FN Archimer Export Format PT J TI Changes in the intermediate water masses of the Mediterranean Sea during the last climatic cycle ‐ New constraints from neodymium isotopes in foraminifera BT AF Colin, Christophe Duhamel, Maxence Siani, Giuseppe Dubois‐Dauphin, Quentin Ducassou, Emmanuelle Liu, Zhifei Wu, Jiawang Revel, Marie Dapoigny, Arnaud Douville, Eric Taviani, Marco Montagna, Paolo AS 1:1;2:1;3:1;4:1;5:2;6:3;7:3;8:4;9:5;10:5;11:6;12:7; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:; C1 Université Paris‐Saclay CNRS GEOPS 91405 Orsay ,France Université de Bordeaux UMR‐CNRS 5805‐EPOC Allée Geoffroy St Hilaire33615 Pessac Cedex ,France State Key Laboratory of Marine Geology Tongji University Shanghai200092, China Université de la Cote d'Azur CNRS OCA IRD, Geoazur 250 rue Albert Einstein06500 Valbonne, France Laboratoire des Sciences du Climat et de l'Environnement LSCE/IPSL CEA‐CNRS‐UVSQ Université Paris‐Saclay F‐91191 Gif‐sur‐Yvette, France Institute of Marine Science ISMAR‐CNR Via Gobetti 10140129 Bologna ,Italy Institute of Polar Sciences ISP‐CNR, Via Gobetti 10140129 Bologna, Italy C2 UNIV PARIS SACLAY, FRANCE UNIV BORDEAUX, FRANCE UNIV TONGJI, CHINA UNIV NICE, FRANCE LSCE, FRANCE CNR ISMAR, ITALY CNR, ITALY IF 3.992 TC 4 UR https://archimer.ifremer.fr/doc/00679/79129/81621.pdf https://archimer.ifremer.fr/doc/00679/79129/84864.docx LA English DT Article CR ETNA 82 MD 124 / GEOSCIENCES 2 PROMETE 90 (1) PROMETE 90 (2) BO Le Suroît Marion Dufresne DE ;Central Mediterranean Sea;foraminifera;last climatic cycle;Neodymium isotopic composition;paleo‐hydrology;sapropels AB Variations in Mediterranean thermohaline circulation of the Quaternary are still not well constrained whereas they have been considered to have an influence on the Atlantic Meridional Overturning Circulation and on the oxygenation of waters in the deep basins of the Mediterranean Sea. εNd analyses have been carried out on planktonic foraminifera of cores collected in the central Mediterranean Sea to constrain water mass exchange between the Eastern and Western Mediterranean Sea (EMS and WMS) during the last climatic cycle. εNd records from the WMS and EMS display similar higher values during warm substages of interglacial Marine Isotopic Stage (MIS) 1 and 5. This suggests an efficient connection between the two Mediterranean sub‐basins and the transfer of radiogenic waters to the Tyrrhenian Sea via the Levantine Intermediate Water (LIW). Conversely, during glacial MIS, εNd of the intermediate depth of the Tyrrhenian Sea are less radiogenic than the EMS, implying limited hydrological connection between sub‐basins during low sea‐level stands. Superimposed on these glacial‐interglacial variations, increased εNd occurred during Heinrich Stadial events. This suggests a reduction in the formation of unradiogenic WIW in the Gulf of Lions due to the input of relatively fresh surface Atlantic water to the WMS and/or the inflow of radiogenic glacial LIW and upper EMDW to the Tyrrhenian Sea as a result of an active EMS convection related to saltier and colder conditions. Such potential millennial‐scale pulses of LIW intrusion into the Tyrrhenian Sea may have lead to an enhanced Mediterranean Outflow Water intensity in the Gibraltar Strait. PY 2021 PD APR SO Paleoceanography And Paleoclimatology SN 2572-4517 PU American Geophysical Union (AGU) VL 36 IS 4 UT 000644566400020 DI 10.1029/2020PA004153 ID 79129 ER EF