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De Prunele, Alexis / Ruffine, Livio / Riboulot, Vincent / Peters, Carl A. / Croguennec, Claire / Guyader, Vivien / Pape, Thomas / Bollinger, Claire / Bayon, Germain / Caprais, Jean-claude / Germain, Yoan / Donval, Jean-pierre / Marsset, Tania / Bohrmann, Gerhard / Geli, Louis / Rabiu, Abdulkarim / Lescanne, Marc / Cauquil, Eric / Sultan, Nabil - 2017The Niger Delta is one of the largest hydrocarbon basin offshore Africa and it is well known for the presence of active pockmarks on the seabed. During the Guineco-MeBo cruise in 2011, long cores were taken from a pockmark cluster in order to investigate the state of its current activity. Gas...Contributeur (s):
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Ruffine, Livio / Germain, Yoan / Polonia, Alina / De Prunele, Alexis / Croguennec, Claire / Donval, Jean-pierre / Pitel-roudaut, Mathilde / Ponzevera, Emmanuel / Caprais, Jean-claude / Brandily, Christophe / Grall, Celine / Bollinger, Claire / Geli, Louis / Gasperini, Luca - 2015Within the Sea of Marmara, the highly active North Anatolian Fault (NAF) is responsible for major earthquakes (Mw>=7), and acts as a pathway for fluid migration from deep sources to the seafloor. This work reports on pore water geochemistry from three sediment cores collected in the Gulfs of...Contributeur (s):
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Lemaitre, Nolwenn / Bayon, Germain / Ondreas, Helene / Caprais, Jean-claude / Freslon, Nicolas / Bollinger, Claire / Rouget, Marie-laure / De Prunele, Alexis / Ruffine, Livio / Olu-le Roy, Karine / Sarthou, Geraldine - 2014Seawater samples were collected by submersible above methane seeps in the Gulf of Guinea (Regab and Baboon pockmarks) in order to investigate the behaviour of iron (Fe), manganese (Mn) and rare earth elements (REE) during fluid seepage. Our aim was to determine whether cold seeps may represent...Contributeur (s):
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Wei, Jiangong / Pape, Thomas / Sultan, Nabil / Colliat, Jean-louis / Himmler, Tobias / Ruffine, Livio / De Prunele, Alexis / Dennielou, Bernard / Garziglia, Sebastien / Marsset, Tania / Peters, Carl A. / Rabiu, Abdulkarim / Bohrmann, Gerhard - 2015A joint research expedition between the French IFREMER and the German MARUM was conducted in 2011 using the R/V Pourquoi pas? to study gas hydrate distributions in a pockmark field (1141 – 1199 meters below sea surface) at the continental margin of Nigeria. The sea floor drill rig MeBo of MARUM was...Contributeur (s):
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Sultan, Nabil / Bohrmann, G. / Ruffine, Livio / Pape, T. / Riboulot, Vincent / Colliat, J. -l. / De Prunele, Alexis / Dennielou, Bernard / Garziglia, Sebastien / Himmler, Tobias / Marsset, Tania / Peters, C. A. / Rabiu, A. / Wei, J. - 2014In previous works, it has been suggested that dissolution of gas hydrate can be responsible for pockmark formation and evolution in deep water Nigeria. It was shown that those pockmarks which are at different stages of maturation are characterized by a common internal architecture associated to gas...Contributeur (s):