Figure F12. Composite Southern Ocean benthic delta18O record for the Pliocene-Pleistocene produced by combining data from Site 1090 (2.6-0 Ma) (Venz and Hodell, 2002) and Site 1092 (2.6-4.4 Ma) (Andersson et al., 2002). Shown are some of the major climatic and paleoceanographic events inferred from Leg 177 and other studies. IRD = ice-rafted debris, MBT = mid-Brunhes Transition, MPT = mid-Pleistocene Transition, S.O. = Southern Ocean, SSST = summer sea-surface temperature, PFZ = Polar Front Zone, eMDM = early Matumaya Diatom Maximum, lMDM = late Matumaya Diatom Maximum.

Figure F12. Composite Southern Ocean benthic

¹⁸O record for the Pliocene-Pleistocene produced by combining data from Site 1090 (2.6-0 Ma) (Venz and Hodell, 2002) and Site 1092 (2.6-4.4 Ma) (Andersson et al., 2002). Shown are some of the major climatic and paleoceanographic events inferred from Leg 177 and other studies. IRD = ice-rafted debris, MBT = mid-Brunhes Transition, MPT = mid-Pleistocene Transition, S.O. = Southern Ocean, SSST = summer sea-surface temperature, PFZ = Polar Front Zone, eMDM = early Matumaya Diatom Maximum, lMDM = late Matumaya Diatom Maximum.