Journal
RUSSIAN GEOLOGY AND GEOPHYSICS
Volume 59, Issue 3, Pages 313-323Publisher
RUSSIAN ACAD SCIENCES, SIBERIAN BRANCH, VS SOBOLEV INST GEOL & MINEROL
DOI: 10.1016/j.rgg.2018.03.009
Keywords
dispersion relations; causality; minimum phase; induced polarization; controlled-source electromagnetics; magnetotellurics
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Funding
- FASO Russia [0149-2018-0005]
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The problem of causality in low-frequency electrical prospecting with artificial and natural sources is considered. We present numerical examples of the application of dispersion relations to transfer function spectra used in the induced polarization and controlled-source electromagnetic methods and to the components of telluric, horizontal magnetic, and other magnetotelluric tensors. Approaches to the processing and interpretation of spectra with violated dispersion relations are proposed. (C) 2018, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.
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