In presenting a variety of induced polarization spectral data, Zonge and Wynn refer to a paper published earlier by us (Van Voorhis et al., 1973) which deals with the same topic. We feel Zonge and Wynn have misrepresented our measuring techniques, data, and conclusions in their references to our paper. Our principal objections center on three statements by the authors.
The main objectives of “Recent Advances and Applications in Complex Resistivity Measurements” were to demonstrate the utility of making spectral measurements in standard field surveys and to show that rocks have characteristic signatures which do not conform to the constant phase model advocated by Nelson and Van Voorhis. We can understand the questions arising out of the relative inaccuracy statement.
The effect of electrode contact resistance and capacitive coupling on complex resistivity measurements