Outline of Session

Multidisciplinary and Interdisciplinary(M) / Intersection(IS)
M-IS23 Gas hydrates for environmental, material, and resource sciences

Short title Gas hydrates
Oral presentation
Date/Room/Chair 		May 21 PM1 (13:45 - 15:15) 101B Saeko Ishihama  / Atsushi Tani 
May 21 PM2 (15:30 - 17:00) 101B Hiroyuki Ochiai  / Shusaku Goto 
Poster presentation
Date/Room 		May 21 (Core Time 17:15 - 18:30)  
Contact Hitoshi Tomaru
Email tomaru@eps.s.u-tokyo.ac.jp
Convener Hitoshi Tomaru  / Akihiro Hachikubo  / Manabu Tanahashi 
Scope An increasing number of researches are focused on the natural gas hydrates system on the deep marine/lake and permafrost environments. Application of gas hydrates for material science and natural gas resources have also been a key issue and well developed recently. This session aims to discuss and improve recent topics and results from various researches associated with gas hydrates.
Notes  


Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 21 PM1 (13:45-15:15) 101B                              to the top
13:45 - 14:00 MIS23-01 Occurrence and origin of shallow gas hydrates Ryo Matsumoto Ryo Matsumoto English
14:00 - 14:15 MIS23-02 In situ measurement of the amount og free gas of deep sea sediments by Time Domain Reflectometry(TDR) method Hiroyuki Ochiai
Ryo Matsumoto
Mineo Hiromatsu
other 		Hiroyuki Ochiai English
14:15 - 14:30 MIS23-03 Thermal structure in the western Joetsu Basin, offshore Sado Island, Japan Shusaku Goto
Sumito Morita
Manabu Tanahashi
other 		Shusaku Goto English
14:30 - 14:45 MIS23-04 Marine surveys for gas-hydrate off Abashiri, the Sea of Okhotsk Satoshi Yamashita
Ryo Matsumoto
Hirotsugu Minami
other 		Satoshi Yamashita English
14:45 - 15:00 MIS23-05 Crystallographic properties of gas hydrates off Sakhalin Island (Sea of Okhotsk) using Raman spectroscopy & calorimetry Akihiro Hachikubo
Hirotoshi Sakagami
Hirotsugu Minami
other 		Akihiro Hachikubo English
15:00 - 15:15 MIS23-06 Sampling method and chemical analyses of gas hydrate waters retrieved from Kukuy K-9 mud volcano in Lake Baikal Hirotsugu Minami
Akihiro Hachikubo
Kazuya Tatsumi
other 		Hirotsugu Minami English
Oral Presentation   May 21 PM2 (15:30-17:00) 101B                              to the top
15:30 - 15:45 MIS23-07 High-resolution Seafloor Survey and Preliminary Geochemical Investigations in the Daini-Atsumi Knoll. Sadao Nagakubo
Yoshihiro Nakatsuka
Fujio Yamamoto
other 		Sadao Nagakubo English
15:45 - 16:00 MIS23-08 Biogeochemical processes in gas hydrate-bearing mud volcano sediments from the Kumano forearc basin, Japan Akira Ijiri
Tomohiro Toki
Yasuhiko T. Yamaguchi
other 		Akira Ijiri English
16:00 - 16:15 MIS23-09 Dissociation mechanism of methane clathrate hydrate in different size of pore spaces Satoshi Takeya
Akihiro Hachikubo
Evgeny Chuvilin
other 		Satoshi Takeya English
16:15 - 16:30 3-min talk in an oral session
Presentation No Title Author Presenter Abstract
MIS23-P01 Observation of methane plumes with quantitative echo sounder Chiharu Aoyama Chiharu Aoyama English
MIS23-P02 Preliminary account of chemosynthetic benthic communities associated with gas hydrate at the eastern margin of Japan Sea Hideki Numanami
Ryo Matsumoto
Hiroyuki Ochiai
other 		Hideki Numanami English
MIS23-P03 Depth profile of formaldehyde concentration in pore water from eastern margin of the Sea of Japan Naoya Yamamoto
Atsushi Tani
Katsunori Yanagawa
other 		Naoya Yamamoto English
MIS23-P04 The Changes of Sedimentation Rates Based on Tephrochronology in the Late Pleistocene Sediments off Joetsu, Japan Yuya Nakamura
Toshihiko Sugai
Takeshi Ishihara
other 		Yuya Nakamura English
MIS23-P05 Paleoceanographic change in the eastern margin of Japan Sea, based on oxygen and carbon isotope during the last 130 kyr Saeko Ishihama
Takeshi Oi
Shiro Hasegawa
other 		Saeko Ishihama English
16:30 - 16:45 3-min talk in an oral session
Presentation No Title Author Presenter Abstract
MIS23-P06 Plaeoclimatology and palaeoceanography of Japan Sea based on the organic carbon contents of MD10-3304 core for the past Tasuku Urabe
Tomohiko Kigoshi
Fujio Kumon 		Tasuku Urabe English
MIS23-P07 Molecular and isotopic signatures of dissolved gas in sub-bottom sediments retrieved off Abashiri, the Sea of Okhotsk Akihiro Hachikubo
Hitoshi Tomaru
Mineo Hiromatsu
other 		Akihiro Hachikubo English
MIS23-P08 Sulfur concentration and isotopic composition in gas-charged marine sediments from the Sea of Okhotsk, off Abashiri Hitoshi Tomaru
MATSUMOTO, Ryo
HIROMATSU, Mineo
other 		Hitoshi Tomaru English
MIS23-P09 Chemical and isotopic analyses of sediment pore waters collected off Abashiri, Hokkaido, Japan Hirotsugu Minami
Satoshi Yamashita
Akihiro Hachikubo
other 		Hirotsugu Minami English
MIS23-P10 Origin of lithium in pore fluid of Kumano mud volcano, Nankai accretionary prism Yoshiro Nishio
Akira Ijiri
Tomohiro Toki
other 		Yoshiro Nishio English
16:45 - 17:00 3-min talk in an oral session
Presentation No Title Author Presenter Abstract
MIS23-P11 The science program for the first offshore production test of methane hydrates Koji Yamamoto Koji Yamamoto English
MIS23-P12 Study on formation efficiency of alcohols and aldehydes in gamma-irradiated methane and ethane hydrates Atsushi Tani
Takuya Higuchi 		Atsushi Tani English
MIS23-P13 Pattern formation of tetrahydrofuran hydrate and an image-analysis technique to measure hydrates size scale Michihiro Muraoka
Kazushige Nagashima 		Michihiro Muraoka English


Presentation No Title Author Presenter Abstract
Poster Presentation   May 21  Core Time (17:15-18:30)                     to the top
MIS23-P01 Observation of methane plumes with quantitative echo sounder Chiharu Aoyama Chiharu Aoyama English
MIS23-P02 Preliminary account of chemosynthetic benthic communities associated with gas hydrate at the eastern margin of Japan Sea Hideki Numanami
Ryo Matsumoto
Hiroyuki Ochiai
other 		Hideki Numanami English
MIS23-P03 Depth profile of formaldehyde concentration in pore water from eastern margin of the Sea of Japan Naoya Yamamoto
Atsushi Tani
Katsunori Yanagawa
other 		Naoya Yamamoto English
MIS23-P04 The Changes of Sedimentation Rates Based on Tephrochronology in the Late Pleistocene Sediments off Joetsu, Japan Yuya Nakamura
Toshihiko Sugai
Takeshi Ishihara
other 		Yuya Nakamura English
MIS23-P05 Paleoceanographic change in the eastern margin of Japan Sea, based on oxygen and carbon isotope during the last 130 kyr Saeko Ishihama
Takeshi Oi
Shiro Hasegawa
other 		Saeko Ishihama English
MIS23-P06 Plaeoclimatology and palaeoceanography of Japan Sea based on the organic carbon contents of MD10-3304 core for the past Tasuku Urabe
Tomohiko Kigoshi
Fujio Kumon 		Tasuku Urabe English
MIS23-P07 Molecular and isotopic signatures of dissolved gas in sub-bottom sediments retrieved off Abashiri, the Sea of Okhotsk Akihiro Hachikubo
Hitoshi Tomaru
Mineo Hiromatsu
other 		Akihiro Hachikubo English
MIS23-P08 Sulfur concentration and isotopic composition in gas-charged marine sediments from the Sea of Okhotsk, off Abashiri Hitoshi Tomaru
MATSUMOTO, Ryo
HIROMATSU, Mineo
other 		Hitoshi Tomaru English
MIS23-P09 Chemical and isotopic analyses of sediment pore waters collected off Abashiri, Hokkaido, Japan Hirotsugu Minami
Satoshi Yamashita
Akihiro Hachikubo
other 		Hirotsugu Minami English
MIS23-P10 Origin of lithium in pore fluid of Kumano mud volcano, Nankai accretionary prism Yoshiro Nishio
Akira Ijiri
Tomohiro Toki
other 		Yoshiro Nishio English
MIS23-P11 The science program for the first offshore production test of methane hydrates Koji Yamamoto Koji Yamamoto English
MIS23-P12 Study on formation efficiency of alcohols and aldehydes in gamma-irradiated methane and ethane hydrates Atsushi Tani
Takuya Higuchi 		Atsushi Tani English
MIS23-P13 Pattern formation of tetrahydrofuran hydrate and an image-analysis technique to measure hydrates size scale Michihiro Muraoka
Kazushige Nagashima 		Michihiro Muraoka English