T11C:
NW Pacific Marginal Basins: Geodynamics and Hazard I Posters

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Session ID#: 12272

Session Description:
The boundary between easternmost Eurasia and and NW North America with the NW Pacific Ocean is marked by a series of marginal basins such as the Aleutian Basin, the Komandorsky Basin, the Kurile Basin, and the marginal basin complex that lies between Japan, Korea, and mainland Asia. These all formed as backarc basins during Cenozoic time, but it is unknown whether they formed by similar or different mechanisms (backarc basins vs. trapped Pacific seafloor; continental rifting vs. seafloor spreading).  Understanding how these basins formed is further complicated because none are now actively opening and all contain thick sediments. They pose important geodynamic problems but because some of these basins lie near regions with rapidly developing economies and present increasingly significant natural hazards such as earthquakes and tsunamis. This session will foster broad discussion and stimulate joint efforts to study and better understand these marginal basins and the risks these pose.
Primary Convener:  Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States
Conveners:  Jun-Ichi Kimura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics (IMG), Kanagawa, Japan, Boris Baranov, Russian Academy of Sciences, Institute of Oceanology, Moscow, Russia and Sang-Mook Lee, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan; Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South)
Chairs:  Jun-Ichi Kimura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics (IMG), Kanagawa, Japan and Sang-Mook Lee, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan; Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South)
OSPA Liaison:  Jun-Ichi Kimura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics (IMG), Kanagawa, Japan

Cross-Listed:
  • NH - Natural Hazards
  • OS - Ocean Sciences
  • SI - Societal Impacts and Policy Sciences
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1031 Subduction zone processes [GEOCHEMISTRY]
3001 Back-arc basin processes [MARINE GEOLOGY AND GEOPHYSICS]
8104 Continental margins: convergent [TECTONOPHYSICS]
9355 Pacific Ocean [GEOGRAPHIC LOCATION]

Abstracts Submitted to this Session:

The evolution of the Japan Sea and the slab subductions of Philippine Sea and Pacific plates (143424)
Mengxue Liu1, Yanan Shi1, Shaopo Wang2 and Dongping Wei1, (1)UCAS University of Chinese Academy of Sciences, Beijing, China, (2)Key Laboratory of Computational Geodynamics, College of Earth and planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
Some fundamental questions about the evolution of the Sea of Japan back-arc (180855)
Anne Van Horne, University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States; Earthquake Research Institute, The University of Toyko, Tokyo, Japan, Hiroshi Sato, University of Tokyo, Bunkyo-ku, Japan and Tatsuya Ishiyama, Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Japan Sea back-arc basin oceanic crust formed by high-temperature adiabatic melting of a hydrous mantle (117616)
Jun-Ichi Kimura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Petrogenetic Evolution of Basaltic Volcanism within the Tertiary Basins of Southeastern Korea and the Opening of the East Sea (Sea of Japan) (121495)
Sung Hi Choi, Chungnam National University, Department of Geological Sciences, Daejeon, Korea, Republic of (South), Hyun-Ok Choi, Chungnam National University, Daejeon, Korea, Republic of (South), Der-Chuen Lee, Academia Sinica, Taipei, Taiwan and Kang Hee Cheol, Pukyong National University, Earth Environmental Sciences, Busan, Korea, Republic of (South)
An new Insight into Asymmetric Development of Back-Arc Basin and Tecto-Magmatic Evidences from the Ulleung Basin, East Sea (Japan Sea) (173714)
Gi Bom Kim, Gyeongsang National University, Jinju, South Korea, Sang-Mook Lee, Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South) and Seok-Hoon Yoon, Jeju National University, Jeju, South Korea
Analysis of gravity anomalies in the Ulleung Basin (East Sea/Sea of Japan) and its implications for the architecture of rift-dominated back-arc basin (169787)
Yoon-Mi Kim, KIGAM Korea Institute of Geoscience and Mineral Resources, Petroleum & Marine Research Division, Daejeon, Korea, Republic of (South) and Sang-Mook Lee, Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South)
Formation process in the margin of the southern Japan Sea back-arc basin revealed from active-source seismic data (128274)
Takeshi Sato1, Tetsuo No2, Shuichi Kodaira3, Seiichi Miura1, Tatsuya Ishiyama4 and Hiroshi Sato4, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)JAMSTEC, Yokohama, Japan, (3)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Crustal and uppermost mantle S-wave velocity structure of Southern Yellow Sea and adjacent regions from gravity-seismic joint inversion and its implication for seismotectonics (117821)
Yanlin Wen1,2, Fei Chen3, Chun-Feng Li1,4, Haijiang Zhang3 and Haiying Yu2, (1)Tongji University, school of ocean and earth science, Shanghai, China, (2)Shanghai Siesmological Bureau, Shanghai, China, (3)University of Science and Technology of China, school of earth and space sciences, Hefei, China, (4)Zhejiang University, Ocean College,Institute of Marine Geology and Resources, Zhoushan, China
Tectonic evolution and depositional environment change of the Jeju and Socotra basins in the northern East China Sea (146008)
ChangSeong Koh, Jeju National University, Jeju, Korea, Republic of (South) and Seok-Hoon Yoon, Jeju National University, Jeju, South Korea
Crustal Structure of Lower Yangtze Block/zone Using TomoDD and Its Relation to Strong Earthquakes (145829)
Haiying Yu1, Yanlin Wen1, Haijiang Zhang2, Haijiang Zhang2 and Gao Lina3, (1)Shanghai Siesmological Bureau, Shanghai, China, (2)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (3)University of Science and Technology of China, Hefei, China
Seismic Structure of the Southern Okinawa Trough: Evidence of Symmetrical Rifting and Back-arc Volcanism (136797)
Ryuta Arai1, Shuichi Kodaira2, Yuka Kaiho3, Tsutomu Takahashi3, Seiichi Miura3 and YoshiYuki Kaneda1, (1)JAMSTEC, Yokohama, Japan, (2)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Exploring the Origin of the Bering Sea: Initial Results of Cruise SO249-2 (17th July – 13th August 2016) (133225)
Folkmar Hauff1, Reinhard Werner1, Maxim Portnyagin1, Boris Baranov2, Gene M Yogodzinski3, Roman E Botcharnikov4, Kaj Hoernle1, Sergei Silantyev5 and Paul van den Bogaard1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)Shirshov Institute of Oceanology, Moscow, Russia, (3)University of South Carolina, School of Earth-Ocean-Environment, Columbia, United States, (4)Johannes Gutenberg University of Mainz, Institut für Geowissenschaften, Mainz, Germany, (5)Vernadsky Institute of Geochemistry and Analytical Chemistry RAS, Moscow, Russia
Stratigraphic Complexity and Basement Structure in the Western Aleutian Basin of the Bering Sea (170618)
Ginger A Barth, USGS Pacific Coastal and Marine Science Center, Moffett Field, United States, Daniel S Scheirer, US Geological Survey, Menlo Park, CA, United States, David William Scholl, University of Alaska Fairbanks, Emeritus, Geology and Geophysics, Fairbanks, AK, United States and Matthew A Malkowski, USGS Pacific Coastal and Marine Science Center Santa Cruz, Santa Cruz, CA, United States
Seismic constraints on the crustal structure of the Bering shelf offshore southwestern Alaska (129647)
Rajesh Vayavur, Simon Fraser University, Earth Sciences, Burnaby, BC, Canada and Andrew J Calvert, Simon Fraser University, Department of Earth Sciences, Burnaby, BC, Canada
Quantitative Bathymetry of the Godzilla Megamullion and Chaotic Terrain region, Parece Vela Basin, Philippine Sea (153916)
Alex Barnard, University of Houston, Houston, TX, United States and Jonathan E Snow, University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States

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