Self-potential anomalies in Cerro de Pasco and Hualgayoc areas (Peru) revisited |
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| Authors: | DS Vagshal SD Belyaev |
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| Institution: | Urals Committee on Geology, Ekaterinburg, Russia, and;Urals Branch of Center for Preparation and Implementation of International Projects, Rm 1003, 23 Mira St., Ekaterinburg, 620049 Russia |
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| Abstract: | Self-potential anomalies with unexplained high values have been observed in various places. Such anomalies were reported in Peru more than 30 years ago. An explanation is proposed based on the electrokinetic effect obtained when a topographic high occurs above a rock layer through which water filtrates and which itself lies over a highly resistive layer. In such a case a fairly high self-potential may occur. Conversely, when one of these conditions is not met, the self-potential anomaly at the earth's surface resulting from the electrokinetic effect is strongly attenuated. |
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