FN Archimer Export Format PT J TI Global oceanic oxygenation controlled by the Southern Ocean through the last deglaciation BT AF Wang, Yi Costa, Kassandra M. Lu, Wanyi Hines, Sophia K. V. Nielsen, Sune G. AS 1:1,2,3;2:1;3:1;4:4;5:1,2,5; FF 1:;2:;3:;4:;5:; C1 Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, USA. Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. Centre de Recherches Pétrographiques et Géochimiques, CNRS, Université de Lorraine, 15 rue Notre Dame des Pauvres, 54501 Vandoeuvre lès Nancy, France. C2 WHOI, USA WHOI, USA UNIV TULANE, USA WHOI, USA UNIV LORRAINE, FRANCE IN DOAJ IF 13.6 TC 0 UR https://archimer.ifremer.fr/doc/00872/98437/107870.pdf https://archimer.ifremer.fr/doc/00872/98437/107871.zip https://archimer.ifremer.fr/doc/00872/98437/107872.pdf LA English DT Article CR IMAGES 3-IPHIS-MD106 BO Marion Dufresne AB Ocean dissolved oxygen (DO) can provide insights on how the marine carbon cycle affects global climate change. However, the net global DO change and the controlling mechanisms remain uncertain through the last deglaciation. Here, we present a globally integrated DO reconstruction using thallium isotopes, corroborating lower global DO during the Last Glacial Maximum [19 to 23 thousand years before the present (ka B.P.)] relative to the Holocene. During the deglaciation, we reveal reoxygenation in the Heinrich Stadial 1 (~14.7 to 18 ka B.P.) and the Younger Dryas (11.7 to 12.9 ka B.P.), with deoxygenation during the Bølling-Allerød (12.9 to 14.7 ka B.P.). The deglacial DO changes were decoupled from North Atlantic Deep Water formation rates and imply that Southern Ocean ventilation controlled ocean oxygen. The coherence between global DO and atmospheric CO 2 on millennial timescales highlights the Southern Ocean’s role in deglacial atmospheric CO 2 rise. PY 2024 PD JAN SO Science Advances SN 2375-2548 PU American Association for the Advancement of Science (AAAS) VL 10 IS 3 DI 10.1126/sciadv.adk2506 ID 98437 ER EF