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Volume 28 Number 4
  • E-ISSN: 1365-2478

Abstract

A

The inductive response of a conducting horizontal cylinder embedded in a uniform earth is studied using numerical results obtained for an analytical solution for the problem of a conducting cylinder buried in a homogeneous earth for the case of a uniform inducing field. A check of the validity of the numerical results is made by a comparison with analogue model measurements for a number of cases. Numerical results for a range of cylinder radii (a = 1–10 km), depths of burial (= 0–4 km), conductivity contrasts (σ= 10−2‐10 Sm−1), and source frequencies (= 10−1‐10−4 Hz) of interest in the interpretation of magnetotelluric field measurements are presented. The results indicate that for a uniform inducing field the conductivity and depth of burial of a horizontal cylindrical inhomogeneity are best determined through a measurement of the amplitudes , and and the phases φ and Ψ.

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2006-04-27
2024-04-27

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  • Article Type: Research Article

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