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Morphologie et remplissage des vallées fossiles sud-armoricaines : Apport de la stratigraphie sismique

Abstract : Recent acquisition of3000 Km ofhigh resolution seismic and morpho-bathymetry EM 1000in south coastal area brittany bring informations which clarify south brittany cenozoic history and comprehension in the genesis of quaternary valleys and estuarines. Studie is based on the cartography of morphologie, stratigraphie and structural elements of the main coastal rivers (Odet, Blavet, Etel, Vilaine). Five hydrographie paleo-network have been caracterised. Studies of longitudinal and transversal profiles evolution, marines abrasions surfaces, the sedimentary evolution of valley fills, and comparaison with cotemporaneous network preserved of the atlantic margin bave allowed to discuss oflithologic, tectonnic and climate impact (role) on the dynamic hydrographie paleo-network.
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https://tel.archives-ouvertes.fr/tel-00007291
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Submitted on : Thursday, November 4, 2004 - 11:01:20 AM
Last modification on : Monday, January 27, 2020 - 1:51:31 PM
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  • HAL Id : tel-00007291, version 1

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David Menier. Morphologie et remplissage des vallées fossiles sud-armoricaines : Apport de la stratigraphie sismique. Minéralogie. Université Rennes 1, 2003. Français. ⟨tel-00007291⟩

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