Figure 1. (A) (WWW-only) ODP Leg 190 Nankai Trough drilling area. Box illustrates the location of the map shown in Figure 2. The straight arrow shows the convergence direction of the Shikoku Basin beneath Japan. (B) ODP Leg 190 Nankai Trough drilling area, 3-D (dark gray shaded rectangle) and regional (light gray shaded lines) seismic data, and previous DSDP/ODP drill sites (black squares). Large rectangle outlines area shown in Figure 2. The straight arrow shows the convergence direction of the Shikoku Basin beneath Japan. Inset is a tectonic map of the Philippine Sea region that includes the Nankai Trough.
