Geonics Limited

6 Articles found

Geonics Limited Articles

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  • Geophysical applications to solid waste analysis

    Geophysical applications to solid waste analysis

    Abstract: Case studies of regional landfills show that electromagnetic geophysical methods can accurately and inexpensively define boundaries and thickness of waste. Degradation of putrescible solid waste generates conductive leachate that can be ...

    Peter J. Hutchinson;Laura S. Barta

  • Using Electromagnetic induction to characterize soils - Case Study

    Using Electromagnetic induction to characterize soils - Case Study

    Electrical conductivity measurements have been used for years to determine salinity and moisture in soils. Probes were inserted directly into the soil to determine how well the soil conducted an applied current. This process was slow and ...

    Glenn Davis;Newell R. Kitchen;Kenneth A. Sudduth;Scott T. Drummond

  • Use of Electromagnetic Induction Tools in salinity assessment/appraisals in eastern Colorado

    Use of Electromagnetic Induction Tools in salinity assessment/appraisals in eastern Colorado

    Abstract Electromagnetic induction (EMI) is a relatively low-cost and rapid method for measuring, assessing spatially soil salinity. The two studies were conducted to evaluate data obtained with a single-frequency (EM38 meter) and multi-frequency ...

    Michael L. Petersen

  • Methods used to carry out six roadway investigations of sinkholes

    Methods used to carry out six roadway investigations of sinkholes

    Abstract Karst conditions are a prevalent problem impacting many roads, bridges and highways of the United States. Six case-histories present an overview of investigations made to determine the presence of karst (sinkholes and cavities) and their ...

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  • UXO discrimination using time domain electromagnetic induction

    UXO discrimination using time domain electromagnetic induction

    Introduction An explosive ordnance is a munition that is either launched or fired with the intent of detonation at a specified target. An unexploded ordnance (UXO) is an explosive ordnance that, due to some malfunction, remains undetonated. As a ...

    Leonard R. Pasion;Stephen D. Billings;Douglas W. Oldenburg

  • Approximate calculations of the transient electromagnetic response from buried conductors in conductive half-space note

    Approximate calculations of the transient electromagnetic response from buried conductors in conductive half-space note

    Abstract The transient electromagnetic (TEM) response from a conductive plate buried in a conductive half-space and energized by a large-loop transmitter is investigated in a heuristic manner. The vortex and galvanic components are each calculated ...

    J.D. McNeill;R. N. Edwards;G. M. Levy