Figure F34. A. Plot showing relationship between predicted depths to key horizons and sequence boundaries (dashed) and corrected depths (arrowed) for Site 1129. Corrected depths are based on the check-shot survey data (heavy solid line), shown plotted toward the base of the envelope of stacking velocity curves derived from five common depth points of the site-survey seismic data immediately adjacent to this site (the sixth stacking velocity curve appears to be incorrect). The integrated sonic log, based on interval transit time data, is plotted as a heavy dashed line. B. Interval velocities derived from the 10 check-shot stations shown overlying the velocity log (derived from the compressional sonic trace).