The Chalet Mountain is a tungsten 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
Chalet Mountain MRDS details
Site Name
Primary: Chalet Mountain
Commodity
Primary: Tungsten
Secondary: Copper
Location
State: Alaska
District: Kodiak
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: W skarn
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Pyrite
Ore: Scheelite
Comments
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = At the time of Seitz's visit in 1963 the showings had been exposed by open cuts and pits. Six channel samples ranged in grade from 0.06 to 1.75 percent tungsten oxide.
Comment (Deposit): Model Name = W skarn, W vein (Cox and Singer, 1986; models 14a, 15a)
Comment (Geology): Age = Cretaceous or younger
Comment (Deposit): Model Number = 14a, 15a
Comment (Geology): Geologic Description = Scheelite occurs as minute disseminated grains and veinlets in siliceous zones in Cretaceous graywacke, as thin coatings on the edges of quartz veins, and in fractures. There are abundant quartz-scheelite veins in the vicinity of the disseminated scheelite. The disseminated scheelite is generally confined to pod-shaped bodies up to several feet thick and only a few feet long. One mineralized zone, however, is approximately 100 feet in length. Seitz (1963) located 15 separate scheelite showings trending roughly N. 45 E. generally parallel to bedding. These occur within an area measuring approximately 300 by 1600 feet. Rose and Richter (1967) cite a personal communication from Jasper, who found 4 additional showings, thus extending the mineralization an additional 2000 feet to the southwest. Four channel samples of disseminated scheelite collected by Seitz assayed 0.06 to 0.56 percent tungsten oxide. Two samples collected by Jasper (cited by Rose and Richter, 1967) assayed 1.75 and 0.28 percent tungsten oxide over 35 and 42 inches. The origin of the disseminated scheelite is unknown although it has been suggested (Seitz, 1963) that it and the scheelite-quartz veins are somehow related to nearby intrusive bodies or to other unexposed plutons. Kodiak Exploration sent a sample from this area or from their Cornelius Creek property (KD026) to Wah Chang Corporation for analysis and examination. They identified the so-called siliceous material containing the disseminated scheelite as tactite or skarn (Jasper, 1955).
Comment (Reference): Primary Reference = Rose and Richter, 1967
References
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Kodiak quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-460, 1 map sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-860, 49 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): Seitz, J.F., 1963, Tungsten prospect on Kodiak Island, Alaska, in Contributions to Economic Geology of Alaska: U.S. Geological Survey Bulletin 1155, p. 72-77.
Reference (Deposit): Rose, A.W., and Richter, D.H., 1967, Geology and stream sediment geochemistry of Anton Larsen Bay and vicinity, Kodiak Island, Alaska: State of Alaska Department of Natural Resources, Division of Mines and Minerals, Geologic Report 31, 10 p., 1 map sheet, scale 1:63,360.
Reference (Deposit): Rose, A.W., and Richter, D.H., 1967, Geology and stream sediment geochemistry of Anton Larsen Bay and vicinity, Kodiak Island, Alaska: Alaska Division of Mines and Minerals Geologic Report 31, 10 p., 1 sheet, scale 1:63,360.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
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