Consistently dated Atlantic sediment cores ...

• Main Authors: Waelbroeck, Claire, Lougheed, Bryan C, Vázquez Riveiros, Natalia, Missiaen, Lise, Pedro, Joel B, Dokken, Trond, Hajdas, Irka, Wacker, Lukas, Abbott, Peter M, Dumoulin, Jean-Pascal, Thil, François, Eynaud, Frédérique, Rossignol, Linda, Fersi, Wiem, Albuquerque, Ana Luiza Spadano, Arz, Helge Wolfgang, Austin, William EN, Came, Rosemarie E, Carlson, Anders Eskil, Collins, James A, Dennielou, Bernard, Desprat, Stéphanie, Dickson, Alex, Elliot, Mary, Farmer, Christa, Giraudeau, Jacques, Gottschalk, Julia, Henderiks, Jorijntje, Hughen, Konrad A, Jung, Simon, Knutz, Paul Cornils, Lebreiro, Susana Martin, Lund, David C, Lynch-Stieglitz, Jean, Malaizé, Bruno, Marchitto, Thomas M, Martínez Méndez, Gema, Mollenhauer, Gesine, Naughton, Filipa, Nave, Silvia Osorio, Nürnberg, Dirk, Oppo, Delia W, Peck, Victoria L, Peeters, Frank J C, Penaud, Aurélie, Portilho-Ramos, Rodrigo Costa, Repschläger, Janne, Roberts, Jenny, Rühlemann, Carsten, Salgueiro, Emilia
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2019
• Subjects: Atlantic sediment cores; consistent dating; last 40 ky; Greenland; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.900073; https://doi.pangaea.de/10.1594/PANGAEA.900073

Rapid changes in ocean circulation and climate have been observed in marine-sediment and ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining the possibility of rapid climate shifts in response to anthropogenic greenhouse gas forcing. To date, these rapid changes in climate and ocean circulation are still not fully explained. One obstacle hindering progress in our understanding of the interactions between past ocean circulation and climate changes is the difficulty of accurately dating marine cores. Here, we present a set of 92 marine sediment cores from the Atlantic Ocean for which we have established age-depth models that are consistent with the Greenland GICC05 ice core chronology, and computed the associated dating uncertainties, using a new deposition modeling technique. This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate ...