Dansgaard–Oeschger-like events of the penultimate climate cycle: the loess point of view ...

• Main Authors: Rousseau, Denis-Didier, Antoine, Pierre, Boers, Niklas, Lagroix, France, Ghil, Michael, Lomax, Johanna, Fuchs, Markus, Debret, Maxime, Hatté, Christine, Moine, Olivier, Gauthier, Caroline, Jordanova, Diana, Jordanova, Neli
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Columbia University 2020
• Subjects: Paleoclimatology; Paleopedology; Climatic changes; Loess; Greenland; Greenland ice core; ice core
• Online Access: https://dx.doi.org/10.7916/d8-h45m-3a41; https://academiccommons.columbia.edu/doi/10.7916/d8-h45m-3a41

The global character of the millennial-scale climate variability associated with the Dansgaard–Oeschger (DO) events in Greenland has been well-established for the last glacial cycle. Mainly due to the sparsity of reliable data, however, the spatial coherence of corresponding variability during the penultimate cycle is less clear. New investigations of European loess records from Marine Isotope Stage (MIS) 6 reveal the occurrence of alternating loess intervals and paleosols (incipient soil horizons), similar to those from the last climatic cycle. These paleosols are correlated, based on their stratigraphical position and numbers as well as available optically stimulated luminescence (OSL) dates, with interstadials described in various Northern Hemisphere records and in GLt_syn, the synthetic 800 kyr record of Greenland ice core δ18O. Therefore, referring to the interstadials described in the record of the last climate cycle in European loess sequences, the four MIS 6 interstadials can confidently be ...