Orals BG7.1
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Thursday, 16 April 2015 Room G5 Chairperson: Helge Niemann, Tomas Feseker, Alina Stadnitskaia |
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subsurface
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| 08:30–08:45 |
EGU2015-81
Characterization of methane hydrates and free gas deposits at Nyegga CNE03 pockmark, using marine CSEM and seismic joint-interpretation Eric Attias, Karen Weitemeyer, Martin Sinha, Tim Minshull, Marion Jegen-Kulcsar, and Christian Berndt |
| 08:45–09:00 |
EGU2015-9387
Gas-controlled seafloor doming on Opouawe Bank, offshore New Zealand Stephanie Koch, Christian Berndt, Joerg Bialas, Matthias Haeckel, Gareth Crutchley, Cord Papenberg, Dirk Klaeschen, and Jens Greinert |
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sediments
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| 09:00–09:15 |
EGU2015-2397
Modeling methane bubble growth in fine-grained muddy aquatic sediments: correlation with sediment properties Regina Katsman |
| 09:15–09:30 |
EGU2015-8998
Geochemical signature of methane-related archaea associated with gas hydrate occurrences on the Sakhalin slope Lee DongHun, Jin youngkeun, Gal JongKu, Minami Hirotsugu, Hachikubo Akihiro, and Shin KyungHoon |
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water column
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| 09:30–09:45 |
EGU2015-5097
The Bubble Transport Mechanism: Indications for a bubble-mediated transfer of microorganisms from the sediment into the water column Oliver Schmale, Christian Stolle, Jens Schneider von Deimling, Ira Leifer, Katrin Kießlich, Stefan Krause, Andreas Frahm, and Tina Treude |
| 09:45–10:00 |
EGU2015-4717
Seasonal methane accumulation and release from a gas emission site in the central North Sea Susan Mau, Torben Gentz, Jan-Hendrik Körber, Marta Torres, Miriam Römer, Heiko Sahling, Paul Wintersteller, Roi Martinez, Michael Schlüter, and Elisabeth Helmke |
| 10:00–10:15 |
EGU2015-10550
Fluxes of dissolved methane from the seafloor at the landward limit of the gas hydrate stability zone offshore western Svalbard Carolyn Graves, Lea Steinle, Helge Niemann, Gregor Rehder, Rebecca Fisher, Dave Lowry, Doug Connelly, and Rachael James |
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Coffee Break
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| 10:30–10:45 |
EGU2015-9514
Methane from shallow seep areas of the NW Svalbard Arctic margin does not reach the sea surface Anna Silyakova, Jens Greinert, Pär Jansson, and Bénédicte Ferré |
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lacustrine / terrestrial
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| 10:45–11:00 |
EGU2015-15851
River methane hot-spots: Continuous methane ebullition measurements over an annual cycle linked to river sediment production Jeremy Wilkinson, Andreas Maeck, Zeyad Ashboul, and Andreas Lorke |
| 11:00–11:15 |
EGU2015-1330
Dynamics of atmospheric-methane oxidation in glacier-forefield soils Eleonora Chiri, Philipp A. Nauer, Edda-Marie Rainer, Ruth Henneberger, Josef Zeyer, and Martin H. Schroth |
| 11:15–11:30 |
EGU2015-536
Microbial life in volcanic/geothermal areas: how soil geochemistry shapes microbial communities Antonina Lisa Gagliano, Walter D'Alessandro, Andrea Franzetti, Francesco Parello, Marcello Tagliavia, and Paola Quatrini |
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ice / efflux to atmosphere
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| 11:30–11:45 |
EGU2015-7036
Using stable isotopes to unravel the role of sea-ice in the methane cycle Célia Julia Sapart, Jiayun Zhou, Gauthier Carnat, Bruno Delille, Helge Niemann, Thomas Röckmann, Carina van der Veen, and Jean-Louis Tison |
| 11:45–12:00 |
EGU2015-12765
Understanding of the atmospheric methane evolution and change over the last 30 years with focus on the Arctic region Stephen Platt, Cathrine Lund Myhre, Stig Dalsoren, Ove Hermansen, and Gunnar Myhre |
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paleo
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| 12:00–12:15 |
EGU2015-1493
Methanogenesis produces strong 13C-enrichment in stromatolites of Lagoa Salgada, Brazil: A modern analogue for Palaeo-/Neoproterozoic stromatolites? Patrick Meister, Daniel Birgel, Rebecca Lundberg, Thomas Horat, Tomaso Bontognali, Anelize Bahniuk Rumbelsperger, Carlos Rezende, Crisógono Vásconcelos, and Judith A. McKenzie |