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    Zonge is now an agent for GEM Systems Magnetometers

    Zonge International is pleased to announce that the company is now a sales agent for GEM Systems magnetometers in the United States. GEM Systems, based in Ontario, Canada is a global leader in the design and manufacture of advanced magnetometers. Their fully-integrated Ground Magnetics survey systems with GPS and optional VLF-EM capability, are known for […]

    How to conduct an AMT geophysics survey using Zonge GDP equipment and software

    Publisher – Zonge, 2016 Download the pdf: Summary A tutorial for acquisition contractors and exploration geologists wanting a thorough description of the equipment and end-to-end process involved in conducting an AMT geophysics survey using the Zonge GDP EM data receiver and Zonge processing and inversion software. This 13-page tutorial outlines the steps in the Audio-frequency […]

    Lightning-Induced Remanent Magnetic Anomalies in Low-Altitude Aeromagnetic Data

    Publisher – JEEG, December 2009, Volume 14, Issue 4, pp. 155–161 Authors – Les P. Beard*, Jeannemarie Norton and Jacob R. Sheehan*, Battelle-Oak Ridge Operations, Oak Ridge, Tennessee Paper! Abstract

    Comparison of Performance of Airborne Magnetic and Transient EM Systems for Ordnance Detection and Mapping

    Publisher – JEEG, September 2008, Volume 13, Issue 3, pp. 291–305 Authors – Les P. Beard*, William E. Doll, T. Jeffrey Gamey, Jacob R. Sheehan* and Jeannemarie Norton, Battelle-Oak Ridge Operations, Oak Ridge, Tennessee; J. Scott Holladay, James L.C. Lee, Geosensors Inc., Toronto, Ontario; Nathan W. Eklund, 3AMEC, Minneapolis, Minnesota Paper! Abstract

    Application of an Artificial Neural Network for Airborne Magnetic Data Discrimination

    Publisher – SAGEEP, 2011. Authors – Jeannie Norton, Battelle, Oak Ridge, Tennessee Jacob Sheehan*, Zonge International, Denver, Colorado Les Beard*, Zonge International, Tucson, Arizona Paper –  [pdf] UXO_SAGEEP_ANNs_for_ordnance_LPB_2011-UXO Abstract Introduction

    Comparison of Survey Results from EM-61 and Beep Mat for UXO in Basaltic Terrain

    Publisher – SAGEEP, 2007. Authors – Les P. Beard*, Jacob Sheehan*, William E. Doll, Battelle-Oak Ridge, Oak Ridge, Tennessee, U.S.A.; Pierre Gaucher, Regis Desbiens, Instrumentation GDD, Quebec City; Wayne Mandell, U.S. Army Environmental Center, Aberdeen, Maryland Paper –  [pdf]  UXO_SAGEEP_BeepMat_LPB_2007 Abstract

    Rapid Screening of Large-area Magnetic Data for Unexploded Ordnance

    Publisher – SAGEEP, 2003. Authors – L.P. Beard*, D.A. Wolf, T.J. Gamey, W.E. Doll, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.; B. Spurgeon, Geosoft Europe Ltd., Wallington, Oxfordshire, UK Paper –  [pdf]  UXO_SAGEEP_RapidScreening_for_uxo_LPB_2003 Abstract

    Comparison of Airborne Magnetic and Time-domain Electromagnetic Data from a Bombing Target

    Publisher –  Society of Exploration Geophysicists (SEG), 2003. Authors – W. E. Doll, L. P. Beard*, T. J. Gamey, and D. T. Bell, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.; J.S. Holladay and J. L.C. Lee, Geosensors Inc, Toronto, Ontario, Canada Paper – [pdf] UXO_SEG_Comparison_of_AEM_and AirMag_for_UXO_LPB_2003 Summary

    Detecting Structural Components and Seepage Zones at Eagle Mountain Dam Using Geophysics

    Publisher – Zonge, 2010. Presented at ASDSO 2010, Seattle, Washington Authors – Phil Sirles, Justin Rittgers, Zonge International, Denver, Colorado; Louis Verreault, Tarrant County Regional Water District, Ft. Worth, Texas; Mark Thomas, Hugh Kelly, PB America, Baltimore, Maryland Slide presentation – [pdf] Sirles_ASDSO_2010_EagleMtDam&Spillway

    Airborne Geophysics and Infrastructure Planning—A Case Study

    Publisher – Society of Exploration Geophysicists, Journal of Environmental and Engineering Geophysics, June 2000, Volume 5, Issue 2, pp. 1-10 Authors – Les P. Beard* and Ole Lutro, Geological Survey of Norway, N-7491 Trondheim, Norway Article – [pdf] INFR_JEEG_AirborneGeop_for_Infrastructure_LPB_2000 Abstract