Bold line on both A and B indicates location of seismic line in Figure 3. Bathymetry is derived from mapped seafloor reflection in migrated 3-D seismic records. Cross section from seismic depth section extending from west of Site 1045 to Site 1044. The seismic horizon was interpreted along the zero crossing between the first negative and first positive seafloor reflections on a grid of roughly every 10th line and every 50th common midpoint. Between interpreted lines, the horizon was mapped using the Landmark TM Zone Autopicker algorithm, which extends horizon interpretations throughout the data set by following the specified trace characteristics.
Illumination is from the southeast, and gray scale shades are histogram equalized.
Overall bathymetry is increasing to the east, but small scale bathymetric variations reveal at least three distinct structural regions. These downstep to the north-northwest and are related to the topography of the underlying oceanic crust. Summary of LWD data from Site 1044 compared to core data from Site 672. Summary of LWD data from Site 1045. Summary of LWD data from Site 1046 compared to core data from Holes 959B and 949C. Shaded bars across diagram show fault zones identified in cores.