T52B:
Constructing Crust from the Backarc to the Forearc in the Izu-Bonin-Mariana (IBM) and Other Arc Systems II

Friday, 19 December 2014: 10:20 AM-12:20 PM
Chairs:  Mark K Reagan, University of Iowa, Iowa City, IA, United States, Yoshihiko Tamura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Carlos Garrido, IACT, Granada, Spain and Tomoaki Morishita, Kanazawa University, Kanazawa, Japan
Primary Conveners:  Mark K Reagan, University of Iowa, Iowa City, IA, United States
Co-conveners:  Yoshihiko Tamura, JAMSTEC, Yokosuka, Japan, Carlos J Garrido, IACT, Granada, Spain and Tomoaki Morishita, Kanazawa University, Kanazawa, Japan
OSPA Liaisons:  Mark K Reagan, University of Iowa, Iowa City, IA, United States

Abstracts Submitted to this Session:

10:20 AM
T52B-01
 
A tale of two arcs? Plate tectonics of the Izu-Bonin-Mariana (IBM) arc using subducted slab constraints
Jonny E Wu1, John Suppe1, Lu Renqi2 and Ravi V S Kanda2, (1)NTU National Taiwan University, Taipei, Taiwan, (2)Department of Geoscience, National Taiwan University, Taipei, Taiwan
10:35 AM
T52B-02
 
Crustal Construction Along the Eastern Lau Spreading Center: Mantle Water, Magmatic Differentiation, and a Compositionally Zoned Basin
Robert A Dunn1, Deborah E Eason1, Ryuta Arai2 and Fernando Martinez3, (1)University of Hawaii at Manoa, Geology and Geophysics, Honolulu, HI, United States, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)University of Hawaii at Manoa, HIGP, Honolulu, HI, United States
10:50 AM
T52B-03
 
Hydrous lithosphere and diffuse crustal accretion and tectonics in the southern Mariana margin: a possible analog for subduction zone infancy and ophiolites
Fernando Martinez1, Patricia B Fryer1, Jonathan D Sleeper1, Robert J Stern2, Katherine A Kelley3, Yasuhiko Ohara4,5 and Julia M Ribeiro2, (1)Univ of Hawaii-SOEST/HIGP, Honolulu, HI, United States, (2)University of Texas at Dallas, Richardson, TX, United States, (3)University of Rhode Island, Kingston, RI, United States, (4)Hydrographic and Oceanographic Department of Japan, Tokyo 135-0064, Japan, (5)Japan Agency for Marine-Earth Science and Technoloty, Yokosuka 237-0061, Japan
11:05 AM
T52B-04
 
The Oman Ophiolite as a Record of Subduction Initiation
C. Johan Lissenberg, Cardiff University, School of Earth & Ocean Sciences, Cardiff, United Kingdom and Christopher J MacLeod, Cardiff University, School of Earth & Ocean Sciences, Cardiff, CF24, United Kingdom
11:20 AM
T52B-05
 
Arc-arc collision ongoing in the southernmost part of the Kuril trench region revealed from integrated analyses of the 1998-2000 Hokkaido Transect seismic data
Takaya Iwasaki1, Noriko Tsumura2, Tanio Ito3, Hiroshi Sato1, Eiji Kurashimo1, Naoshi Hirata1, Kazunori Arita4, Katsumi Noda5, Akira Fujiwara5, Susumu Abe5, Shinsuke Kikuchi6 and Kazuko Suzuki7, (1)Earthquake Research Institute, the University of Tokyo, Tokyo, Japan, (2)Graduate School of Science, Chiba University, Chiba, Japan, (3)Teikyo Heisei University, Tokyo, Japan, (4)The Hokkaido University Museum, Hokkaido University, Sapporo, Japan, (5)JGI, Inc., Tokyo, Japan, (6)JAPEX Japan Petroleum Exploration, Tokyo, Japan, (7)Schlumberger Ltd., Tokyo, Japan
11:35 AM
T52B-06
 
Crustal construction along arc-backarc transition zone in the Japan Sea and implications for seismogenic processes
Shuichi Kodaira1, Tetsuo No1, Takeshi Sato1 and Hiroshi Sato2, (1)R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (2)Earthquake Research Institute, University of Tokyo, Tokyo, Japan
11:50 AM
T52B-07
 
Back-arc Mantle Evolution inferred from Peridotite Xenotlishs from the Japan Sea
Tomoaki Morishita1, Yuji Ichiyama2, Akihiro Tamura1 and Shoji Arai1,2, (1)Kanazawa University, Kanazawa, Japan, (2)Japan Agency for Marine Science-Earth Science and Technology, Kochi, Japan
12:05 PM
T52B-08
 
New constraints for the tectonic development of the western Pacific margin since the Mesozoic: comprehensive SHRIMP zircon U-Pb dating of the Philippine ophiolite belts
Kenichiro Tani1, Jillian Aira Sibal Gabo2, Kenji Horie3, Osamu Ishizuka4, Jenielyn Padrones5, Betchaida D. Payot6, Maria Luisa G Tejada7, Decibel V. Faustino-Eslava8, Akira Imai5, Shoji Arai9, Graciano P Yumul Jr10 and Carla B. Dimalanta6, (1)National Museum of Nature and Science, Ibaraki, Japan, (2)Kyushu University, Fukuoka-Shi, Japan, (3)NIPR National Institute of Polar Research, Tokyo, Japan, (4)Geological Survey of Japan, Tsukuba, Ibaraki, Japan, (5)Akita University, Akita, Japan, (6)National Institute of Geological Sciences, University of the Philippines, Quezon City, Philippines, (7)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (8)University of the Philippines Los Baños, Laguna, Philippines, (9)Kanazawa University, Kanagawa, Japan, (10)University of the Philippines, Quezon City, Philippines
 
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