Abstract
High-resolution geophysical techniques can be employed as a means of characterizing the lithological changes within materials frequently known to be variable. Ground penetrating radar (GPR) profiling using 50, 100, 200, and 400 MHz antennae and electrical resistivity imaging have been used to investigate high-conductivity United Kingdom Triassic sandstone lithology and moisture content changes. The investigation site is located outside the School of Geography, Earth and Environmental Sciences at the University of Birmingham on a gentle grassy slope. Three GPR and electrical imaging lines were completed over this site. The results of the observations reveal a higher degree of both vertical and lateral heterogeneity of the highly conductive sandstones. The results obtained using these two high-resolution geophysical tools agree reasonably well with each other. These techniques appear to be useful for high resolution and continuous mapping of the subsurface sediments.
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