FN Archimer Export Format PT J TI Lost islands in the northern Lesser Antilles: possible milestones in the Cenozoic dispersal of terrestrial organisms between South-America and the Greater Antilles BT AF Cornée, Jean-Jacques Münch, Philippe Philippon, Mélody BouDagher-Fadel, Marcelle Quillévéré, Frédéric Melinte-Dobrinescu, Mihaela Lebrun, Jean-Frédéric Gay, Aurelien Meyer, Solène Montheil, Lény Lallemand, Serge Marcaillou, Boris Laurencin, Muriel Legendre, Lucie Garrocq, Clément Boucard, Milton Beslier, Marie-Odile Laigle, Mireille Schenini, Laure Fabre, Pierre-Henri Antoine, Pierre-Olivier Marivaux, Laurent AS 1:1;2:2;3:1;4:3;5:4;6:5;7:1;8:2;9:2,6;10:2;11:2;12:6;13:7;14:1;15:2;16:1;17:6;18:6;19:6;20:8;21:8;22:8;23:; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:;20:;21:;22:;23:; C1 Géosciences Montpellier, CNRS-Université des Antilles-Université de Montpellier, F-97159 Pointe à Pitre, Guadeloupe, France Géosciences Montpellier, CNRS-Université de Montpellier-Université des Antilles, F-34095 Montpellier, France Office of the Vice-Provost (Research), University College London, 2 Taviton Street, London WC1H 0BT, UK Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622 Villeurbanne, France National Institute of Marine Geology and Geoecology, 23–25 Dimitrie Onciul Street, PO Box 34–51, 70318 Bucharest, Romania Geoazur, Université de la Côte d'Azur, CNRS, Observatoire de la Côte d'Azur, IRD, F-06560 Valbonne, France Laboratoire d'Océanologie et Géosciences, Université de Lille, 59655 Villeneuve d'Ascq, France Institut des Sciences de l'Evolution de Montpellier (ISE-M), Univ Montpellier, CNRS, IRD, EPHE, F-34095 Montpellier, France C2 UNIV ANTILLES, FRANCE UNIV MONTPELLIER, FRANCE UNIV COLL LONDON, UK UNIV LYON, FRANCE GEOECOMAR, ROMANIA UNIV NICE, FRANCE UNIV LILLE, FRANCE ISEM, FRANCE IF 12.038 TC 27 UR https://archimer.ifremer.fr/doc/00687/79941/82841.pdf LA English DT Article CR ANTITHESIS LEG1 ANTITHESIS LEG2 GARANTI BO L'Atalante Pourquoi pas ? DE ;Lesser Antilles;Cenozoic basins;Biostratigraphy;Seismic stratigraphy;Palaeogeography;Vertical motions AB Our study aims to reconstruct the palaeogeography of the northern part of the Lesser Antilles in order to analyse whether emerged areas might have existed during the Cenozoic, favouring terrestrial faunal dispersals between South America and the Greater Antilles along the present-day Lesser Antilles arc. The stratigraphy and depositional environments of the islands of Anguilla, St Martin, Tintamarre, St Barthélemy, Barbuda and Antigua are reviewed in association with multichannel reflection seismic data acquired offshore since the 80's in the Saba, Anguilla and Antigua Banks and in the Kalinago Basin, including the most recent academic and industrial surveys. Seven seismic megasequences and seven regional unconformities are defined, and calibrated from deep wells on the Saba Bank and various dredges performed during marine cruises since the 70's in the vicinity of the islands. Onshore and offshore correlations allow us to depict an updated and detailed sedimentary organisation of the northern part of the Lesser Antilles from the late Eocene to the late Pleistocene. Paleogeographic reconstructions reveal sequences of uplift and emergence across hundredswide areas during the late Eocene, the late Oligocene, the early middle-Miocene and the latest Miocene-earliest Pliocene, interspersed by drowning episodes. The ∼200 km-long and ∼20 km-wide Kalinago Basin opened as an intra-arc basin during the late Eocene - early Oligocene. These periods of emergence may have favoured the existence of episodic mega-islands and transient terrestrial connections between the Greater Antilles, the Lesser Antilles and the northern part of the Aves Ridge (Saba Bank). During the Pleistocene, archipelagos and mega-islands formed repeatedly during glacial maximum episodes. PY 2021 PD JUL SO Earth-science Reviews SN 0012-8252 PU Elsevier BV VL 217 UT 000651144000001 DI 10.1016/j.earscirev.2021.103617 ID 79941 ER EF