부산대학교 도서관

The impedance tensor and tipper are shown to be non-causal in some classes of 2-D and 3-D magnetotelluric (MT) models, including those widely encountered off shore. At the same time, examination of a large database of onshore MT records yields only a handful of non-causal tensors, being non-causal due to the influence of nearby artificial conductors rather than some exotic geological conditions. This result implies that the actual chance to encounter a non-causal impedance tensor or tipper in terrestrial MT exploration is vanishingly small, thus securing the universal applicability of the dispersion relation technique for quality assessment of the mentioned transfer functions.
Author(s): Nikita Zorin [sup.1] [sup.2] [sup.3] , Dmitry Alekseev [sup.4] [sup.5] [sup.6] , Dmitrii Epishkin [sup.1] , Hisayoshi Shimizu [sup.2] , Denis Yakovlev [sup.1] , Sergey Zaytsev [sup.1] [sup.3] [sup.7] [...]