OS53C:
Gas Hydrate Environments: Genesis, Stability, and Influence on Seafloor Morphology and the Biosphere II Posters

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Session ID#: 23609

Session Description:
A growing body of research has demonstrated that the accumulation of gas hydrate along continental margins is a common occurrence; however, relatively little is known about the environmental dynamics associated with such deposits including: the types of hydrate growth, gas and fluid migration within sediment and hydrate, the evolution of hydrates and their influence on seafloor morphology, authigenic mineralization associated with hydrate growth and decomposition, the impact of hydrates on slope stability, and the development of chemosynthetic communities in such environments. This session welcomes reports resulting from geochemical, biological and geophysical field programs, as well as lab modelling, and geotechnical research on sea floor stability. The aim is to bring together various investigative approaches and to compare gas hydrate environments and their evolution through geological history. We solicit studies using novel methods and approaches to bring new perspectives on the formation and decomposition of gas hydrate on the sea floor.
Primary Convener:  Glen Tritch Snyder, Meiji University, Gas Hydrate Laboratory, Kawasaki, Japan
Conveners:  Saulwood Lin, NTU National Taiwan University, Institute of Oceanography, Taipei, Taiwan and Ryo Matsumoto, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan
Chairs:  Glen Tritch Snyder, Meiji University, Gas Hydrate Laboratory, Kawasaki, Japan, Ryo Matsumoto, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan and Saulwood Lin, NTU National Taiwan University, Institute of Oceanography, Taipei, Taiwan
OSPA Liaison:  Ryo Matsumoto, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan

Cross-Listed:
  • B - Biogeosciences
Index Terms:

3004 Gas and hydrate systems [MARINE GEOLOGY AND GEOPHYSICS]
4219 Continental shelf and slope processes [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]

Abstracts Submitted to this Session:

Enhancement of the surface methane hydrate-bearing layer based on the specific microorganisms form deep seabed sediment in Japan Sea. (264956)
Toshiro Hata, Toyama Prefectural University, Imizu, Japan, Jun Yoneda, AIST - National Institute of Advanced Industrial Science and Technology, Sapporo, Japan and Koji Yamamoto, JOGMEC, Chiba-shi, Japan
Methane fluxes and inventories in the accretionary prism of southwestern Taiwan (265846)
Li-Hung Lin1, Nai-Chen Chen2, Tsanyao F Yang1, Wei-Li Hong3, Hsuan-Wen Chen1, Hsiao-Chi Chen1, Ching-Yi Hu1, Yu-Chun Huang1, Saulwood Lin4, Chih-Chieh Su1, Wei-Zhi Liao1, Chih-Hsien Sun5, Pei-Ling Wang6, Tao Yang7, Shao-yong Jiang8, Char-Shine Liu1, Yunshuen Wang9 and San-Hsiung Chung9, (1)National Taiwan University, Taipei, Taiwan, (2)Department of Geosciences, National Taiwan University, Taipei, Taiwan, (3)Oregon State University, Corvallis, OR, United States, (4)IONTU Institute of Oceanography National Taiwan University, Taipei, Taiwan, (5)CPC Corporation Taiwan, Miaoli, Taiwan, (6)Institute of Oceanography, National Taiwan University, Taipei, Taiwan, (7)Nanjing University, Department of Earth Sciences, Nanjing, China, (8)Nanjing University, Nanjing, Taiwan, (9)Central Geological Survey, Taipei, Taiwan
Contribution of deep sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from ∆14C and δ13C isotopes (222607)
Dong Feng, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Jörn Peckmann, Institute of Geology, Universität Hamburg, Hamburg, Germany, Yongbo Peng, Louisiana State University, Department of Geology & Geophysics, Baton Rouge, LA, United States, Qianyong Liang, Guangzhou Marine Geological Survey, MLR Key Laboratory of Marine Mineral Resources, Guangzhou, China, Harry H Roberts, Louisiana State University, Department of Oceanography & Coastal Sciences, Baton Rouge, United States and Duofu Chen, Shanghai Ocean University, Shanghai, China
Quantitative estimation of massive gas hydrate in gas chimney structures, the eastern margin of Japan Sea, from the physical property anomalies obtained by LWD. (222952)
Manabu Tanahashi, Meiji University, Gas Hydrate Research Laboratory, Kawasaki, Japan, Sumito Morita, Geological Survey of Japan, AIST, Tsukuba, Ibaraki, Japan and Ryo Matsumoto, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan
Acoustic and gravity features of mud volcanoes along the seaward part of the Kumano forearc basin, Nankai region, central Japan (248433)
Miho Asada, JAMSTEC, Yokosuka, Japan
Can sediments at hydrocarbon seep sites represent a source for marine bioavailable iron? — A case study from the South China Sea (250309)
Niu Li, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Dong Feng, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Beijing, China and Duofu Chen, Shanghai Ocean University, Shanghai, China
A SIMS Study of Sulfur Isotopes of Accessory Pyrites Associated with Barites from Methane Cold Seeps in the Gulf of Mexico (255110)
Erica Christina Morelli, University of Alabama, Tuscaloosa, AL, United States and Paul Aharon, Univ Alabama, Tuscaloosa, AL, United States
High-Resolution Seafloor Observations of an Active Mud Volcano Offshore SW Taiwan - Results of a Repeated Survey after Four Years (264694)
Ho-Han Hsu1,2, Tzu-Ting Chen1, Char-Shine Liu1, Chih-Chieh Su3, Charles K Paull4, David W Caress4, Roberto Gwiazda5 and Yu-Huang Chen1, (1)Institute of Oceanography, National Taiwan University, Taipei, Taiwan, (2)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (3)National Taiwan University, Institute of Oceanography, Taipei, Taiwan, (4)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (5)Monterey Bay Aquarium Research Institute, Moss Landing, United States
Microbial diversity in methane hydrate-bearing deep marine sediments core preserved in the original pressure. (247390)
Yurika Takahashi, Toshiro Hata and Hiromi Nishida, Toyama Prefectural University, Imizu, Japan
Comparison with Offshore and Onshore Mud Volcanoes in the Southwestern Taiwan (265651)
Yu-Huang Chen1, Chih-Chieh Su2, Tzu-Ting Chen1, Char-Shine Liu1, Charles K Paull3, David W Caress3, Roberto Gwiazda4, Eve M Lundsten3 and Ho-Han Hsu5, (1)Institute of Oceanography, National Taiwan University, Taipei, Taiwan, (2)National Taiwan University, Institute of Oceanography, Taipei, Taiwan, (3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (4)Monterey Bay Aquarium Res Inst, Moss Landing, CA, United States, (5)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan
Matching Deep Tow Camera study and Sea Floor geochemical characterization of gas migration at the Tainan Ridge, South China Sea (266548)
Lan-Feng Fan1, Kai-Li Lien1, I-Chih Hsieh2 and Saulwood Lin1, (1)IONTU Institute of Oceanography National Taiwan University, Taipei, Taiwan, (2)National Taiwan University, Institute of Oceanography, Taipei, Taiwan
Probing aerobic methanotrophs associated with seepages in offshore southwestern Taiwan (267803)
Pei-Ling Wang1, Hsi-Ling Chou2, Pin-Chen Liu1, Nai-Chen Chen2 and Li-Hung Lin2, (1)Institute of Oceanography, National Taiwan University, Taipei, Taiwan, (2)Department of Geosciences, National Taiwan University, Taipei, Taiwan
Sulfur Isotope Fractionation in Marine Pore waters from the Offshore Southwestern Taiwan (277785)
Tsai-Luen Yu1, Nai-Chen Chen2, Bo-Shian Wang3, Li-Hung Lin2, Tsanyao F Yang4, Yue-Gau Chen5 and Chun-Yuan Huang6, (1)National Taiwan University, Research Center for Future Earth, Taipei, Taiwan, (2)Department of Geosciences, National Taiwan University, Taipei, Taiwan, (3)Taiwan Ocean Research Institute, National Applied Laboratories, Kaohsiung, Taiwan, (4)NTU National Taiwan University, Taipei, Taiwan, (5)Department of Geoscience, National Taiwan University, Taipei, Taiwan, (6)National Taiwan University, Geosciences, Taipei, Taiwan
Microcrystalline dolomite within massive Japan Sea methane hydrate: origin and development ascertained by inclusions within inclusions. (227194)
Glen Tritch Snyder1, Yoshihiro Kakizaki2, Ryo Matsumoto3, Yohey Suzuki4, Naoto Takahata5, Yuji Sano6, Kentaro Tanaka7, Hitoshi Tomaru8, Takumi Imajo9 and Aya Iguchi8, (1)Meiji University, Gas Hydrate Laboratory, Kawasaki, Japan, (2)Meiji University, Kawasaki, Japan, (3)Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan, (4)The University of Tokyo, Dept. Earth and Planetary Sciences, Tokyo, Japan, (5)Atmosphere and Ocean Research Institute University of Tokyo, Kashiwa, Japan, (6)Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan, (7)Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan, (8)Chiba University, Chiba, Japan, (9)Tokyo University of Marine Science and Technology, School of Marine Resources and Environment, Tokyo, Japan
Age of Sulfate Methane Transition Zone Determined by Modelling Barium Sulfate Growth (268011)
Saulwood Lin1, Wei-Cheng Wang2, Kai-Li Lien1, Chih-Chun Liu2 and Lan-Feng Fan1, (1)IONTU Institute of Oceanography National Taiwan University, Taipei, Taiwan, (2)National Taiwan University, Institute of Oceanography, Taipei, Taiwan

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