Abstract

We thank J. C. Wynn and D. D. Snyder for their interest in our work. Their response to our paper on the differentially normalized electromagnetic investigation method (DNME) (Veeken et al., 2009) shows they are not convinced that the registered anomalies are related to induced polarization effects. They suggest the response can be explained better by simple coupling and conductivity effects. We have a number of compelling reasons to believe their opinion is not correct. Determination of the nature and proper differentiation of the recorded signal, into induced polarization (IP) and/or electromagnetic (EM) components, is of vital importance in the DNME experiment. The argumentation of Dr. Wynn and Dr. Snyder is quite correct, when only the potential difference ΔU is considered and the variance in time of the special DNME attributes is ignored.

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