Climatic "pause" during Termination II identified in shallow and intermediate waters off the Iberian margin

• Published in: Quaternary Science Reviews
• Main Authors: Gouzy, A., Malaizé, B., Pujol, C., Charlier, K.
• Other Authors: UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), Institut de Radioprotection et de Sûreté Nucléaire (IRSN)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2004
• Subjects: Geochronology; Ice; Perturbation techniques; Surface waters; Circulation patterns; Dating; Intermediate waters; Isotopic study; Climatology; benthic foraminifera; Eemian; oceanic circulation; paleoceanography; paleoclimate; plankton; Quaternary; Atlantic Ocean; Iberian Margin; Foraminifera; geo; envir; Greenland; Greenland ice core; Greenland Ice core Project; ice core; Ice Sheet; North Atlantic Deep Water; North Atlantic
• Online Access: https://doi.org/10.1016/j.quascirev.2004.03.002; https://hal.archives-ouvertes.fr/hal-03047255

The sequence of Termination II, from the end of marine isotopic stage 6 (MIS 6) to MIS 5e, is observed through an isotopic study (δ18O) of planktic and benthic foraminifera in core MD99-2331 (42°09′N; 09°41′W), collected in the North Atlantic, on the Iberian margin. First, to build an approximate time scale, a record of the planktic δ18O signal is achieved from the top of the core (Holocene) to MIS 6. The remarkable similarity of this planktic record to the Greenland Ice Core Project ice core δ18O record allows a rough dating of our core. A focus on Termination II reveals one "standstill" in the benthic record. This "pause" can be linked either to a perturbation of North Atlantic oceanic circulation pattern, as a slowing down of the North Atlantic Deep Water formation, or to an interruption in polar ice sheet melting, which could be a more global phenomenon. © 2004 Elsevier Ltd. All rights reserved.