Volume 22 Number 4
  • E-ISSN: 1365-2478



Two‐layer type curves of apparent frequency effect for the Wenner configuration are presented. The formulation is based on the normal definition of frequency effect in terms of resistivities measured at different frequencies plus the definition of apparent resistivity over two horizontal layers as a function of first and second layer resistivities. The use of these type curves in the interpretation of multilayer apparent frequency‐effect curves is described and some field examples are given.


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  1. Carpenter, E. W. and Habberjam, G. M., 1956, A tri‐potential method of resistivity prospecting, Geophysics21, 455–469.
    [Google Scholar]
  2. Dieter, K., Paterson, N. R. and Grant, F. S., 1969, IP and resistivity type curves for three‐dimensional bodies, Geophysics34, 615–632.
    [Google Scholar]
  3. Fraser, D. C., Keevil, N. B., Jr. and Ward, S. H., 1964, Conductivity spectra of rocks from the Craigmont ore environment, Geophysics29, 832–847.
    [Google Scholar]
  4. Galbraith, J. N., Simpson, S. M. and Cantwell, T., 1964, Computer applications in geophysical modelling, Quart. Colorado Sch. Mines59, 67–79.
    [Google Scholar]
  5. Hallof, P. G., 1964, A comparison of the various parameters employed in the variable‐frequency induced‐polarization method, Geophysics29, 425–433.
    [Google Scholar]
  6. Keller, G. V. and Frischknecht, F. C., 1966, Electrical Methods in Geophysical Prospecting. Pergamon Press, Oxford , 519 pp.
    [Google Scholar]
  7. Mooney, H. M., Orellana, E., Pickett, H. and Tornheim, L., 1966, A resistivity computation method for layered earth models, Geophysics31, 192–203.
    [Google Scholar]
  8. Seigel, H. O., 1959, Mathematical formulation and type curves for induced polarization, Geophysics24, 547–566.
    [Google Scholar]
  9. Smith‐Rose, R. L., 1934, Measured electrical properties of soils for alternating currents, Inst. Elec. Eng. J.75, 231–237.
    [Google Scholar]
  10. Ward, S. H. and Fraser, D. C., 1967, Conduction of electricity in rocks, Mining Geophysics (Soc. Explor. Geophysicists)2, 197–223.
    [Google Scholar]
  11. Worthington, P. F., 1972, A geoelectrical investigation of the drift deposits in Northwest Lancashire, Geol. J.8, 1–16.
    [Google Scholar]
  • Article Type: Research Article
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