1887
Volume 14 Number 2
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

This paper deals with the apparent resistivity as observed on the surface due to a dyke of arbitrary shape. In order to give a closed analytical solution it has been necessary to assume that the dyke is either perfectly conductive or resistive relative to the enclosing medium. Furthermore we have considered an infinite line source instead of a conventional point current source; however a simple integral transform is given to transform the point‐source‐data into the line‐source‐data. So the present study is equally useful where line sources are inconvenient to handle. Besides considering the conventional method of electrical surveying (bipole method) where the source and sink are separated by a finite distance, we have considered a new variation (unipole method) where the source and sink are separated by an infinite distance, and the source is split into two separate sources each of half strength. A series of apparent resistivity curves for both methods are presented for different parameters of the dyke. The usefulness of these curves lies mainly in the fact that they may provide the necessary guide‐lines for semi‐quantitative interpretation of the observed data.

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2006-04-27
2020-04-03
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References

  1. Lögn, Ö, 1954, Mapping nearly vertical discontinuities by earth resistivity. Geophysics, vol. 19, No. 4, pp. 739–760.
    [Google Scholar]
  2. Naidu, P. S., 1965, Telluric field and apparent resistivity over an inclined normal fault. Can. Jour.of Earth Sciences, vol. 2, No. 3, pp. 351–359.
    [Google Scholar]
  3. Naidu, P. S., 1966, Apparent resistivity over a thin dipping dyke, Geoexploration, Vol. 3, No. 3.
    [Google Scholar]
  4. Parasnis, D. S.1965, Theory and practice of electric potential and resistivity prospecting using linear current electrodes. Geoexploration, vol. 3, No. 1, pp. 2–69.
    [Google Scholar]
  5. Roy, A. and Jain, S.1961, A simple integral transform and its application to some problems in geophysical prospecting. Geophysics, vol. 26, No. 2, pp. 229–241.
    [Google Scholar]
  6. Gupta, R. and Bhattacharya, P. K., 1963, Unipole method of electrical profiling. Geophysics, vol. 28, No. 4, pp. 608–616.
    [Google Scholar]
  7. PI Sakovtsev, G., 1958, Experience of geophysical investigation for exploration of sulphide deposits in the urals. Moscow Inst, of Geol. Prosp., V. 32, (In Russian).
    [Google Scholar]
  8. Tarkhov, A. G., 1957, On electrical geophysical exploration methods of a pure anomaly. Bull. Acad. Sci. USSR, Geophys. Ser. (Eng. Trans.) No. 8, pp. 11–22.
    [Google Scholar]
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