Experimental Validation of the Electrokinetic Theory and Development of Seismoelectric Interferometry by Cross-Correlation
Figure 2
Schematic of a “standard” geometry for a seismoelectric survey (modified from Haines [5], Kroeger [6, 15]). One fluid-saturated porous layer (layer 1) overlies a porous half-space (layer 2), with contrasting medium parameters (panels (a) and (c)). The seismic source generates longitudinal wave (labelled 1) that is recorded by surface geophones (left part of panel (b)). This wave also creates a coseismic electric field that is registered by the surface electrodes (right part of panel (b)). When the longitudinal wave arrives at the interface between the porous layers, the interface field is generated (labelled 2), that is also recorded by the surface electrodes (right part of panel (d)).
