Fig. 4: Compilation of paleoclimatic records during the past 800 ka.
From: Enhanced deep Southern Ocean stratification during the lukewarm interglacials
a Stack of sea level reconstructions84; b Ba/Fe ratio at ODP Site 109411; c Babio at site PS255142; d208Pb/206Pb time series in sec-1, note that this record is shown inverted. The black line represents 5-point runing mean values; e sea salt Na (ssNa) flux, a proxy for sea ice extent85; f atmospheric CO22; g Antarctic air temperature anomaly1. The white and yellow vertical shadings denote glacial and interglacial periods, respectively, based on the standard marine isotope stage (MIS) classification from the LR04 benthic δ18O stack86. Interglacial MISs are numbered at the top. The box with the grey dotted outline illustrates the time interval with lukewarm pre-MBE interglacial periods recorded in crust Haxby. MBE Mid-Brunhes Event.
