OS006
Cold Marine Methane Seeps: Seafloor Hydrocarbon and Hydrate Cycling and Impacts to the Hydrosphere, Biosphere, and Atmosphere from Local to Global Scales

Session ID#: 81899

Session Description:
Hydrocarbons escaping the seafloor can profoundly impact the marine environment. This session aims to assemble studies of hydrocarbon seepage in any form including methane from gas hydrate fields or oil from thermogenic hydrocarbon resource fields, from coastal, nearshore to continental margins to deep continental slopes, and fast changing geographic regions like the Arctic. Recent and ongoing seafloor mapping programs reveal a vast diversity of (in)active seeps either as bubble streams in the water column or high backscatter intensity from carbonates. Repeat measurements or continuous in-situ observations from ocean observatory networks exhibit the variation and overall dynamics of these systems. We further aim to include the fate of the hydrocarbons as they are consumed by biological processes are absorbed in the ocean and/or escape into the atmosphere from shallow-water seeps. Possible use as energy resources, are included in this multi-disciplinary session.
Index Terms:

3002 Continental shelf and slope processes [MARINE GEOLOGY AND GEOPHYSICS]
3004 Gas and hydrate systems [MARINE GEOLOGY AND GEOPHYSICS]
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
3050 Ocean observatories and experiments [MARINE GEOLOGY AND GEOPHYSICS]

Primary Convener:  Martin Scherwath, Ocean Networks Canada, Victoria, BC, Canada
Conveners:  Ira Leifer, University of California, Santa Barbara, Solvang, CA, United States, Hiroaki Watanabe, Kyushu University, Department of Mechanical Engineering, Fukuoka, Japan and Tamara Baumberger, Oregon State University, CIMRS, Newport, OR, United States; NOAA Pacific Marine Environmental Laboratory, Newport, OR, United States
Primary Liaison:  Martin Scherwath, Ocean Networks Canada, Victoria, BC, Canada
 
Mineralogical and Isotopic Characterization of Authigenic Fe-S Mineral from the Gas Hydrate-Bearing Sediments of the Sea of Marmara (488306)
Hailin Yang1, Hailong Lu1 and Livio Ruffine2, (1)Peking University, Beijing, China, (2)IFREMER, Plouzané, France
 
Signatures of focused fluid flow and methane venting along the Queen Charlotte Fault off southeastern Alaska and western British Columbia (491706)
Nancy Prouty, USGS, Baltimore, MD, United States, Daniel S Brothers, U.S. Geological Survey, Santa Cruz, CA, United States, Vaughn Barrie, Geological Survey of Canada, Sidney, BC, Canada, Brian D Andrews, USGS Coastal and Marine Science Center Woods Hole, Woods Hole, MA, United States, Rachel M Lauer, Rachel Lauer, Calgary, AB, Canada, H. Gary Greene, Moss Landing Marine Laboratories, Moss Landing, CA, United States, Jared Kluesner, University of California Santa Cruz, Santa Cruz, CA, United States, James E Conrad, US Geological Survey, Menlo Park, CA, United States, Thomas D Lorenson, USGS PCMSC, Santa Cruz, CA, United States, Mike D Law, Student, Department of Geoscience, Calgary, AB, Canada, Kim Conway, Geological Survey of Canada Pacific, Vancouver, Canada, Mary McGann, U.S. Geological Survey, Menlo Park, CA, United States and Peter Dartnell, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States
 
Nitrate dependent anaerobic oxidation of methane drives the carbon cycle in authigenic carbonates along the Atlantic and Pacific Margin (492564)
Sabrina Beckmann1, Ibrahim Farag2, Glenn Christman3, Nancy Prouty4 and Jennifer Biddle3, (1)University of Delaware, Newark, DE, United States, (2)University of Delaware, College of Earth, Ocean and Environment, Lewes, DE, United States, (3)Univ of Delaware, Lewes, DE, United States, (4)USGS, Baltimore, MD, United States
 
Reconstructing the Carbon-Sulfur Geochemistry of Hydrocarbon Seeps at the Gulf of Mexico from Authigenic Carbonates (492719)
Sajjad Abdullajint Akam1, Richard B Coffin1, Timothy Lyons2, Steven M Bates2, Brandi Kiel Reese3 and Clay Carew Clarkson3, (1)Texas A&M University Corpus Christi, Department of Physical and Environmental Sciences, Corpus Christi, TX, United States, (2)University of California Riverside, Department of Earth Sciences, Riverside, CA, United States, (3)Texas A&M University Corpus Christi, Department of Life Sciences, Corpus Christi, TX, United States
 
Long-term Observations on Gas Venting off Vancouver Island from Ocean Networks Canada's NEPTUNE Observatory (493482)
Martin Scherwath1, Michael Riedel2, Miriam Roemer3, Martin Heesemann1 and Joseph James Farrugia1, (1)Ocean Networks Canada, Victoria, BC, Canada, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)Marum and University of Bremen, Bremen, Germany
 
Gas flow offshore Oregon and California, how much is coming out: Results from MBES, SBES, GasQuant, BubbleBox and ROV-based studies during FK190612 (Invited) (501399)
Jens Greinert1, Tim Weiss1, Amanda W Demopoulos2, William W Danforth3 and Carolyn D Ruppel3, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Geosystems - DeepSea Monitoring, Kiel, Germany, (2)US Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL, United States, (3)US Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA, United States
 
Interpretation of Seafloor Geochemical Data from Piston Cores to Understand Occurrences of Thermogenic and Biogenic Gas Seeps and Their Association with Seafloor Geophysical Amplitude Anomalies in the Gulf of Mexico (505786)
Tahmineh Jade Mohajerin, Bureau of Ocean Energy Management New Orleans, New Orleans, LA, United States, William W Shedd, Bureau of Ocean Energy Management, New Orleans, LA, United States, Pierre B. Abadie, Bureau of Ocean Energy Management, New Orleans, United States and Juan Chow, Louisiana State University, Baton Rouge, LA, United States
 
Related research of the carbonate in Haima cold seep, SCS by mean of geochemical and microbial methods (512912)
Zhixing Gu, Tongji University, School of Ocean and Earth Science, Haimen, China and Jiangtao Li, Tongji University, School of Ocean and Earth Science, Shanghai, China
 
Focused Fluid Flows and Seeps Offshore Southern Majunga Basin (NW Madagascar) (515706)
Stéphanie Dupré1, Anne Battani2, Eric Deville2, Carla Scalabrin1, Karine Olu1, Jeffrey Poort3, Sylvain Bermell1, Pauline Dupont1, Arnaud Gaillot1, Charline Guérin SR1, Delphine Pierre1, André Ogor1, Estelle Théréau1, Yannick Thomas1, Gwenael Jouet1 and Stephan Jorry1, (1)IFREMER, Plouzané, France, (2)IFP Énergies Nouvelles, Rueil-Malmaison Cedex, France, (3)Univ Paris 06 CNRS UMR7193, Sorbonne Univ. ISTEP, Paris, France
 
Toward a Global Marine Hydrocarbon Seep Database: Insights and Contributions from the Industry Leader in Marine Hydrocarbon Seep Hunting (515957)
Garrett Alan Mitchell, Christina Maschmeyer, Jamshid Jim Gharib, Stephanie Ingle, Jeffrey Beeson and Edward J Saade, Fugro, Houston, TX, United States
 
An accidental seep on the Gulf of Mexico continental shelf (518714)
Ian R MacDonald1, J. Christopher Taylor2, Camilo Roa3, Carrie O'Reilly4, Mauricio Silva4 and Andrew Mason5, (1)Florida State University, Tallahassee, FL, United States, (2)NOAA Beaufort, National Center for Coastal Ocean Science, Beaufort, NC, United States, (3)Florida International University, Marine Sciences, Miami, United States, (4)Florida State University, EOAS, Tallahassee, United States, (5)NOAA, NCCOS, Silver Spring, United States
 
Estimation for the Variations of Methane Seepages using Quantitative Echosounder in the Sea of Japan (529551)
Masami Shimada, Chiharu Aoyama and Kayoko Tsuruga, Tokyo University of Marine Science and Technology, Tokyo, Japan
 
Tectonic Controls on Gas Venting in the Back-arc Basin of the Mid-Okinawa Trough (531770)
Ang Li1,2, Feng Cai1,2, Nengyou Wu1,2, Qing Li1,2, Guijing Yan1,2, Yunbao Sun1,2, Di Luo1,2 and Gang Dong1,2, (1)Qingdao Institute of Marine Geology, Qingdao, China, (2)Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
 
Methodology to Discriminate Component of Gas Plumes from Dissolved Oxygen Content (532035)
Risa Hamaguchi and Chiharu Aoyama, Tokyo University of Marine Science and Technology, Tokyo, Japan
 
Transportation Method of Methane Hydrate Collected in the Recovery Area of Sea of Japan based on Energy Payback Ratio (EPR) (533747)
Shigeo Saitoh1, Hiroaki Watanabe2 and Chiharu Aoyama1, (1)Tokyo University of Marine Science and Technology, Tokyo, Japan, (2)Kyushu University, Department of Mechanical Engineering, Fukuoka, Japan
 
Relation between Methane Gushing Points and Methane Plumes Using Quantitative Echosounder (539957)
Nidomu Maeda and Chiharu Aoyama, Tokyo University of Marine Science and Technology, Tokyo, Japan
 
Periodical Investigations of Methane Plumes on Research Vessels with ROV onboard, sponsored and operated individually by a private company (543535)
Chiharu Aoyama1, Daiki Aoyama2, Shigeharu Aoyama3 and Mina Haworth2, (1)Tokyo University of Marine Science and Technology, Tokyo, Japan, (2)Japan's Independent Institute, Tokyo, Japan, (3)Senate of Japan, Tokyo,, Japan
 
Assessing the Environmental Impacts of Dissolved and Gaseous Methane Emissions from Seeps Along Continental Margins (Invited) (562782)
Miriam Kastner, Scripps Institution of Oceanography, La Jolla, CA, United States and Evan A Solomon, Univ Washington, Seattle, WA, United States
 
Petrographic and geochemical characterization of the hydrocarbon-derived authigenic low-magnesium calcite at brine seeps in the Gulf of Mexico (569855)
Dong Feng, Shanghai Ocean University, Lingang, China, Huiwen Huang, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Shanggui Gong, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, LA, China and Niu Li, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
 
Change of phase underwater due to change in the depth of methane hydrate particles (570521)
Kazuki Matsui and Chiharu Aoyama, Tokyo University of Marine Science and Technology, Tokyo, Japan
 
Comparison of ikaites and methane derived authigenic carbonate nodules recovered from a mound structure in the Sea of Japan (570973)
Akihiro Hiruta, Meiji University, Gas Hydrate Laboratory, Kawasaki, Japan and Ryo Matsumoto, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan
 
Production of Board Game “Search for the Burning Ice” Methane Hydrate Hunter (572548)
Mina Haworth1, Daiki Aoyama1 and Chiharu Aoyama2, (1)Japan's Independent Institute, Tokyo, Japan, (2)Tokyo University of Marine Science and Technology, Tokyo, Japan
 
Long-Term Monitoring of Gas Emissions at Southern Hydrate Ridge (574132)
Yann Marcon and Gerhard Bohrmann, University of Bremen, MARUM, Bremen, Germany
 
Methane Seeps in the Red Sea (586256)
Joshua Smith1, Marco Terzariol1, Anders Røstad2, Clara Modenesi1, Marisol Salvá-Ramírez1, Xunchang Fei3, Carlos M Duarte2 and Carlos Santamarina1, (1)King Abdullah University of Science and Technology, Ali I. Al-Naimi Petroleum Engineering Research Center, Thuwal, Saudi Arabia, (2)King Abdullah University of Science and Technology, Red Sea Research Center, Thuwal, Saudi Arabia, (3)Nanyang Technological University, Civil and Environmental Engineering, Singapore, Singapore
 
Hunting Hydrocarbon Seeps Around the World – Linking Industry and Academia (589449)
Christina Maschmeyer1, Jeffrey Beeson2, Garrett Alan Mitchell3, Jamshid Jim Gharib1 and Stephanie Ingle1, (1)Fugro, Houston, TX, United States, (2)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (3)Fugro USA Marine, Inc, Houston, TX, United States
 
The atmospheric flux of methane from a North Sea gas field includes a non-seep surface water methane source (592746)
John Pohlman1, Carolyn D Ruppel2, Michael Casso3, Tim Weiss4 and Jens Greinert4, (1)USGS Coastal and Marine Science Center Woods Hole, Woods Hole, MA, United States, (2)US Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA, United States, (3)U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA, United States, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Geosystems - DeepSea Monitoring, Kiel, Germany
 
Persistent downward flow of seawater beneath Beggiatoa mat communities at Hydrate Ridge – mechanisms and biogeochemical implications (596123)
Theresa L Whorley, University of Washington Seattle, School of Oceanography, Seattle, WA, United States, Evan A Solomon, Univ Washington, Seattle, WA, United States, Lauren Kowalski, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States and Romina Centurion, University of Washington, School of Oceanography, Seattle, WA, United States
 
Study on the effect of TBAB hydrate contents on soil strength using portable direct shear apparatus (602389)
Yutaka Gonda, Niigata, Niigata, Japan
 
Membrane Structure for Methane Hydrate Recovery: Adhesion of Membrane Film and Methane Hydrate (633330)
Yasushi Kawagishi1, Chiharu Aoyama2, Hiroaki Watanabe3 and Tatsuya Yoshino1, (1)Organization Not Listed, Washington, DC, United States, (2)Tokyo University of Marine Science and Technology, Tokyo, Japan, (3)Kyushu University, Department of Mechanical Engineering, Fukuoka, Japan
 
Research relating to use membrane structure in collecting methane hydrate: Conical shape membrane structure for collecting purpose (634132)
Tatsuya Yoshino1, Chiharu Aoyama2, Hiroaki Watanabe3 and Yasushi Kawagishi1, (1)Organization Not Listed, Washington, DC, United States, (2)Tokyo University of Marine Science and Technology, Tokyo, Japan, (3)Kyushu University, Department of Mechanical Engineering, Fukuoka, Japan
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