Chalet Mountain

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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

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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