Merge Spectral induced polarisation page under Induced polarization - Frequency ___domain measurements?

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I think it would make sense to merge the content of this stub into Induced polarization under Frequency ___domain measurements. In practice and theory, the spectral characteristics of induced polarization can be measured in both time- and frequency ___domain so one common Wiki page on the topic is motivated. Per-Ivar (talk) 13:10, 27 September 2017 (UTC)Reply