Figure F25. A. Plot showing relationship between predicted depths to key horizons and sequence boundaries (dashed) and corrected depths (arrowed). Corrected depths are based on the check-shot survey data (heavy line), shown plotted at the lower limit of the envelope of stacking velocities (derived from six common depth points from site-survey seismic data adjacent to this site). The integrated sonic log, based on interval transit-time data, is plotted as a heavy dashed line. B. Interval velocities derived from the seven check-shot stations shown overlying the velocity log (derived from the compressional sonic trace).