The last deglaciation in the southern ocean

• Published in: Paleoceanography
• Main Authors: Labracherie, Monique, Labeyrie, Laurent, Duprat, Josette, Bard, Edouard, Arnold, Maurice, Pichon, Jean-Jacques, Duplessy, Jean-Claude
• Other Authors: Département de Géologie et d'Océanographie Talence (DGO), Université Sciences et Technologies - Bordeaux 1 (UB), Centre des Faibles Radioactivités, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1989
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Southern Ocean; Northeast Atlantic
• Online Access: https://hal.science/hal-03554965; https://hal.science/hal-03554965/document; https://hal.science/hal-03554965/file/Paleoceanography%20-%20December%201989%20-%20Labracherie%20-%20The%20Last%20Deglaciation%20in%20the%20Southern%20Ocean.pdf; https://doi.org/10.1029/PA004i006p00629

International audience The isotopic and micropaleontological deglacial records of three deep-sea cores from 44øS to 55øS have been dated by accelerator mass spectrometry. The available records did not allow accurate dating of the initiation of the deglaciation. By 13,000 years B.P., sea surface temperatures reached values similar to the present values. A cool oscillation abruptly interrupted this warm phase between 12,000 and 11,000 years B.P. Initiation of this cooling therefore preceded the northern hemisphere Younger Dryas by approximately 1000 years. Complete warming was reached by 10,000 years B.P., more or less synchronous with the northeast Atlantic