Fig. 2: Bottom water oxygenation changes in the central Pacific- and Atlantic Southern Ocean during Marine Isotope Stage (MIS) 12 to 10. | Nature Communications

Fig. 2: Bottom water oxygenation changes in the central Pacific- and Atlantic Southern Ocean during Marine Isotope Stage (MIS) 12 to 10.

From: Southern Ocean evidence for recurring West Antarctic Ice Sheet destabilization during Marine Isotope Stage 11

Fig. 2

a Sedimentation rate (cm/ka) at IODP Site U1540. Globigerina bulloides (dark red) and Uvigerina spp. (light red) b U/Ca and c U/Mn ratios at IODP Site U1540. d) Bulk sedimentary authigenic U (aU) levels26 at ODP Site 1094. The stippled line indicates the aU record according to an adjusted age model (see Results). e Summer sea surface temperature (SST) estimates based on N. pachyderma abundances at IODP Site U1540 (red)73 and water isotope (δD) variations of the Antarctic EPICA Dome C (EDC) ice core30 (gray, on the AICC2023 ice age scale38). f Stratigraphic alignment of C. kullenbergi and C. wuellerstorfi δ18O variations at IODP Site U1540 (red) and Cibicidoides spp. δ18O variations at ODP Site 1094 (blue)36 to the global benthic foraminiferal LR04 δ18O stack (gray)37 with indication of tiepoints between them at the bottom (circles: IODP Site U1540, triangles36: ODP Site 1094). Open symbol shows the adjusted tiepoint for ODP Site 1094 (see Results). MIS and substages are indicated following ref. 85, with MIS11c indicated by the gray box28. Transient peaks in foraminiferal b U/Ca and c U/Mn levels at IODP Site U1540 during MIS11 are highlighted with blue boxes labeled with roman numbers, i.e., deoxygenation events (E) EI-EIII.

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