| Short title | Gas hydrates | 
	
		| Oral presentation Date/Room/Chair
 | May 22 AM1 (09:00 - 10:45) | 202 | Takeshi Oi 
			/ Tomohiro Toki | 
	
		| May 22 AM2 (11:00 - 12:45) | 202 | Atsushi Tani 
			/ Hitoshi Tomaru | 
	
		| Poster presentation Date/Room
 | May 22 (Core Time 18:15 - 19:30) | Convention Hall | 
	
		| Contact | Hitoshi Tomaru | 
	
		| Email | tomaru@chiba-u.jp | 
	
		| Convener | Hitoshi Tomaru 
			/ Akihiro Hachikubo 
			/ Manabu Tanahashi | 
	
		| Scope | A number of gas hydrate researches have been conducted around Japan in recent years in order to understand the behavior and role of gas hydrate in the Earth's history and to assess the resource potential. This session aims to integrate results from resent researches to discuss the prospects for future researches. | 
	
		| Notes |  | 
	
		| Time | Presentation No | Title | Author | Presenter | Abstract | 
	
		| Oral Presentation   May 22 AM1 (09:00-10:45) 202                              to the top | 
	
		| 09:00 - 09:15 | MIS26-01 | Shallow gas hydrate exploration in Japan Sea: Past, Present and Future | Ryo Matsumoto | Ryo Matsumoto | English | 
	
		| 09:15 - 09:30 | MIS26-02 | Environment changes of the Japan Sea viewed from the water and TOC contents of the cored sediments off Joetsu City | Fujio Kumon Tasuku Urabe
 Manato Kuriyama
 other
 | Fujio Kumon | English | 
	
		| 09:30 - 09:45 | MIS26-03 | Sedimentary environments and pore properties of subseafloor sediments in the eastern margin of Japan Sea | Takashi Uchida Yuuki Kato
 Ryo Matsumoto
 | Takashi Uchida | English | 
	
		| 09:45 - 10:00 | MIS26-04 | Source of pore water and distribution of shallow gas hydrates inferred from dissolved Li isotopes | Hitoshi Tomaru Yoshiro Nishio
 Yasuyuki Muramatsu
 other
 | Hitoshi Tomaru | English | 
	
		| 10:00 - 10:15 | MIS26-05 | Unusual distribution of lycopane in the surface sediment from Japan Sea collected by the MD179 Cruise | Shigenori Ogihara | Shigenori Ogihara | English | 
	
		| 10:15 - 10:30 | MIS26-06 | Estimate of interval velocity of sediment between the seafloor and BSR in Joetsu Basin, eastern margin of the Japan Sea | Shusaku Goto Sumito Morita
 Manabu Tanahashi
 other
 | Shusaku Goto | English | 
	
		| 10:30 - 10:45 | MIS26-07 | The phase transformation of methane caused by pressure change during its rising from seepage | Chiharu Aoyama | Chiharu Aoyama | English | 
	
		| Oral Presentation   May 22 AM2 (11:00-12:45) 202                              to the top | 
	
		| 11:00 - 11:15 | MIS26-08 | Discovery of {i}Calyptogena ochotica{/i} (Scarlato, 1981) from Abashiri Bay, Eastern Hokkaido (Bivalvia: Vesicomyidae) | Hideki Numanami Takashi Okutani
 Shigeaki Kojima
 | Hideki Numanami | English | 
	
		| 11:15 - 11:30 | MIS26-09 | Distribution of the structure II gas hydrate in Lake Baikal | Akihiro Hachikubo Tsuyoshi Kotake
 Hirotoshi Sakagami
 other
 | Akihiro Hachikubo | English | 
	
		| 11:30 - 11:45 | MIS26-10 | Analysis of lipid biomarkers of methane hydrate bearing sediments from the eastern Nankai Trough by two dimensional GC | Miki Amo IZAWA, Ryuko
 SHINBO, Emiko
 other
 | Miki Amo | English | 
	
		| 11:45 - 12:00 | MIS26-11 | Distribution of hydrocarbons in sediment in Nankai accretionary prism off Kumano: IODP Expedition 338 preliminary result | Tomohiro Toki Harue Masuda
 Sebastian Hammerschmit
 other
 | Tomohiro Toki | English | 
	
		| 12:00 - 12:15 | MIS26-12 | Qualitative interpretation of CO2/CH4 Gas Exchange Field Trial in Alaska | Chitoshi Akasaka OHTSUKI, Satoshi
 YOSHIZAWA, Minoru
 | Chitoshi Akasaka | English | 
	
		| 12:15 - 12:30 | MIS26-13 | Estimation of decrease in global methane hydrate inventory associated with global warming | Akitomo Yamamoto Yasuhiro Yamanaka
 Ayako Abe-Ouchi
 other
 | Akitomo Yamamoto | English | 
	
		| 12:30 - 12:45 | 3-min talk in an oral session@(MIS26-P01/MIS26-P02/MIS26-P03/MIS26-P04/MIS26-P05) | 
	
		| Presentation No | Title | Author | Presenter | Abstract | 
	
		| Poster Presentation   May 22  Core Time (18:15-19:30) Convention Hall                    to the top | 
	
		| MIS26-P01 | Age models in two piston cores (MD179-3312 and 3304) off Joetsu in the southwestern part of the Japan Sea: based on the | Takeshi Oi | Takeshi Oi | English | 
	
		| MIS26-P02 | Depth distribution of trace elements in pore water collected from Japan Sea sediments associated with methane hydrate | Nobuaki Okabe Hiroya ANZAI
 Yasuyuki MURAMATSU
 other
 | Nobuaki Okabe | English | 
	
		| MIS26-P03 | 3D observation of shallow gas hydrates in eastern margin of the Sea of Japan by X-CT | Atsushi Tani Daiki Nakazawa
 Hailong Lu
 other
 | Atsushi Tani | English | 
	
		| MIS26-P04 | Chemical analysis of LV59 sediment pore waters retrieved off Sakhalin Island, Russia | Hirotsugu Minami Akihiro Hachikubo
 Hirotoshi Sakagami
 other
 | Hirotsugu Minami | English | 
	
		| MIS26-P05 | Natural gas hydrates retrieved at the Terpeniya Ridge and the Tatar Trough, off the Sakhalin Island | Akihiro Hachikubo Tsuyoshi Kotake
 Hirotoshi Sakagami
 other
 | Akihiro Hachikubo | English |