Figure 2. Diagrammatic lithologic sequences of Aptian olistostrome and peridotite basement at Sites 897 and 899. The illustration was made according to sampled lithologies and core depths, but is not keyed to recovered core intervals. Boundary of Units III and IV from Shipboard Scientific Party (1994a, 1994b). Note that sediments at Core 149-897C-70R indicate that the top of the basement is at 731.4 mbsf. For drawing clarity, veining has not been represented in smaller breccia boulders. A datum at the bottom of Unit III has been used to align the sequence.