MODEL STUDIES OF SHALLOW COMMON-OFFSET SEISMIC DATA

For simplicity, optimum-window common-offset data-acquisition procedures are frequently employed to collect near-surface, high-resolution, seismic reflection data. However, because of large incidence angles, interpretations of the data often cannot be evaluated accurately using zero-offset simulations alone. Common-offset hammer seismic data collected in the central Appalachian plateau province of West Virginia are examined in this paper. This study indicates that offset simulations may be required to determine the origins of events observed at a given offset. Offset simulations also help determine whether amplitude variations with offset have a significant effect on the appearance of events observed at the optimum offset. -from Author