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| | Abstract | | Fault planes can be a hydrogeological boundary sealing groundwater and/or a conductive surface. Faults also often exhibit relatively lower electric conductivity than intact rock under the influence of fully saturated fault gouge and breccia. Seismic and electrical surveys were performed at LBNL to identify the location and to characterize hydraulic characteristics of a fault by using geophysical prospecting methods. It was concluded that electrical surveys are better suited for identifying the existence of a fault showing good contrast between fractured and intact parts than seismic reflection surveys. |
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