Evangelista H. auteur aut IRD Gurgel M. auteur aut IRD Sifeddine Abdelfettah auteur aut IRD Rigozo N. R. auteur aut IRD Boussafir M. auteur aut IRD text journalArticle eng text/pdf born digital access Records of the climatic impacts of the North Atlantic Bond cycles over the subtropical Southern Hemisphere remain scarce, and their mechanism is a topic of active discussion. We present here an alkenone-based reconstructed sea surface temperature (SST) of a sediment core retrieved from the Brazilian Southwestern Tropical Atlantic (SWTA), Rio de Janeiro, together with a sediment SST record from the Cariaco Basin. The sediment cores span the period 2,100 B.P. - 11,100 B.P. Morlet-wavelet analysis detected marked periodic signals of similar to 0.8, similar to 1.7 and similar to 2.2 kyr, very similar and with comparable phases to the hematite-stained-grain time series from the Northern North Atlantic in which the cyclic pattern was recognized as Bond cycles. Our result corroborates the modeled surface ocean anti-phase thermal relation between the North and the South Atlantic. We attribute this behavior to the slowing of the Atlantic Meridional Overturning Circulation. The relative SST warming at Rio de Janeiro and the relative cooling at Cariaco were comparatively more pronounced during the early Holocene (from II to 5 kyr B.P.) than in more recent time. specialized Bond cycles Atlantic overturning South Atlantic Holocene Alkenone ATLANTIQUE SUD ZONE TROPICALE BRESIL 032 064 Sifeddine Abdelfettah ed. edt IRD Meyers P.A. ed. edt IRD Valdés J. ed. edt IRD Leite Días da Silva P. ed. edt IRD 415 no spécial 21-27 2014 0031-0182 https://www.documentation.ird.fr/hor/fdi:010063594 10.1016/j.palaeo.2014.07.019 0031-0182 [F B010063594] https://www.documentation.ird.fr/hor/fdi:010063594 https://www.documentation.ird.fr/intranet/publi/2015/01/010063594.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-02-02 2017-08-23 fdi:010063594 fre