Figure F11. Correlation between seismic two-way traveltime (ms) and depth for all Leg 194 sites. These data were obtained by check-shot surveys (solid circles), virtual check shots (open circles), and integration of sonic log and shipboard velocity data between check shots. Virtual check shots are provided by obvious links between high-amplitude reflections on the seismic data and unique petrophysical horizons in the cores (e.g., basement and hardgrounds).