We thank André Revil for his interest in our paper (McMillan and Oldenburg, 2014) and for raising some concerns, and we would like to add a few comments in reply.

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Mr. Revil mentions in his discussion two assumptions that have been made in our paper. The first is that the electric conductivity of rocks containing metallic ores, such as sulfides, is frequency dependent. The second assumption states that we expect to see conductive anomalies in the presence of sulfide and gold mineralization, which goes against theoretical and laboratory studies outlined in Revil (2014). These assumptions are closely...

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