Figure F10. Results of the near-offset VSP at Site 1250. A. and A´. East-west slice from the 3-D seismic reflection data split at the location of the drill hole. B. Traveltime vs. depth data. Manual picks are used. Similar results are obtained using the automatic picks. Gray lines trace primary reflections from time to depth. BSR = bottom-simulating reflector. C. Velocity function derived from the data in B (blue line) compared to velocities measured with wireline sonic logs. Gray dots = VP, red dots = VS. This graph is enlarged in Figure F5.

Figure F10. Results of the near-offset VSP at Site 1250. A. and A´. East-west slice from the 3-D seismic reflection data split at the location of the drill hole. B. Traveltime vs. depth data. Manual picks are used. Similar results are obtained using the automatic picks. Gray lines trace primary reflections from time to depth. BSR = bottom-simulating reflector. C. Velocity function derived from the data in B (blue line) compared to velocities measured with wireline sonic logs. Gray dots = V_P, red dots = V_S. This graph is enlarged in Figure F5.