The Chalet Mountain is a copper and 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
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Chalet Mountain MRDS details
Site Name
Primary: Chalet Mountain
Commodity
Primary: Copper
Primary: Tungsten
Location
State: Alaska
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
Discovery Year: 1955
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: W skarn
Orebody
Form: SEE DEPOSIT DESCRIPTION COMMENTS
Structure
Not available
Alterations
Not available
Rocks
Name: Siltstone
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Siltstone
Role: Host
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: 2 FT LONG CHANNEL SAMPLES FROM 2 PITS CONTAINED FROM .05% TO .56% WO3.
Materials
Ore: Chalcopyrite
Ore: Pyrite
Ore: Scheelite
Comments
Comment (Workings): 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): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (Deposit): 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 (Deposit): 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
Comment (Location): THIS PROSPECT IS LOCATED SOUTH OF THE RED CLOUD RIVER, 2 3/4 MILES SOUTHWEST OF PYRAMID MOUNTAIN IN SEC. 35. T. 27 S., R. 21 W., OF THE SEWARD MERIDIAN (BERG AND COBB, 1967, FIGURE 15, LOCALITY 8; ROSE AND RICHTER, 1967, FIGURE 1, LOCALITY 1; COBB, 1972, MF 460, LOCALITY 13; MACKEVETT AND HOLLOWAY, 1977, LOCALITY 13). SITE LOCATION IS ACCURATE TO WITHIN SEVERAL HUNDRED FEET.
Comment (Exploration): Status = Inactive
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): 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): 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 (Other Database): BAG-MF-460-13
Reference (Deposit): COBB, E.H., 1979, SUMMARY OF REFERENCES TO MINERAL OCCURRENCES IN THE AFOGNAK, KARLUK, KODIAK, AND TRINITY ISLANDS QUADRANGLES, ALASKA: U.S. GEOLOGICAL SURVEY OPEN FILE REPORT 79-860, 49 P.
Reference (Deposit): ROSE, 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): COBB, E.H., 1972, METALLIC MINERAL RESOURCE MAP OF KODIAK QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY MAP MF 460, 1 MAP SHEET, SCALE 1:250,000.
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): BERG, H., AND COBB, E.H., 1967, METALLIFEROUS LODE DEPOSITS OF ALASKA: U.S. GEOLOGICAL SURVEY BULLETIN 1246, 254 P.
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