Figure 5. Tentative seismic stratigraphy of the Leg 199 56-Ma transect, from Moore et al. (manuscript submitted to Paleoceanography). Horizons "G" through "O" are identified based on comparisons with the work of Mayer et al. (1985) in the equatorial Pacific. Horizons "M" through "E3" were identified by Moore et al. (manuscript submitted to Paleoceanography). Arrows indicate the locations and ages of near-surface sediments recovered at the base of piston cores taken along the transect on EW9709. These ages were used to check our correlation with horizons identified in Mayer et al. (1985). Dashed vertical lines indicate the location of major fracture zones. TWT = two-way traveltime. FZ = fracture zone.