Multichannel analysis of surface waves to map bedrock

In many geologic settings, topographic variations and discontinuities in the surface of bedrock can influence the transport and eventual fate of contaminants introduced at or near the ground surface. Determining the nature and location of anomalous bedrock can be an essential component of hydrologic characterization. Preliminary analysis of the hydrologic characteristics of a site in Olathe, Kansas, U.S., based primarily on borehole data alone, suggested that a cluster of fractures and/or an unmapped buried stream channel may influence fluid movement along the drill- defined bedrock surface.