Transient Electromagnetic Fields for a Polarized Conductive Sheet

James R. Wait; I. R. Qureshi

doi:10.1071/EG989487

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

Transient Electromagnetic Fields for a Polarized Conductive Sheet
Authors James R. Wait^a and I. R. Qureshi^a
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^a 2210 East Waverly Tucson, AZ, 85719, USA
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 20, Issue 4, Sep 1989, p. 487 - 489
DOI: https://doi.org/10.1071/EG989487
- Received: 19 Sep 1989
- Published online: 01 Sep 1989

Abstract

We formulate the problem of a transient magnetic dipole located over a thin conductive sheet which may exhibit frequency dispersion or IP. (induced polarization). A first order analysis is carried through for the case when the source current is a step function. It is shown that the I.P. slow tail can be of opposite polarity to the principal electromagnetic response.

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1989-09-01

2026-01-19

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References

Grant, F. S., and West, G. F. (1965). ‘Interpretation Theory in Applied Geophysics’, (McGraw Hill)
Maxwell, J. C. (1891). ‘A Treatise on Electricity and Magnetism’ (Clarendon Press)
Smith, R. S., and West, G. F. (1988). An explanation of abnormal TEM responses – coincident negatives, and the loop effect’. Exploration Geophysics, 19, 435-436.
Wait, J. R. (1951). ‘The magnetic dipole. over the horizontally stratified earth’. Can. Jour. Phys.29, 577-592.
Wait, J. R. (1956). ‘Shielding of a transient magnetic field by a conductive sheet’. Can. Jour. Phys., 34, 890-893.

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Article Type: Research Article

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Transient Electromagnetic Fields for a Polarized Conductive Sheet

Abstract

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