Electromagnetic Methods in Applied Geophysics, Volume 1

Presenting the mathematical and physical foundations of all EM methods, chapters include: numerical and analogue modelling, electrical properties and resistivity characteristics of geologic targets, basic principles of instrument design and detection of repetitive EM signals, and achieving the elusive goal of automatic interpretation of EM data.

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This first of two volumes presents mathematical and physical foundations common to all EM methods and has chapters on numerical and analog modeling. The chapters on electrical properties of rocks and resistivity characteristics of geologic targets help readers envisage different kinds of ground structures that may be addressed and the effect of various factors on observed conductivities of rocks. Basic principles of modern instrument design are discussed in the chapter on detection of repetitive EM signals. The last chapter discusses the principles of EM inversion as a first step toward achieving the elusive goal of automatic interpretation of EM data.