The seven OBHs from which the 3D data were obtained and the 10 airgun profiles are labeled. First arrivals and reflections from the base of the subducted oceanic crust indicated by red and pink dots, respectively. Final 3D velocity and interface model. Unsampled regions of the model have been omitted. The positions of the vertical and horizontal slices are labeled in each plot.
Black dots indicate the reflecting points for each interface.
Correlation of 3D velocity model with large-scale geologic features.