Figure F2. Depth migrated seismic Line CR-20 showing the locations of Sites 1039, 1040, and 1043. Note the high-amplitude reflector between 4.4 and 4.55 km depth marking the décollement surface separating the underthrust section that was drilled at Site 1039 from the wedge sediments drilled at Sites 1040 and 1043. Sites 1041 and 1042 were also drilled in wedge on the upper plate and are located upslope from Sites 1040 and 1043 (see Fig. F1 and site chapters in Kimura, Silver, Blum, et al., 1997).