Kuskokwim Sischu Mountains geophysics

Project Details

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• Project ID:

  1699

• Nickname/Abbreviation:

  Kuskokwim Sischu Mts GP

• Parent Project:

  Geophysics Program

• Status:

  Complete

• Description:

  Kuskokwim Sischu Mountains airborne magnetic and radiometric survey covers parts of the Ruby, Kantishna River, Mt. McKinley, Medfra, and Ophir quadrangles north of McGrath, Alaska. Magnetic and radiometric data were collected with a helicopter between July 14, 2023, and October 15, 2023, by Geotech Ltd. The survey contains a single block covering 8,008 km2. A total of 25,878 line-kilometers were collected. The magnetometer was installed inside the stinger attached to the helicopter nose. The airborne gamma-ray spectrometer was mounted on the interior floor of the helicopter cabin. The block was flown with a line spacing of 400 m. The mean ground clearance is 192 m with a nominal survey speed of 142 km/hour. This work was supported by the U.S. Geological Survey's Earth MRI program grants G22AC00475, and additional support was provided by the State of Alaska Capital Improvement Project Funds.

• Project Date(s):

  2023 - 2024

• Primary Contact:

  Fusso, Logan A.

• DGGS section:

  Mineral Resources

• Alternate Url:

  Find out more...

• Project Participants:

  Abraham M. Emond, Logan A. Fusso

Publications

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GPR 2024-1

Emond, A.M., Fusso, L.A., and Geotech Ltd., 2024, Kuskokwim airborne magnetic and radiometric survey, Sischu Mountains: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2024-1, 4 p. https://doi.org/10.14509/31094