Fortymile geophysics

Project Details

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• Project ID:

  46

• Nickname/Abbreviation:

  Fortymile GP

• Parent Project:

  Geophysics Program

• Status:

  Complete

• Description:

  The Fortymile electromagnetic and magnetic airborne geophysical survey data were acquired with a DIGHEM-V Electromagnetic (EM) system and a cesium magnetometer. 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-B2 Squirrel helicopter at a mean terrain clearance of 60 m along N-S 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

• Project Date(s):

  1998 - 1999

• Primary Contact:

  Emond, Abraham M.

• DGGS section:

  Mineral Resources

• Alternate Url:

  Find out more...

• Project Participants:

  Laurel E. Burns, Abraham M. Emond

Publications

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GPR 2015-4

Burns, L.E., Geoterrex-Dighem, Stevens Exploration Management Corp., Emond, A.M., and Graham, G.R.C., 2015, Fortymile mining district electromagnetic and magnetic airborne geophysical survey data compilation: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2015-4, 12 p. https://doi.org/10.14509/29411

RI 99-1

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Report of Investigation 99-1, 2 sheets, scale 1:63,360. https://doi.org/10.14509/2591

RI 99-3

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, 7200 Hz coplanar resistivity of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Report of Investigation 99-3, 2 sheets, scale 1:63,360. https://doi.org/10.14509/2593

PDF 99-8

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, 1 CD-ROM containing gridded files and section line of 1998 geophysical survey data for part of the Fortymile and Livengood mining districts, Alaska, southern Eagle, northern Tanacross, and central Livengood quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-8, 1 DVD. https://doi.org/10.14509/1885

PDF 99-1

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Flight lines of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-1, 2 sheets, scale 1:63,360. https://doi.org/10.14509/1878

PDF 99-2

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-2, 2 sheets, scale 1:63,360. https://doi.org/10.14509/1879

PDF 99-3

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (clear diazo film version): Alaska Division of Geological & Geophysical Surveys Public Data File 99-3, 2 sheets, scale 1:63,360. https://doi.org/10.14509/1880

PDF 99-4

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, 900 Hz coplanar resistivity of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-4, 2 sheets, scale 1:63,360. https://doi.org/10.14509/1881

PDF 99-5

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, 7200 Hz coplanar resistivity of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-5, 2 sheets, scale 1:63,360. https://doi.org/10.14509/1882

PDF 99-6

Burns, L.E., and Liss, S.A., 1999, Portfolio of aeromagnetic and resistivity maps of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-6, 20 p., 1 sheet. https://doi.org/10.14509/1883

PDF 99-7

Pritchard, R.A., and Geoterrex-Dighem, 1999, Project report of the 1998 geophysical survey data of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-7, 162 p., 2 sheets, scale 1:63,360. https://doi.org/10.14509/1884

PDF 99-9

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, CD-ROM containing profile and gridded data and section lines of the 1998 geophysical survey data for part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Public Data File 99-9, 1 DVD. https://doi.org/10.14509/1886

PDF 99-10A

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (western part of Eagle B-3): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10A, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1887

PDF 99-10B

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (northwestern Eagle A-3, part of A-4): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10B, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1888

PDF 99-10C

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (eastern Eagle A-3): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10C, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1889

PDF 99-10D

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (Eagle A-2): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10D, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1890

PDF 99-10E

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (Eagle A-1): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10E, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1891

PDF 99-10F

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (northern Tanacross D-2): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10F, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1892

PDF 99-10G

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, Total field magnetics and detailed electromagnetic anomalies of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles (northern Tanacross D-1): Alaska Division of Geological & Geophysical Surveys Public Data File 99-10G, 1 sheet, scale 1:31,680. https://doi.org/10.14509/1893

MP 35

Burns, L.E., 1999, Color scheme variations of the total field magnetics for part of the Fortymile mining district: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 35, 1 sheet, scale 1:250,000. https://doi.org/10.14509/744

MP 36

Burns, L.E., 1999, Different coplanar resistivities and color schemes for part of the Fortymile mining district: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 36, 1 sheet, scale 1:250,000. https://doi.org/10.14509/745

RI 99-2

DGGS Staff, Geoterrex-Dighem, and Stevens Exploration Management Corp., 1999, 900 Hz coplanar resistivity of part of the Fortymile mining district, Alaska, southern Eagle and northern Tanacross quadrangles: Alaska Division of Geological & Geophysical Surveys Report of Investigation 99-2, 2 sheets, scale 1:63,360. https://doi.org/10.14509/2592