FN Archimer Export Format PT J TI Geomorphology of a modern carbonate slope system and associated sedimentary processes: Example of the giant Great Abaco Canyon, Bahamas BT AF Recouvreur, Audrey Fabregas, Natacha Mulder, Thierry Hanquiez, Vincent Fauquembergue, Kelly Tournadour, Elsa Gillet, Hervé Borgomano, Jean Poli, Emmanuelle Kucharski, Jean‐Baptiste Wilk, Stanislas AS 1:1;2:2;3:1;4:1;5:1;6:3,4;7:1;8:5;9:;10:1;11:1; FF 1:;2:;3:;4:;5:;6:PDG-REM-GM-LAD;7:;8:;9:;10:;11:; C1 Université de Bordeaux EPOC UMR 5805 33615 Pessac Cedex ,France Department of Earth Science University of Bergen Allégaten 41 5007 Bergen ,Norway IFREMER Géosciences Marines CS 10070, 29280 Plouzané, France Geological Survey of New Caledonia DIMENC BP 465 98845 Nouméa New Caledonia ,France Centre Européen de Recherche et d’Enseignement de Géosciences de l’Environnement Aix‐Marseille Université – CNRS (UMR7330) – IRD (UMR 161) – COLLEGE de France – USC INRA – OSU – Institut PYTHEAS – Technopole Environnement Arbois‐Méditerranée BP80 13545 Aix en Provence Marseille CEDEX 04 ,France C2 UNIV BORDEAUX, FRANCE UNIV BERGEN, NORWAY IFREMER, FRANCE GEOL SURVEY NEW CALEDONIA, FRANCE UNIV AIX MARSEILLE, FRANCE SI NOUMEA SE PDG-REM-GM-LAD IN WOS Ifremer UPR copubli-france copubli-europe copubli-univ-france IF 3.81 TC 7 UR https://archimer.ifremer.fr/doc/00636/74787/75034.pdf LA English DT Article CR CARAMBAR CARAMBAR 2 CARAMBAR 3 BO Le Suroît L'Atalante DE ;Backscatter;Bahamas;carbonate slope;echofacies;giant canyon;sea floor morphology;sedimentary processes AB The large acoustic data set acquired during the Carambar cruises is composed of high resolution bathymetry, backscatter data and very‐high resolution seismic lines which allow for an overview of the morphology and sediment transfer processes from the shallow upper slope to the abyssal plain of a modern carbonate system: the north‐eastern slope of the Little Bahama Bank. Surficial distribution of the acoustic facies and echofacies reflects a wide variety of sedimentary processes along and across the slope. The western sector of the Little Bahama Bank is dominated by depositional processes whereas its eastern sector, which is incised in the lower slope by giant canyons, is affected by erosion and bypass processes. Datasets suggest that currents play an important role both along‐slope sedimentary processes and in the abyssal plain. The Antilles Current appears to affect a large part of the middle and lower slopes. The absence of sizable present‐day channel/levée complexes or lobes at the mouth of the canyon – revealed by the bathymetric map – indicates that the southward flowing Deep Western Boundary Current influences modern abyssal sediment deposition. Based on depositional processes and indicators of canyon maturity observed in facies distribution, the current study proposes that differential subsidence affects the eastern versus western part of the bank. The morphology of the Great Abaco Canyon and Little Abaco Canyon, which extends parallel to the platform, and the Little Bahama Bank slope appears to be related to the Great Abaco Fracture Zone. PY 2021 PD JAN SO Sedimentology SN 0037-0746 PU Wiley VL 68 IS 1 UT 000562894000001 BP 266 EP 293 DI 10.1111/sed.12777 ID 74787 ER EF