oa High Resolution, Shallow 3-D Seismic Survey For Environmetnal And Geotechnical Sites

The University of California at Berkeley has a multiple test well site in Richmond, that is a<br>prime candidate for high resolution 3-D surface reflection seismic survey techniques. More than ten<br>wells, covering an area of 100m by 100m, have been drilled into looseIy consolidated sand and gravel<br>units seperated by clay layers, with a basement unit of a hard shale at an approximate depth of 37m.