Figure F1. Regional setting of the Leg 180 drill sites. Sites 1118, 1109, and 1115 are on MCS line EW9510-1366, a segment of which (bold black line) is presented in Figure F2, . Thin black lines indicate the location of regional seismic reflection data. HAWAII-MR1 side-scan data is overlain on bathymetry illuminated from the north (Goodliffe et al., 1999). The two westernmost spreading segments are evident from the high backscatter region trending east-west near 9°50´S on the eastern side of the plot. The bathymetry contour interval is 200 m, labeled in kilometers.

Figure F1. Regional setting of the Leg 180 drill sites. Sites 1118, 1109, and 1115 are on MCS line EW9510-1366, a segment of which (bold black line) is presented in Figure F2. Thin black lines indicate the location of regional seismic reflection data. HAWAII-MR1 side-scan data is overlain on bathymetry illuminated from the north (Goodliffe et al., 1999). The two westernmost spreading segments are evident from the high backscatter region trending east-west near 9°50´S on the eastern side of the plot. The bathymetry contour interval is 200 m, labeled in kilometers.