Tok geophysics

Project Details

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• Project ID:

  1367

• Nickname/Abbreviation:

  Tok GP

• Parent Project:

  Geophysics Program

• Status:

  Complete

• Description:

  Airborne geophysical survey of the Tok and Chistochina mining districts. The area is area centered roughly 35 miles west-southwest of Tok in the Mt. Hayes, Tanacross, Gulkana, and Nabesna quadrangles. The Tok electromagnetic and magnetic airborne geophysical survey data were acquired with a DIGHEMv Electromagnetic (EM) system and a CGG D1344 cesium magnetometer with a Scintrex CS3 cesium sensor. The EM and magnetic sensors were flown at a height of 30 meters (m). In addition the survey recorded data from radar and laser altimeters, a GPS navigation system, 50/60 Hz monitors and a video camera. Flights were performed with an AS-350-B3 Squirrel helicopter at a mean terrain clearance of 60 m along NE-SW (12 degrees) survey flight lines with a spacing of 400 m. Tie lines were flown perpendicular to the flight lines at intervals of approximately 4,800 m. Airborne geophysical data for the area were acquired and processed by CGG in 2014 and 2015.

• Project Date(s):

  2014 - 2015

• Primary Contact:

  Emond, Abraham M.

• DGGS section:

  Mineral Resources

• Alternate Url:

  Find out more...

• Project Participants:

  Gina R. C. Graham, Gina Graham, Abraham M. Emond

Publications

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GPR 2015-2

Emond, A.M., CGG, Burns, L.E., Graham, G.R.C., and CGG Land (US) Inc., 2015, Tok electromagnetic and magnetic airborne geophysical survey data compilation: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2015-2, 13 p. https://doi.org/10.14509/29347