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Proceedings Paper

Prediction and validation of soil electromagnetic characteristics for application in landmine detection
Author(s): T. John Katsube; Rod A. Klassen; Yogadhish Das; Richard Ernst; Tom Calvert; Guy Cross; J. Hunter; Mel Best; R. DiLabio; Shauna Connell
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Paper Abstract

Factors controlling the distribution and intensity of soil magnetic susceptibility (MS) and electrical conductivity (EC) were investigated. The purpose was to determine the factors to be considered in predicting MS and EC characteristics of soils in landmine-affected areas and in developing effective landmine detection systems and strategies. Results indicate that knowledge of bedrock geology, soil weathering and transportation (wind and water) history is essential to predict soil MS and EC characteristics. These factors determine the distribution, concentration and mineral type (e.g. ferromagnetic and clay minerals) in soil. For example, fluctuating water tables in tropical climates could produce soils rich in ferromagnetic minerals at the surface, even though their source (bedrock) may have low iron content. Also, subsequent weathering may change these minerals to high or low MS values. Although high clay concentrations homogeneously distributed may not produce high soil EC values, a low clay content concentrated in a single layer may produce extremely high EC values. These suggest that bedrock geology, agricultural soil, air photo and airborne geophysical survey maps can be used for predicting soils MS and EC characteristics of landmine-affected areas. Laboratory and surficial geophysical surveys are techniques for use in validation.

Paper Details

Date Published: 11 September 2003
PDF: 12 pages
Proc. SPIE 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII, (11 September 2003); doi: 10.1117/12.486983
Show Author Affiliations
T. John Katsube, Geological Survey of Canada (Canada)
Rod A. Klassen, Geological Survey of Canada (Canada)
Yogadhish Das, Defence Research and Development Canada (Canada)
Richard Ernst, Geological Survey of Canada (Canada)
Tom Calvert, Geological Survey of Canada (Canada)
Guy Cross, Terrascan Geophysics (Canada)
J. Hunter, Geological Survey of Canada (Canada)
Mel Best, Bemex Consulting International (Canada)
R. DiLabio, Geological Survey of Canada (Canada)
Shauna Connell, Geological Survey of Canada (Canada)


Published in SPIE Proceedings Vol. 5089:
Detection and Remediation Technologies for Mines and Minelike Targets VIII
Russell S. Harmon; John H. Holloway; J. T. Broach, Editor(s)

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