| Short title | Ocean Floor Geoscience | 
	
		| Oral presentation Date/Room/Chair
 | May 22 PM1 (14:15 - 16:00) | 106 | Izumi Sakamoto 
			/ Chie Honsho | 
	
		| May 22 PM2 (16:15 - 18:00) | 106 | Yasushi Harada 
			/ Naoto Hirano | 
	
		| May 23 AM1 (09:00 - 10:45) | 106 | Mariko Sato 
			/ Motoyuki Kido | 
	
		| Poster presentation Date/Room
 | May 22 (Core Time 18:15 - 19:30) | Convention Hall | 
	
		| Contact | Kyoko Okino | 
	
		| Email | okino@aori.u-tokyo.ac.jp | 
	
		| Convener | Kyoko Okino 
			/ Keiichi Tadokoro 
			/ Osamu Ishizuka 
			/ Tomohiro Toki 
			/ Narumi Takahashi | 
	
		| Scope | Ocean Floor Geoscience session covers a broad range of research on seafloor such as mid-ocean ridge process, subduction dynamics, arc magmatism, hot spot and LIPs, crustal movement and structure etc. Every field of researches and every approaches are welcomed. The session aims to encourage discussion among scientists from different study fields and to integrate our understanding of ocean floor. | 
	
		| Notes | Bring your own computer for presentation and check it before the session. | 
	
		| Time | Presentation No | Title | Author | Presenter | Abstract | 
	
		| Oral Presentation   May 22 PM1 (14:15-16:00) 106                              to the top | 
	
		| 14:15 - 14:30 | SCG67-01 | Seismic structure and seismicity at the southern Mariana Trough with hydrothermal activities | Toshinori Sato Mariko Mizuno
 Hiroyoshi Takata
 other
 | Toshinori Sato | English | 
	
		| 14:30 - 14:45 | SCG67-02 | Magnetic Structure of Back-arc Spreading Axis with Hydrothermal Vents; the Southern Mariana Trough | Masakazu Fujii Kyoko Okino
 Chie Honsho
 other
 | Masakazu Fujii | English | 
	
		| 14:45 - 15:00 | SCG67-03 | Volcanic features and volcanic massive sulfide deposit of Myojinnsyo caldera, Izu-Ogasawara Arc. | Izumi Sakamoto Ryuichi Shitahaku
 Masatoshi Yagi
 other
 | Izumi Sakamoto | English | 
	
		| 15:00 - 15:15 | SCG67-04 | Across-arc geochemical variation of felsic rocks dredged from the Myojin Seamount and the Myojin Rift, Izu-Bonin arc | Takanori Yoshida OKAMURA, Statoshi
 SAKAMOTO, Izumi
 other
 | Takanori Yoshida | English | 
	
		| 15:15 - 15:30 | SCG67-05 | Mapping hydrothermal sites in the Bayonnaise knoll caldera using acoustic sonars with an autonomous underwater vehicle | Chie Honsho URA, Tamaki
 ASADA, Akira
 other
 | Chie Honsho | English | 
	
		| 15:30 - 15:45 | SCG67-06 | The structure of chimney at iron-silica rich hydrothermal environment in shallow marine, Satsuma Iwo-Jima, Kikai caldera | Takashi Kuratomi KIYOKAWA, Syoichi
 IKEHARA, Minoru
 other
 | Takashi Kuratomi | English | 
	
		| 15:45 - 16:00 | 3-min talk in an oral session@(SCG67-P01/SCG67-P02/SCG67-P03/SCG67-P04/SCG67-P05) | 
	
		| Oral Presentation   May 22 PM2 (16:15-18:00) 106                              to the top | 
	
		| 16:15 - 16:30 | SCG67-07 | The subducting effect and characteristics of crustal structure in the east side of Shikoku Basin obtained by seismic ref | Mikiya Yamashita Shuichi Kodaira
 Narumi Takahashi
 other
 | Mikiya Yamashita | English | 
	
		| 16:30 - 16:45 | SCG67-08 | Seismic structure of the Kita-Daito Basin and Minami-Daito Basin in the northwestern Philippine Sea plate | Azusa Nishizawa Kentaro Kaneda
 Mitsuhiro Oikawa
 | Azusa Nishizawa | English | 
	
		| 16:45 - 17:00 | SCG67-09 | Aseismic deep subduction of the Philippine Sea plate | Dapeng Zhao Zhouchuan Huang
 Takahiro Yanada
 other
 | Dapeng Zhao | English | 
	
		| 17:00 - 17:15 | SCG67-10 | Precise visualization of global plate motions | Shohei Aramaki Tadayoshi Kato
 Yasushi Harada
 | Yasushi Harada | English | 
	
		| 17:15 - 17:30 | SCG67-11 | Exploring submarine lava fields in the French Polynesian region | Naoto Hirano Masao Nakanishi
 Natsue Abe
 other
 | Naoto Hirano | English | 
	
		| 17:30 - 17:45 | SCG67-12 | Experimental constraint on magma genesis for petit-spot in the northwestern Pacific: the first step | Shiki Machida Tetsu Kogiso
 Naoto Hirano
 | Shiki Machida | English | 
	
		| 17:45 - 18:00 | 3-min talk in an oral session@(SCG67-P06/SCG67-P07/SCG67-P08/SCG67-P09/SCG67-P10) | 
	
		| Oral Presentation   May 23 AM1 (09:00-10:45) 106                              to the top | 
	
		| 09:00 - 09:15 | SCG67-13 | Development of an ultra-deep seafloor acoustic ranging system | Yukihito Osada Motoyuki Kido
 Yoshihiro Ito
 other
 | Yukihito Osada | English | 
	
		| 09:15 - 09:30 | SCG67-14 | Postseismic seafloor movements associated with the 2011 Tohoku Earthquake detected by GPS/acoustic geodetic observation | Shun-ichi Watanabe Mariko Sato
 Tadashi Ishikawa
 other
 | Shun-ichi Watanabe | English | 
	
		| 09:30 - 09:45 | SCG67-15 | Development of GPS/acoustic survey sites along Japan Trench and getting started on their first measurement | Motoyuki Kido Yukihito Osada
 Jumpei Yamamoto
 other
 | Motoyuki Kido | English | 
	
		| 09:45 - 10:00 | SCG67-16 | Current status and future prospect of GPS/acoustic seafloor geodetic observation by Japan Coast Guard | Mariko Sato Naoto Ujihara
 Shun-ichi Watanabe
 other
 | Mariko Sato | English | 
	
		| 10:00 - 10:15 | SCG67-17 | New buoy observation system for tsunami and crustal deformation for strong ocean current | Narumi Takahashi ISHIHARA, Yasuhisa
 OCHI, Hiroshi
 other
 | Narumi Takahashi | English | 
	
		| 10:15 - 10:30 | SCG67-18 | The first observation of a newly developed underwater gravimeter by using autonomous underwater vehicle | Masanao Shinohara Tomoaki Yamada
 Toshihiko Kanazawa
 other
 | Masanao Shinohara | English | 
	
		| 10:30 - 10:45 | 3-min talk in an oral session@(SCG67-P11/SCG67-P12/SCG67-P13/SCG67-P14/SCG67-P15) | 
	
		| Presentation No | Title | Author | Presenter | Abstract | 
	
		| Poster Presentation   May 22  Core Time (18:15-19:30) Convention Hall                    to the top | 
	
		| SCG67-P01 | Acoustically transparent deposits possibly originated from 7300 BP Kikai Koya PDC | Fumihiko Ikegami Shoichi Kiyokawa
 hisashi Oiwane
 other
 | Fumihiko Ikegami | English | 
	
		| SCG67-P02 | Geochemical variation of backarc basin basalts and magma genesis in the Shikoku Basin | Satoru Haraguchi Teruaki Ishii
 Shiki Machida
 | Satoru Haraguchi | English | 
	
		| SCG67-P03 | New GANSEKI: Major System Revision and Improved Usability | Takayuki Tomiyama Yuji Ichiyama
 HORIKAWA, Hiroki
 other
 | Takayuki Tomiyama | English | 
	
		| SCG67-P04 | Development of observation method for seafloor hydrothermal flow based on acoustic image | Masashi Mochizuki TAMURA, Hajimu
 KINOSHITA, Masataka
 other
 | Masashi Mochizuki | English | 
	
		| SCG67-P05 | Availability to the ocean floor geoscience of the deep-sea videos | Tomoaki Kitayama TANAKA, Katsuhiko
 OGIDO, Moritaka
 other
 | Tomoaki Kitayama | English | 
	
		| SCG67-P06 | The three-dimensional conductivity structure beneath the Philippine Sea and the western Pacific Ocean | Noriko Tada Kiyoshi Baba
 Hisashi Utada
 | Noriko Tada | English | 
	
		| SCG67-P07 | Origin of the petit-spot melt suggested from electrical conductivity structure | Kiyoshi Baba Natsue Abe
 Naoto Hirano
 other
 | Kiyoshi Baba | English | 
	
		| SCG67-P08 | Using STCM data, relationship between spreading rate and magnetic boundary strike in mid ocean ridge | Yukitaka Satoh Takeshi Matsumoto
 Yoshifumi Nogi
 | Yukitaka Satoh | English | 
	
		| SCG67-P09 | Active topographic features on the oceanward plate of the Japan Trench near the hypocenter region of the 2011 Tohoku Ear | Masao Nakanishi | Masao Nakanishi | English | 
	
		| SCG67-P10 | Seafloor mapping of the 1998 Papua New Guinea earthquake and tsunami source area | Takeshi Matsumoto | Takeshi Matsumoto | English | 
	
		| SCG67-P11 | Study for observation and analysis method in urgent seafloor geodetic observation | Naoto Ujihara Mariko Sato
 Shun-ichi Watanabe
 other
 | Naoto Ujihara | English | 
	
		| SCG67-P12 | Development of a new method  for GPS/Acoustic seafloor observation using multi-buoy system | Haruka Mukaiyama Ryoya Ikuta
 Keiichi Tadokoro
 other
 | Haruka Mukaiyama | English | 
	
		| SCG67-P13 | Gamma-ray fluctuation observed on deep seafloor off Hatsushima Island in Sagami Bay after the 2011 Tohoku Earthquake | Ryoichi Iwase Ichiro Takahashi
 | Ryoichi Iwase | English | 
	
		| SCG67-P14 | The phase velocity and arrival direction of infragravity waves observed by DONET | Yoko Tono Kiwamu Nishida
 Yoshio Fukao
 other
 | Yoko Tono | English | 
	
		| SCG67-P15 | Bouguer gravity anomaly of Japan's adjacent seas | Yukari Fujioka KANEDA, Kentaro
 OIKAWA, Mitsuhiro
 other
 | Yukari Fujioka | English | 
	
		| SCG67-P16 | Characteristics of Hf isotopic composition of basalts from northwestern part of the West Philippine Basin | Nao Goeku Ryuichi Shinjo
 | Nao Goeku | English | 
	
		| SCG67-P17 | Nd and Hf isotopic compositions of the Oman ophiolite extrusive rocks | Anzu Ikei Ryuichi Shinjo
 | Anzu Ikei | English |