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	Provedor de dados ArchiMer (2) Autor Blouin, Arthur (2) Callot, Jean‐paul (1) Imbert, Patrice (1) Pierron, Alexandra (1) Sultan, Nabil (1) Palavra-chave Mud volcano (2) Sediment remobilization (2) Bassin sud caspien (1) Exsolution de gaz (1) Gassy sediment (1) Geohazard (1) Génération de boue (1) Methane (1) Mud generation (1) Numerical modeling (1) Remobilisation de sédiments (1) South Caspian Basin (1) Sédiment gazeux (1) Sédiments (géologie) -- Teneur en gaz (1) Volcan de boue (1) Volcans de boue (1) Mais... Tipo do documento Text (2) Ano 2020 (1) 2019 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Evolution model for the Absheron Mud Volcano: from stratified sediments to fluid mud generation ArchiMer Blouin, Arthur; Sultan, Nabil; Pierron, Alexandra; Imbert, Patrice; Callot, Jean‐paul. Submarine mud volcanoes are one of the most spectacular methane expulsion features at the seafloor and they represent a significant geohazard worldwide. In this work we focus on the physical processes controlling the initiation and early evolution of the Absheron mud volcano (AMV). Our analyses were carried out based on basin modeling calibrated thanks to existing seismic interpretation of the AMV, analysis of sediment samples from seabed, and data from two exploration wells. Acquired laboratory geotechnical data allowed us to derive laws considering the impact of gas exsolution on host sediment behaviors. In this study, we identified key geological and physical conditions that led to mud volcano formation: by coupling diffusion processes with... Tipo: Text Palavras-chave: Mud volcano; Numerical modeling; Geohazard; Sediment remobilization; Methane. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00658/77002/78258.pdf Formation de boue à partir de sédiments stratifiés dans un contexte de volcanisme de boue: le rôle du gaz ArchiMer Blouin, Arthur. This manuscript assesses the role of gas in the mud generation processes by focusing on a dense and multidisciplinary dataset of the active Absheron mud volcano (AMV), South Caspian Basin. The study is divided in three main parts: definition of the mud source; analysis of the hydro-mechanical behavior of compacted sediments after gas exsolution; numerical modeling of the AMV formation.First, I identified the source of the AMV as being the Anhydritic Surakhany Fm. (ASF): seismic geomorphology evidences a depletion zone below the AMV and samples from surface mudflows indicate a Pliocene age and the same mineralogy as the ASF. The ASF is composed of interstratified anhydritic beds and low-density overpressured and undercompacted clay-rich layers. The mud... Tipo: Text Palavras-chave: Bassin sud caspien; Exsolution de gaz; Génération de boue; Remobilisation de sédiments; Sédiment gazeux; Volcan de boue; Sédiments (géologie) -- Teneur en gaz; Volcans de boue; Gassy sediment; Mud generation; Mud volcano; Sediment remobilization; South Caspian Basin. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00640/75223/75365.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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