Evidence from three-dimensional seismic tomography for a substantial accumulation of gas hydrate in a fluid-escape chimney in the Nyegga pockmark field, offshore Norway

• Published in: Journal of Geophysical Research
• Main Authors: Plaza-Faverola, A., Westbrook, Graham K., Ker, Stephan, Exley, Russel J. K., Gailler, A., Minshull, T.A., Broto, Karine
• Other Authors: Géosciences Marines (GM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Department of Geology, University of Tromsø (UiT), University Birmingham, University of Birmingham Birmingham, Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), National Oceanography Centre Southampton (NOC), University of Southampton, IFP Energies nouvelles (IFPEN)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2010
• Subjects: travel-time tomogramphy; P wave velocity; gas hydrates; [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]; [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]; [SDE.MCG]Environmental Sciences/Global Changes; Norway; Nyegga; The Chimney; Vøring Plateau; Methane hydrate
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-00563995; https://hal-insu.archives-ouvertes.fr/insu-00563995/document; https://hal-insu.archives-ouvertes.fr/insu-00563995/file/JGR-Plaza-Faverola_2010.pdf; https://doi.org/10.1029/2009JB007078

International audience In recent years, it has become evident that features commonly called gas chimneys provide major routes for methane to pass through the methane-hydrate stability zone in continental margins and escape to the ocean. One of many such chimneys lying beneath pockmarks in the southe...