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Volume 28 Number 6
  • E-ISSN: 1365-2478

Abstract

A

The computation of the electrical potential created by a source of direct current in a horizontally stratified earth is easy, and it is now a common practice to interpret, by manual or automatic procedures, the maps of apparent resistivity or of mise‐à‐la‐masse surveys.

The study of 3‐D cases requires a computer cost too high for a general use, and the available techniques usually refer only to an anomalous body embedded in a stratified medium. In fact, it often happens that the surface of the ground cannot be regarded as a plane, an assumption which can cause large discrepancies between the observed and the calculated potentials. A first estimate of these discrepancies can be made by assuming that the earth's surface makes a dihedron and the underground consists either of one homogeneous medium or of several media whose plane interfaces pass through the edge of the ground surface dihedron. Although very schematic, this approximate model can provide a useful information on the effect of the relief.

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2006-04-27
2024-04-27

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References

  1. Cecchini, A.1973, Courant continu, équations intégrales. Notes techniques CGG.
  2. Durand, E.1964, Electrostatique Tome 1, les distributions, Masson et Cie, Paris.
  3. Erdelyi, A.1954, Tables of integral transforms, McGraw‐Hill, New York .
    [Google Scholar]
  4. de Géry, J. and Kunetz, G.1956, Potential and apparent resistivity over dipping beds, Geophysics21, 780–793.
    [Google Scholar]
  5. Gray, A., Mathews, G.B. and Mac Robert, T.M.1931, A treatise on Bessel functions, Macmillan, London .
    [Google Scholar]
  6. Ianas, M. and Sava, C.S.1975, A preliminary processing of the Bouguer anomaly in areas of very complicated relief, Geophysical Prospecting23, 93–103.
    [Google Scholar]
  7. Kunetz, G.1946, Influence de la topographie sur le champ tellurique en surface. Notes techniques, CGG.
  8. Kunetz, G. et Rocroi, J.P.1970, Traitement automatique des sondages électriques, Geophysical Prospecting18, 157–198.
    [Google Scholar]
  9. Maillet, R. et Baranov, V.1939, Modification d'un champ uniforme en présence d'un cylindre circulaire ou elliptique. Notes techniques, CGG.
  10. Mufti, I.R.1978, Practical approach to finite‐difference resistivity modeling, Geophysics43, 930–942.
    [Google Scholar]
  11. Mundry, E. and Homilius, J.1972, Resistivity measurements in valleys with elliptic cross‐section, Geophysical Prospecting20, 341–362.
    [Google Scholar]
  12. Rocroi, J.P.1974, Structures cylindriques en courant continu, sources ponctuelles, Notes techniques, CGG.
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  • Article Type: Research Article

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