model Name = Felsic plutonic uranium?
Comment (Geology): Geologic Description = The country rocks in the general area of the Cone Mountain prospect are a Miocene(?) alkali feldspar granite stock and associated quartz-porphyritic rhyolite dikes (Koch, 1996, 1997). The prospect is on the western margin of the stock, which intrudes Eocene granodiorite and quartz monzonite plutons and Mesozoic or Paleozoic pelitic schist and paragneiss. A group of 145 claims was staked in 1976, presumably for uranium-bearing and related minerals (Elliott and Koch, 1981, loc. 4; Koch and others, 1981; U. S. Geological Survey, 1979). Geochemical surveys [(Koch and Elliott, 1981 (OFR 81-728C-K)] show high values of Ag, Be, Mo, Nb, Pb, Sn, Y and REE, and Zn in rock, stream-sediment and heavy-mineral concentrate samples from the immediate area of the stock. Differentiation enrichment of these elements in such a highly-evolved silicic magma may account for most of the values reported, but a few Pb and Zn values are sufficiently high to suggest local sulfide deposition.
Comment (Reference): Primary Reference = Elliott and Koch, 1981
Comment (Workings): Workings / Exploration = 145 claims staked in 1976. Claims were active for 2 or 3 years. Exploration by private interests included some diamond drilling. ? Geochemical surveys by the U.S. Geological Survey in the late 1970's [Koch and Elliott, 1981 (OFR 81-728C-K)] show high values of Ag, Be, Mo, Nb, Pb, Sn, Y and REE, and Zn in rock, stream-sediment and heavy-mineral concentrate samples from the immediate area of the stock.
Comment (Commodity): Ore Material = Unspecified radioactive minerals
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Koch, R.D., 1997, Metalliferous mineral resource potential in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 97-271, 57 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Koch, R.D., Elliott, R.L., and Rossiter, Richard, 1981, Total gamma ray intensities at ground stations in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-840, 2 sheets, scale 1:250,000.
Reference (Deposit): U.S. Geological Survey, 1979, Aeroradioactivity map of Cone Mountain, Alaska: U.S. Geological Survey Open-File Report 79-830, 1 sheet, scale 1:63,360.
Reference (Deposit): Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of yttrium in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-K, 2 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of copper in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-D, 4 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of beryllium in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-I, 2 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of gold and silver in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-C, 2 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of lead in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-E, 4 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of tin in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-H, 2 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of niobium in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-J, 2 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of zinc in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-F, 4 sheets, scale l:250,000.
Reference (Deposit): Koch, R.D., and Elliott, R.L., 1981, Maps showing distribution and abundance of molybdenum in geochemical samples from Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-G, 2 sheets, scale l:250,000.
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