CHARACTERIZING VOID SPACES AND HYDROLOGICAL FEATURES ASSOCIATED WITH A KARSTIC SWALE AT GRAND CAVERNS, VA USING RESISTIVITY
The data was processed (using AGI's Earthimager 2D software) and several resistivity profiles were generated. We were able to detect both open-air and collapsed, sediment filled spaces associated with the swale, as well as areas of porous bedrock. We were also able to identify the areas where the water infiltrates and collects in the subsurface, and correlate this to the surface features as well.
Our results will help us understand the establishment and evolution of surficial features in karstic environments, which will benefit further geophysical studies and hazard assessment in the region.