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  3. Alaska Resource Data File (ARDF)

Unnamed (near Barnard Glacier)

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu; Fe
Ore minerals pyrite

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale A-2
Latitude 61.1384
Longitude -141.6054
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the south wall of Barnard Glacier near its confluence with an unnamed south tributary. It is at an elevation of about 3,800 feet, 5,400 feet west of peak 5730. The site is near the northwest corner of section 35, T. 8 S., R. 21 E. of the Copper River Meridian. This is locality 26 of MacKevett (1976); the location is accurate to within about 1,000 feet.

Geologic setting

Geologic description

This occurrence consists of a pyrite-bearing dike; a sample contained 15 percent iron and 300 parts per million copper (MacKevett, 1976). The dike intrudes Paleozoic metasedimentary rocks (MacKevett, 1978).
Geologic map unit (-141.607400641728, 61.1379886813701)
Mineral deposit model Disseminated sulfide minerals
Age of mineralization The mineralized dike intrudes Paleozoic metamorphic rocks.

Production and reserves

Workings or exploration Limited surface sampling.
Indication of production None

Additional comments

The locality is in the Wrangell-Saint Elias National Park and Preserve.

References

References

MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, 2 sheets, scale 1:250,000.
MacKevett, E.M., Jr., 1978, Geologic map of the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-1032, 1 sheet, scale l:250,000.
Reporters Travis L. Hudson (Applied Geology, Inc.)
Last report date 1/12/2003