Depth Estimation with PEM — A Cautionary Note

T.J. Lee

doi:10.1071/EG978168

ISSN: 0812-3985
E-ISSN: 1834-7533

Depth Estimation with PEM — A Cautionary Note
Authors T.J. Lee^a
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^a L.A. Richardson & Assoc, , P.O. Box217, Gordon, , N.S.W., 2072
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 9, Issue 4, Dec 1978, p. 168 - 169
DOI: https://doi.org/10.1071/EG978168
- Published online: 01 Dec 1978

Abstract

The method advocated by Crone (1977) for determining the position of a "current axis" for a conducting ore body will give a positive result even if there is no ore body.

The depth, ℓ, to this axis in a uniform ground of conductivity σ and permeability p0 is given by:

In this expression t is time and consequently the result can be used to determine the conductivity profile of a nearly uniform ground.

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1978-12-01

2026-01-20

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References

ABRAMOWITZ M. STEGUN L 1965 Handbook of Mathematical Functions, Dover, New York, pp.1046.
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Article Type: Research Article

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Depth Estimation with PEM — A Cautionary Note

Abstract

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