Detecting Fracture Anisotropy Using Geological Mapping and Vertical Electrical Resistivity Survey

The two areas were studied and have shown different trend of fracture orientations at surface and in the subsurface. Area 1 showed overlap between fractures oriented at shallow subsurface reveal by electrical resistivity anisotropy polygon plot and that of fracture orientation on the surface rock exposures in the study area; suggest that fractures are penetrative and hard-linked. Thus, the fractures at both levels are produced by similar tectonic. Whereas, lack of overlap between fracture orientations at both surface and subsurface at Area 2 suggests that the surface fractures are not deep seated, and that fractures at both scales are thought to be produced by different tectonic events