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	Provedor de dados ArchiMer (2) Autor Cremiere, Antoine (2) Bayon, Germain (1) Charlou, Jean-luc (1) Donval, Jean-pierre (1) Pierre, Catherine (1) Ponzevera, Emmanuel (1) Ruffine, Livio (1) Zehnder, B. H. (1) Mais... Palavra-chave Authigenic carbonates (1) Carbon and oxygen isotopes (1) Carbon dioxide (1) Chromatography (1) Cold seeps (1) Destabilisation (1) Formation (1) Gas hydrates (1) Novel apparatus (1) Raman spectroscopy (1) Sapropel event (1) Sea of Marmara (1) Thermogenic (1) U-Th dating (1) Mais... Tipo do documento Text (2) Ano 2013 (1) 2010 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Experimental study of gas hydrate formation and destabilisation using a novel high-pressure apparatus ArchiMer Ruffine, Livio; Donval, Jean-pierre; Charlou, Jean-luc; Cremiere, Antoine; Zehnder, B. H.. A novel variable-volume type high-pressure apparatus has been designed, constructed and used for gas hydrate investigations. The apparatus has an operating temperature ranging from 253 K to 473 K and pressure ranging from 0.1 MPa to 60 MPa. Its central component consists of a viewing windows cell to which several sensors or analytical instruments can be connected. At its present configuration, a Raman spectrometer and a gas chromatograph are connected for the study of the liquid (or solid) and the gas phases respectively. The apparatus was used for the study of two different systems. The first system was composed of carbon dioxide (CO2) and water for which the hydrate formation and dissolution has been investigated by injecting water into liquid CO2. The... Tipo: Text Palavras-chave: Gas hydrates; Thermogenic; Carbon dioxide; Formation; Destabilisation; Novel apparatus; Raman spectroscopy; Chromatography. Ano: 2010 URL: http://archimer.ifremer.fr/doc/00006/11759/8472.pdf Paleo-environmental controls on cold seep carbonate authigenesis in the Sea of Marmara ArchiMer Cremiere, Antoine; Bayon, Germain; Ponzevera, Emmanuel; Pierre, Catherine. The factors controlling fluid emission dynamics at ocean margins are poorly understood. In particular, there are significant uncertainties on how fluid seepage at cold seeps may have responded to abrupt environmental changes in the geological past. This study reports on a detailed geochemical investigation of seafloor carbonate crusts sampled at cold seeps along the submerged part of the North Anatolian Fault system in the Sea of Marmara - an inland sea, which has experienced major paleo-environmental changes over the last deglaciation period. We also analyzed a series of authigenic carbonate concretions recovered from two sediment cores at the Western-High ridge, an active fluid venting area. The ages of seafloor carbonate crusts derived from isochron... Tipo: Text Palavras-chave: U-Th dating; Authigenic carbonates; Sea of Marmara; Cold seeps; Sapropel event; Carbon and oxygen isotopes. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00161/27249/25488.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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