T32A:
Evolution of Marginal Basins: Rifting Dynamics, Mid-Ocean Ridge Evolution, and Oceanic Circulation

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Session ID#: 31502

Session Description:
Marginal basins develop at the frontier between continents and oceans, or within oceanic plates, through the tearing of continental lithosphere or volcanic arc terrains. The South China Sea is an excellent natural laboratory to study the processes creating these miniature oceans at the junction of major plates: lithospheric stretching, mantle melting, spreading and oceanic circulation. It has recently witnessed extensive geophysical and oceanographic surveys, as well as IODP expeditions (349, 367 and 368). This special session will be the opportunity to present results and enhance collaborations about these investigations in different marginal basins, and students are encouraged to present their work. We welcome contributions showing how marginal basins evolved and how the sedimentation and ocean circulation responded to tectonic evolution. The presentations may focus on geological, geodynamic, sedimentary or oceanography processes. We especially welcome comprehensive or comparative researches in other Pacific or Mediterranean marginal basins or on other continental margins.
Primary Convener:  Anne Briais, CNRS GET Géosciences Environnement Toulouse, Toulouse, France
Conveners:  Zhifei Liu, Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, Zhen Sun, South China Sea Institute of Oceanology, Chinese Academy of Sciences, CAS Key Laboratory of Ocean and Marginal Sea Geology, Guangzhou, China and Claudia Lupi, University of Pavia, Department of Earth and Environmental Sciences, Pavia, Italy
Chairs:  Anne Briais, Observatory Midi-Pyrenees, Toulouse, France and Zhen Sun, Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
OSPA Liaison:  Anne Briais, Observatory Midi-Pyrenees, Toulouse, France

Cross-Listed:
  • OS - Ocean Sciences
Index Terms:

3036 Ocean drilling [MARINE GEOLOGY AND GEOPHYSICS]
3040 Plate tectonics [MARINE GEOLOGY AND GEOPHYSICS]
4243 Marginal and semi-enclosed seas [OCEANOGRAPHY: GENERAL]
8105 Continental margins: divergent [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Sedimentary and Paleoceanographic Responses to the South China Sea Basin Evolution (Invited) (265748)
Zhimin Jian1, Zhifei Liu1, Haiyan Jin1, Hans Christian Larsen2, Carlos A Alvarez Zarikian3, Joann M Stock4, Zhen Sun5, Adam Klaus3 and the IODP Expeditions 367 and 368 Scientists, (1)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (2)Geological Survey of Denmark and Greenland, Köbenhavn, Denmark, (3)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (4)California Institute of Technology, Pasadena, CA, United States, (5)Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
The Rifting to Spreading Evolution of Marginal Basins (Invited) (213492)
Brian Taylor, University of Hawaii at Manoa, Honolulu, HI, United States
Proto-South China Sea plate tectonics using subducted slab constraints from tomography (264316)
Jonny Wu, University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States and John Suppe, University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States
Post-rift Stage Fault Analysis Around Nansha Block, Southern South China Sea (265743)
Yu-Chun Chang1, Che-Chuan Lin1, Ho-Han Hsu2, Char-Shine Liu1, Sung-Ping Chang3 and Jih-Hsin Chang4, (1)IONTU Institute of Oceanography National Taiwan University, Taipei, Taiwan, (2)Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, (3)Ecole Normale Supérieure Paris, UMR 8538 - Laboratoire de Géologie, Paris, France, (4)National Taiwan University, Institute of Oceanography, Taipei, Taiwan
Three-dimensional Seismic Survey of the Continental-Ocean Transition Zone of the Northern South China Sea (216829)
Minghui Zhao1, Qiang Wang2, Jean-Claude Sibuet3, Longtao Sun2, Zhen Sun4 and Xuelin Qiu2, (1)Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China, (2)SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (3)Ifremer Centre de Brest, 29280 Plouzané, France and 44 rue du Cloitre, 29280 Plouzané, France, Plouzané, France, (4)South China Sea Institute of Oceanology, Chinese Academy of Sciences, CAS Key Laboratory of Ocean and Marginal Sea Geology, Guangzhou, China
Geochemistry of South China Sea MORB and implications for deep geodynamics (237831)
Xun Yu1, Zhifei Liu2, Lihui Chen3 and Gang Zeng3, (1)State Key Laboratory of Marine Geology, Tongji University, Shanghai, China, (2)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (3)Nanjing University, Nanjing, China
XRF Core Scanning of Igneous Rocks: a Case Study of IODP Expeditions 367/368 Lava Flows, South China Sea (301048)
Tobias Walter Höfig1, Brian LeVay2, Joann M Stock3, Zhen Sun4, Adam Klaus2, Zhimin Jian5, Hans Christian Larsen6, Carlos A Alvarez Zarikian1 and the IODP Expeditions 367 and 368 Scientists, (1)Texas A&M University, International Ocean Discovery Program, College Station, United States, (2)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)South China Sea Institute of Oceanology, Chinese Academy of Sciences, CAS Key Laboratory of Ocean and Marginal Sea Geology, Guangzhou, China, (5)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (6)The Geological Survey of Denmark and Greenland, Copenhagen, Denmark

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