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Detecting Fracture Anisotropy Using Geological Mapping and Vertical Electrical Resistivity SurveyNormal access

Authors: G.O Mosuro, K.O. Omosanya, I.O. Kehinde and V.U. Ukaegbu
Event name: Near Surface Geoscience 2013 - 19th EAGE European Meeting of Environmental and Engineering Geophysics
Session: Geophysics in Engineering Geology
Publication date: 09 September 2013
DOI: 10.3997/2214-4609.20131381
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 520.08Kb )
Price: € 20

Summary:
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


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