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	Provedor de dados 5 (1) Autor Cannat, Mathilde (1) Fouquet, Yves (1) Mangeney, Anne (1) Normand, Alain (1) Ondreas, Helene (1) Palavra-chave Basalts (1) Detachment faults (1) Landslides (1) Mid-ocean ridges (1) Serpentinized peridotites (1) Tipo do documento Text (1) Ano 2013 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última High-resolution bathymetry reveals contrasting landslide activity shaping the walls of the Mid-Atlantic Ridge axial valley 5 Cannat, Mathilde; Mangeney, Anne; Ondreas, Helene; Fouquet, Yves; Normand, Alain. Axial valleys are found along most slow-spreading mid-ocean ridges and are one of the most prominent topographic features on Earth. In this paper, we present the first deep-tow swath bathymetry for the axial valley walls of the Mid-Atlantic Ridge. These data allow us to analyze axial valley wall morphology with a very high resolution (0.5 to 1 m compared to 50 m for shipboard multibeam bathymetry), revealing the role played by landslides. Slow-spreading ridge axial valleys also commonly expose mantle-derived serpentinized peridotites in the footwalls of large offset normal faults (detachments). In our map of the Ashadze area (lat. 13 degrees N), ultramafic outcrops have an average slope of 18 degrees and behave as sliding deformable rock masses, with... Tipo: Text Palavras-chave: Landslides; Detachment faults; Basalts; Mid-ocean ridges; Serpentinized peridotites. Ano: 2013 URL: https://archimer.ifremer.fr/doc/00284/39516/38004.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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