An approximate Model of the Magnetometric Resistivity (MMR) and Magnetic Induced Polarization (MIP) Responses of Dipping Dikes Beneath a Conductive Overburden

R. N. Edwards

doi:10.1071/EG983030

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

An approximate Model of the Magnetometric Resistivity (MMR) and Magnetic Induced Polarization (MIP) Responses of Dipping Dikes Beneath a Conductive Overburden
Authors R. N. Edwards^a
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^a Department of Physics, University of Toronto, , Toronto, , Ontario, , Canada, M5S 1A7
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 14, Issue 2, Jun 1983, p. 30 - 35
DOI: https://doi.org/10.1071/EG983030
- Published online: 01 Jun 1983

Abstract

Much of Australia is covered by a weathered, conductive surface layer. Conductive, dike-like, mineral deposits, embedded in a resistive basement material, exist beneath it and often contact it. A suitable mathematical model of this geology is a set of intersecting half planes. The MMR and MIP anomalies of the model are calculated analytically. A limited set of type curves for the simple model of a single dipping dike beneath a conductive overburden is presented. The curves reveal that the shape of the MMR anomaly is a strong function of dip. A computer program is provided to generate additional curves and to stimulate further research.

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1983-06-01

2026-01-17

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References

Edwards, R. N. (1974), ‘The magnetometric resistivity method and its application to the mapping of a fault’, Can. J. Earth Sci.11, 1136-56.
Edwards, R. N. & Gomez-Trevino, E. (1980), ‘MMR2D - A programme to compute the magnetometric resistivity anomalies of two-dimensional structures’, Unpublished manuscript, Macquarie University.
Edwards, R. N. & Howell, E.C. (1976), ‘A field test of the magneto-metric resistivity method’, Geophysics41, 1170-83.
Edwards, R. N., Lee, H. & Nabighian, M.N. (1978), ‘On the theory of magnetometric resistivity methods’. Geophysics43, 1176-203.
Gomez-Trevino, E. & Edwards, R.N. (1979), ‘Magnetometric resistivity anomalies of two-dimensional structures’, Geophysics44, 947-58.
Siegel, H. O. (1974), ‘The magnetic induced polarization (MIP) method’, Geophysics39, 321-39.

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Article Type: Research Article

Keyword(s): dikes; electrical conductivity; magnetic induced polarization; magnetometric resistivity; overburden

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An approximate Model of the Magnetometric Resistivity (MMR) and Magnetic Induced Polarization (MIP) Responses of Dipping Dikes Beneath a Conductive Overburden

Abstract

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