Circle geophysics

Project Details

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• Project ID:

  59

• Nickname/Abbreviation:

  Circle GP

• Parent Project:

  Geophysics Program

• Status:

  Complete

• Description:

  This geophysical survey is located in north-central Alaska in the Circle mining district, about 120 kilometers northeast of Fairbanks, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEM system from August to September 1993. A total of 2516.7 line kilometers were collected covering 921.5 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ("bird") on a 30 m long line.

• Project Date(s):

  1993 - 2004

• 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 2019-3

Burns, L.E., Barefoot, J.D., Woods, Rebecca-Ellen, WGM Mining and Geological Consultants, Inc., and Dighem Surveys and Processing, 2019, Circle electromagnetic and magnetic airborne geophysical survey data compilation: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2019-3, 4 p. https://doi.org/10.14509/30167

GPR 2004-5

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5, 1 DVD. https://doi.org/10.14509/3339

GPR 2004-5-1A

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, Total magnetic field of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-1A, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3330

GPR 2004-5-1B

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, Total magnetic field of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-1B, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3331

GPR 2004-5-1C

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, Color shadow total magnetic field of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-1C, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3332

GPR 2004-5-2A

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, 7200 Hz coplanar apparent resistivity of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-2A, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3333

GPR 2004-5-2B

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, 7200 Hz coplanar apparent resistivity of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-2B, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3334

GPR 2004-5-3A

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, 900 Hz coplanar apparent resistivity of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-3A, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3335

GPR 2004-5-3B

Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., 2004, 900 Hz coplanar apparent resistivity of the Circle mining district, interior Alaska, in Burns, L.E., Fugro Airborne Surveys Corp., and Stevens Exploration Management Corp., Line, gridded, and vector data, and selected plot files of the airborne geophysical survey data of the Circle mining district, central Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2004-5-3B, 1 sheet, scale 1:63,360. https://doi.org/10.14509/3336

PDF 94-33

DGGS Staff, WGM, Inc., and Dighem, 1994, Digital gridded data of total field magnetics and electromagnetics for entire survey of Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-33, 1 DVD. https://doi.org/10.14509/1659

PDF 94-11

Alaska Division of Geological & Geophysical Surveys, WGM, Inc., and Dighem, 1994, 900 Hz resistivity contours of Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-11, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1636

PDF 94-12

Alaska Division of Geological & Geophysical Surveys, WGM, Inc., and Dighem, 1994, 7200 Hz resistivity contours of Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-12, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1637

PDF 94-14

Alaska Division of Geological & Geophysical Surveys, WGM, Inc., and Dighem, 1994, Clear mylar version of RI 94-2: Total field magnetics and electromagnetic anomalies of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-14, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1639

PDF 94-36

McConnell, D.L., 1994, Final summary of 1993 airborne geophysical surveys of the Nome, Circle, Nyac, and Valdez Creek areas: Alaska Division of Geological & Geophysical Surveys Public Data File 94-36, 327 p., 4 sheets, scale 1:63,360. https://doi.org/10.14509/1662

RI 94-2

DGGS Staff, WGM, Inc., and Dighem, 1994, Total field magnetics and electromagnetic anomalies of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Report of Investigation 94-2, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2488

PDF 94-15

DGGS Staff, Dighem, and WGM, Inc., 1994, CD-ROM digital archive files of 1993 survey data for Nome, Circle, Nyac, and Valdez Creek mining districts: Alaska Division of Geological & Geophysical Surveys Public Data File 94-15, 22 p. https://doi.org/10.14509/1640

RI 94-14

DGGS Staff, WGM, Inc., and Dighem, 1994, Total field magnetics of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Report of Investigation 94-14, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2500

RI 94-15

DGGS Staff, WGM, Inc., and Dighem, 1994, Color shadow total field magnetics of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Report of Investigation 94-15, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2501

RI 94-16

DGGS Staff, WGM, Inc., and Dighem, 1994, 7200 Hz coplanar resistivity of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Report of Investigation 94-16, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2502

RI 94-17

DGGS Staff, WGM, Inc., and Dighem, 1994, 900 Hz coplanar resistivity of the Circle mining district: Alaska Division of Geological & Geophysical Surveys Report of Investigation 94-17, 1 sheet, scale 1:63,360. https://doi.org/10.14509/2503

PDF 94-10

Alaska Division of Geological & Geophysical Surveys, WGM, Inc., and Dighem, 1994, Flight lines of Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-10, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1635

PDF 94-13

Alaska Division of Geological & Geophysical Surveys, and WGM, Inc., 1994, Filtered total field VLF contours of Circle mining district: Alaska Division of Geological & Geophysical Surveys Public Data File 94-13, 1 sheet, scale 1:63,360. https://doi.org/10.14509/1638