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Hydrogeologic Characterization Using A Shallow Seismic Reflection Survey At Fort Ord, California
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 6th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, Apr 1993, cp-209-00049
Abstract
Shallow seismic reflection profiling was successful in delineating a shallow impermeable layer acting to perch fluids at depths ranging from 125 to 175 ft. The near-surface material was dry dune sands with varying grades of sands and gravels within the upper 20 ft. The seismic data possessed dominant frequencies in excess of 150 Hz resulting in bed resolution on the order of 3<br>ft at depths less than 150 ft. Several key hydrogeologic features were identified and their significance more completely ascertained using the reflection data.