Letter | Published:

Interpretation of Data from Electrical Resistivity Geophysical Surveys

Nature volume 162, page 187 (31 July 1948) | Download Citation



MR. J. M. HOUGH has described in Nature of May 22 a graphical method of analysing results from the four-electrode method of determining electrical resistivity, when applied to a horizontally stratified earth. He cites particularly the case of a two-layer earth. In a paper published in the Proceedings of the Physical Society, 47, 589 (1935), we described this graphical method and gave the universal curves for the case when the four electrodes are equally spaced. The analysis for the distribution of an alternating current with parallel flow in a two-layer earth was also given. Comparisons were made between results obtained with alternating currents and those obtained with the four-electrode method.

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  1. British Electrical and Allied Industries Research Association, Greenford, Middlesex.

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    • W. G. RADLEY


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