Produção Nacional
Revisado por pares
Consistently dated Atlantic sediment cores over the last 40 thousand years
2019; Nature Portfolio; Volume: 6; Issue: 1 Linguagem: Inglês
10.1038/s41597-019-0173-8
ISSN2052-4463
AutoresClaire Waelbroeck, Bryan C Lougheed, Natalia Vázquez Riveiros, Lise Missiaen, Joel B Pedro, Trond Dokken, Irka Hajdas, Lukas Wacker, Peter M Abbott, Jean‐Pascal Dumoulin, François Thil, Frédérique Eynaud, Linda Rossignol, Wiem Fersi, Ana Luíza Spadano Albuquerque, Helge W. Arz, William E. N. Austin, Rosemarie E Came, Anders E. Carlson, James A Collins, Bernard Dennielou, Stéphanie Desprat, Alex Dickson, Mary Elliot, Christa Farmer, Jacques Giraudeau, Julia Gottschalk, Jorijntje Henderiks, Konrad A Hughen, Simon Jung, Paul Cornils Knutz, Susana Lebreiro, David C Lund, Jean Lynch‐Stieglitz, Bruno Malaizé, Thomas M. Marchitto, Gema Martínez Méndez, Gesine Mollenhauer, Filipa Naughton, Silvia Osorio Nave, Dirk Nürnberg, Delia W Oppo, Victoria L. Peck, Frank J C Peeters, Aurélie Penaud, Rodrigo Costa Portilho-Ramos, Janne Repschläger, Jenny Roberts, Carsten Rühlemann, Emı́lia Salgueiro, Marı́a Fernanda Sánchez Goñi, Joachim Schönfeld, Paolo Scussolini, Luke C Skinner, Charlotte Skonieczny, David Thornalley, Samuel Toucanne, David Van Rooij, Laurence Vidal, Antje H L Voelker, Mélanie Wary, Syee Weldeab, Martin Ziegler,
Tópico(s)Pleistocene-Era Hominins and Archaeology
ResumoAbstract 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 changes over vast regions of the Atlantic Ocean. Moreover, this data set is of direct use in paleoclimate modeling studies.
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