Print Email Facebook Twitter Experimental validation of the electrokinetic theory and development of seismoelectric interferometry by cross-correlation Title Experimental validation of the electrokinetic theory and development of seismoelectric interferometry by cross-correlation Author Schoemaker, E.C. Grobbe, N. Schakel, M.D. De Ridder, S.A.L. Slob, E.C. Smeulders, D.M.J. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2012-02-10 Abstract We experimentally validate a relatively recent electrokinetic formulation of the streaming potential (SP) coefficient as developed by Pride (1994). The start of our investigation focuses on the streaming potential coefficient, which gives rise to the coupling of mechanical and electromagnetic fields. It is found that the theoretical amplitude values of this dynamic SP coefficient are in good agreement with the normalized experimental results over a wide frequency range, assuming no frequency dependence of the bulk conductivity. By adopting the full set of electrokinetic equations, a full-waveform wave propagation model is formulated. We compare the model predictions, neglecting the interface response andmodeling only the coseismic fields, with laboratory measurements of a seismic wave of frequency 500 kHz that generates electromagnetic signals. Agreement is observed between measurement and electrokinetic theory regarding the coseismic electric field. The governing equations are subsequently adopted to study the applicability of seismoelectric interferometry. It is shown that seismic sources at a single boundary location are sufficient to retrieve the 1D seismoelectric responses, both for the coseismic and interface components, in a layered model. To reference this document use: http://resolver.tudelft.nl/uuid:9c8f789b-6728-4aee-bd17-1fa7d3f80e4a DOI https://doi.org/10.1155/2012/514242 Publisher Hindawi Publishing Corporation ISSN 1687-8868 Source http://www.hindawi.com/journals/ijgp/2012/514242/ Source International Journal of Geophysics, 2012 (2012) Part of collection Institutional Repository Document type journal article Rights © 2012 F. C. Schoemaker et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Files PDF schoemaker_2012.pdf 2.86 MB Close viewer /islandora/object/uuid:9c8f789b-6728-4aee-bd17-1fa7d3f80e4a/datastream/OBJ/view