Descr: Migration of contaminants througy aquicludes is often compromised by the existance of fracturing within hte aquiclude. This project investigates the feasability of detecting fractures within an easily identifiable aquiclude from multichannel P and Shear wave observations. Multichannel, multicomponent near-surface observations are to be collected at a wetland site just north of Aspen CO. The aquiclude in question consists of granitic basement approximately 200 feet deep. Because the site is in the middle of a valley, fracturing within basement is exposed on eaither side of the site and can be mapped from surface observations. This can be used as verification of the interpreted seismic observations. The field plan consists of collecting several radially distributed lines of multicomponent, multichannel observations in a effort to observe both P and Shear wave anisotropy related to bedrock fracturing.
