Lithological classification assisted by the joint inversion of electrical and seismic data at a control site in northeast Mexico

In this paper, evidence is presented that the combination of geospectral images and geophysical signatures (resistivity-velocitycross-plots) is a good tool to provide a natural visualization of the distribution and variations of lithological features in a test site. This was confirmed by the correlation between the electrical resistivity and seismic velocity values obtained after cross-gradient joint inversion at two profiles and geotechnical information provided by shallow boreholes in a site located in the Earth Sciences School grounds in Linares, Northeastern Mexico. The results obtained from this study show how the cross-gradient joint inversion facilitates the analysis of hydrological estimates and assists in lithological classification of subsurface materials. (C) 2009 Elsevier B.V. All rights reserved.