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Orals BG5.2

BG5.2 Media

Methane and fluid flow in the marine and terrestrial realm: geo(physical) aspects, biogeochemical cycling, microbial metabolisms, environmental impacts and climate change
Convener: Helge Niemann  | Co-Conveners: Tomas Feseker , Alina Stadnitskaia , Adriano Mazzini , Matteo Lupi 
Orals
 / Tue, 19 Apr, 08:30–12:00  / 13:30–15:00  / Room 1.61
Posters
 / Attendance Tue, 19 Apr, 17:30–19:00  / Foyer N

Tuesday, 19 April 2016
Room 1.61
Chairperson: Helge Niemann, Tom Feseker, Alina Stadnitskaia, Adriano Mazzini, Matteo Lupi
Hydrocarbon exploration/reservoirs

08:30–08:45
EGU2016-13152
Lithological controls on gas hydrate saturation: Insights from signal classification of NMR downhole data
Klaus Bauer, Johannes Kulenkampff, Jan Henninges, and Erik Spangenberg
08:45–09:00
EGU2016-8682
Non-equilibrium simulation of CH4 production through the depressurization method from gas hydrate reservoirs
Khadijeh Qorbani and Bjørn Kvamme
Gas hydrates and sedimentary processes

09:00–09:15
EGU2016-11958
An experimental challenge: Unraveling the dependencies of ultrasonic and electrical properties of sandy sediments with pore-filling gas hydrates
Katja Heeschen, Erik Spangenberg, Karl Seyberth, Mike Priegnitz, and Judith M. Schicks
09:15–09:30
EGU2016-2078
Submarine creeping landslide deformation controlled by the presence of gas hydrates: The Tuaheni Landslide Complex, New Zealand
Felix Gross, Joshu Mountjoy, Garethy Crutchle, Stephanie Koch, Jörg Bialas, Ingo Pecher, Susi Woelz, Anke Dannowski, Jon Carey, Aaron Micallef, Christoph Böttner, Katrin Huhn, and Sebastian Krastel
09:30–09:45
EGU2016-7593
Arctic greenhouse-gas storage and release modulated by late-glacial ice sheet fluctuations
Alexey Portnov, Jurgen Mienert, Sunil Vadakkepuliyambatta, Henry Patton, Karin Andreassen, Monica Winsborrow, Jochen Knies, and Alun I. Hubbard
09:45–10:00
EGU2016-9489
The impact of increased sedimentation rates associated with the decay of the Fennoscandian ice-sheet on gas hydrate stability and focused fluid flow at the Nyegga pockmark field, offshore mid-Norway
Jens Karstens, Haflidi Haflidason, Lukas Becker, Hans Petter Sejrup, Christian Berndt, Sverre Planke, and Torbjørn Dahlgreen
Coffee break
AOM and benthic food web structures

10:30–10:45
EGU2016-1159
Organic geochemical signatures controlling methane outgassing at active mud volcanoes in the Canadian Beaufort Sea
Lee DongHun, Jin YoungKeun, Kim JungHyun, Niemann Heldge, Gal JongKu, and Choi BoHyung
10:45–11:00
EGU2016-7569
Infaunal and megafaunal benthic community structure associated with cold seeps at the Vestnesa Ridge (79 N°)
Emmelie K.L. Åström, Michael L. Carroll, Arunima Sen, William G. Ambrose Jr., Anna Silyakova, and JoLynn Carroll
11:00–11:15
EGU2016-12108
Shell growth and environmental control of methanophyllic Thyasirid bivalves from Svalbard cold seeps
Michael Carroll, Emmelie Åström, William Ambrose, William Locke, Graham Oliver, Wei-Li Hong, and JoLynn Carroll
Ocean methane seepage, water column methanotrophy, methane efflux to the atmosphere

11:15–11:30
EGU2016-8968
Methane gas seepage – Disregard of significant water column filter processes?
Jens Schneider von Deimling and Oliver Schmale
11:30–11:45
EGU2016-15118
Methanotrophic activity in the water column above shallow gas flares west of Prins Karls Forland, Arctic Ocean
Friederike Gründger, Mette M. Svenning, Helge Niemann, Anna Silyakova, Pavel Serov, Alexey K. Pavlov, Mats A. Granskog, Bénédicte Ferre, and JoLynn Carroll
11:45–12:00
EGU2016-2158
Dense bottom gravity currents and their impact on pelagic methanotrophy at oxic/anoxic transition zones
Oliver Schmale, Srefan Krause, Peter Holtermann, Nicole C. Power Guerra, and Lars Umlauf
Lunch break
13:30–13:45
EGU2016-14546
Quantifying Methane Emissions from the Arctic Ocean Seabed to the Atmosphere
Stephen Platt, Ignacio Pisso, Norbert Schmidbauer, Ove Hermansen, Anna Silyakova, Benedicte Ferré, Sunil Vadakkepuliyambatta, Gunnar Myhre, Jürgen Mienert, Andreas Stohl, and Cathrine Lund Myhre
Terrestrial methane dynamics: consumption, food webs and efflux to the atmosphere

13:45–14:00
EGU2016-11170
Methane and Dissolved Organic Carbon Sustain an Ecosystem within a Density Stratified Coastal Aquifer of the Yucatan Peninsula, Mexico. Evidence for a Subterranean Microbial Loop?
David Brankovits, John W. Pohlman, Helge Niemann, Mary Beth Leigh, Michael Casso, Fernando Alvarez Noguera, Moritz F. Lehmann, and Thomas M. Iliffe
14:00–14:15 EGU2016-4987
Methanotrophic activity in hyperalkaline waters of the Kizildag ophiolite complex (Turkey) (withdrawn)
Antonina Lisa Gagliano, Marcello Tagliavia, Walter D'Alessandro, Angela Cuttita, Paola Quatrini, and Galip Yuce
14:15–14:30
EGU2016-15069
The Arctic CH4 sink and its implications for the permafrost carbon feedbacks to the global climate system
Christian Juncher Jørgensen, Jesper Christiansen, Tue Mariager, and Gustaf Hugelius
14:30–14:45
EGU2016-7067
Methane emission bursts from permafrost environments during autumn freeze-in: new insights from ground penetrating radar
Norbert Pirk, Telmo Santos, Carl Gustafson, Anders J. Johansson, Fredrik Tufvesson, Frans-Jan W. Parmentier, Mikhail Mastepanov, and Torben R. Christensen
Methane sensor development

14:45–15:00
EGU2016-13741
A new fast-response, real-time and continuous dissolved methane sensor.
Jack Triest, Jerome Chappellaz, and Roberto Grilli