Figure F10. Summary of biostratigraphic and lithologic observations. Seismic correlation of Horizons A, B, B', and Y and of unconformities (U) and the accretionary complex are also shown (see Figs. F5, F6, F8). See text for more detailed descriptions of the characteristics of each lithologic unit. Note that Unit III along the north-south transect is not correlative with Unit III on the east-west transect. Correlation between these two transects is tentative. A comparison between the age constraints shown here and the geometric relationships shown in Figure F5 suggests that Unit III at Site 1245 was deposited very rapidly at the base of the continental slope (i.e., in the trench) and, thus, represents a recent addition to the accretionary complex. Unit II was deposited in a very active tectonic environment on the lower slope and varies laterally in both thickness and lithology. Thorough integration of the seismic, biostratigraphic, and lithologic data is an ongoing postcruise project.