FN Archimer Export Format PT J TI Salt morphologies and crustal segmentation relationship: New insights from the Western Mediterranean Sea BT AF Bellucci, Massimo Aslanian, Daniel Moulin, Maryline Rabineau, Marina Leroux, Estelle Pellen, Romain Poort, Jeffrey Del Ben, Anna Gorini, Christian Camerlenghi, Angelo AS 1:1,2,3;2:1;3:1;4:2;5:1;6:1;7:4;8:3;9:4;10:5; FF 1:;2:PDG-REM-GM-LGS;3:PDG-REM-GM-LGS;4:;5:PDG-REM-GM-LGS;6:PDG-REM-GM-LGS;7:;8:;9:;10:; C1 Ifremer, Department of Marine Geosciences, BP 70, 29280, Plouzané, France IUEM, Laboratoire Geosciences Océan, CNRS, 29280, Plouzané, France Department of Mathematics and Geosciences, University of Trieste, Trieste, Italy Sorbonne Université, CNRS, Institut des Sciences de la Terre de Paris, ISTeP, Paris, France National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy C2 IFREMER, FRANCE UBO, FRANCE UNIV TRIESTE, ITALY UNIV SORBONNE, FRANCE OGS, ITALY SI BREST SE PDG-REM-GM-LGS UM LGO IN WOS Ifremer UPR copubli-france copubli-europe copubli-univ-france IF 12.038 TC 3 UR https://archimer.ifremer.fr/doc/00724/83641/88807.pdf LA English DT Article CR SARDINIA WESTMEDFLUX WESTMEDFLUX-2 BO L'Atalante DE ;Salt tectonics;Passive margin;Western Mediterranean Sea;Heat flow;Messinian Salinity Crisis AB Salt tectonics at salt-bearing margins is often interpreted as the combination of gravity spreading and gravity gliding, mainly driven by differential sedimentary loading and margin tilting, respectively. Nevertheless, in the Western Mediterranean Sea, the classical salt-tectonic models are incoherent with its morpho-structural setting: Messinian salt was deposited in a closed system formed several Ma before the deposition, horizontally throughout the entire deep basin, above a homogenous multi-kilometer pre-Messinian thickness. The subsidence is purely vertical in the deep basin, implying a regional constant initial salt thickness. The post-salt overburden is homogenous and the distal salt deformation occurred before the mid-lower slope normal-fault activation. Instead, the compilation of MCS and wide-angle seismic data highlighted a clear coincidence between crustal segmentation and salt morphology domains. The salt structures change morphology at the boundary between different crustal natures. Regional thermal anomalies and/or fluid escapes, associated with the exhumation phase, or mantle-heat segmentation, could therefore play a role in adding a further component to the already known salt-tectonics mechanisms. The compilation of crustal segmentation and salt morphologies in different salt-bearing margins, such as the Santos, Angolan, Gulf of Mexico and Morocco-Nova Scotia margins, seems to depict the same coincidence. In view of the evidences observed in the Western Mediterranean Sea, the influence of the temperature parameter on salt deformation should not be overlooked and warrants further investigation. PY 2021 PD NOV SO Earth-science Reviews SN 0012-8252 PU Elsevier BV VL 222 UT 000703726000001 DI 10.1016/j.earscirev.2021.103818 ID 83641 ER EF