Petrologic data from Site U1308 over the last three glaciations, supplement to: Obrochta, Stephen P; Crowley, Thomas J; Channell, James E T; Hodell, David A; Baker, Paul A; Seki, Arisa; Yokoyama, Yusuke (2014): Climate variability and ice-sheet dynamics during the last three glaciations. Earth and Planetary Science Letters, 406, 198-212

Stephen P Obrochta, Thomas J Crowley, James E T Channell, David A Hodell, Paul A Baker, Arisa Seki & Yusuke Yokoyama
A composite North Atlantic record from DSDP Site 609 and IODP Site U1308 spans the past 300,000 years and shows that variability within the penultimate glaciation differed substantially from that of the surrounding two glaciations. Hematite stained grains exhibit similar repetitive down-core variations within the Marine Isotope Stage (MIS) 8 and 4-2 intervals, but little cyclic variability within the MIS 6 section. There is also no petrologic evidence, in terms of detrital carbonate-rich (Heinrich) layers,...
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