Resource Potential and Impact for Environment and Disaster of Gas Hydrates on Continental Slope off Abashiri, the Okhotsk Sea

• Project/Area Number: 25289142
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Kitami Institute of Technology
• Principal Investigator: YAMASHITA Satoshi 北見工業大学, 工学部, 教授 (00174673)
• Co-Investigator(Renkei-kenkyūsha): SHOJI Hithoshi 北見工業大学, 工学部, 特任教授 (50201562) ; TAKAHASHI Nobuo 北見工業大学, 学長 (20108187) ; MINAMI Hirotsugu 北見工業大学, 工学部, 教授 (40241426) ; HACHIKUBO Akihiro 北見工業大学, 工学部, 教授 (50312450) ; KAWAGUCHI Takayuki 北見工業大学, 工学部, 准教授 (20310964) ; SAKAGAMI Hirotoshi 北見工業大学, 工学部, 助教 (70271757) ; KATAOKA Satsuki 神戸大学, 大学院・工学研究科, 助教 (50552080) ; YAMASAKI Shintaro 北見工業大学, 工学部, 助教 (40584602)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000); Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: メタンハイドレート / 海洋資源 / 海洋探査 / 地盤工学 / 物性試験 / 物性実験 / ガスハイドレート

Outline of Final Research Achievements

In this study, to clarify the distribution of gas-hydrate and its formative environment of seabed methane, and to evaluate the potential as resource of gas-hydrate, the geologic surveys were conducted by some cruises covering a wide area of continental slope off Abashiri, the Okhotsk Sea. The conducted investigations are the seismic geologic survey, the bathymetry and the gas plume observation by an echo sounder, and core sampling of sea-bottom sediments. Moreover, to examine the soil properties of sea bottom sediments, some kinds of shipboard tests and physical properties tests were performed for the samples.
A survey of the Okhotsk Sea offshore of Abashiri found more than 250 locations of gas plume from the seabed, and gas-hydrates were successfully sampled. The presence of BSR was confirmed in a stretch of sea where seismic survey was performed, thus indicating the widespread presence of gas hydrates offshore of Abashiri in the Okhotsk Sea.

Research Products

• [Int'l Joint Research] 陸水学研究所/モスクワ州立大学(ロシア連邦)
• [Int'l Joint Research] ゲント大学(ベルギー)
• [Int'l Joint Research] Limnological Institute SB RAS/Ghent University(ロシア連邦)
• [Int'l Joint Research] Pacific Oceanological Institute/Korea Polar Research Institute(ロシア連邦)
• [Journal Article] Sub-bottom methane hydrates off northeastern Sakhalin Island, Russia : Evaluation of methane flux by dissolved ions in the sediment pore waters (2016)
  • Author(s): 南 尚嗣, 坂上 寛敏, 八久保 晶弘, 山下 聡, 庄子 仁, 髙橋 信夫
  • Journal Title: 低温科学 Volume: 74 Pages: 153-161
  • DOI: 10.14943/lowtemsci.74.153
  • NAID: 120005743117
  • ISSN: 1880-7593
  • Year and Date: 2016-03-31
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Design of handy cone penetration tester and its application (2016)
  • Author(s): 山下 聡, 川口貴之, 大島弘己
  • Journal Title: Japanese Geotechnical Journal Volume: 11 Issue: 2 Pages: 193-200
  • DOI: 10.3208/jgs.11.193
  • NAID: 130005161614
  • ISSN: 1880-6341
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Identification method for travel time based on the time domain technique in bender element tests on sandy and clayey soils (2016)
  • Author(s): Kawaguchi, T., Ogini, T., Yamashita, S., Kawajiri, S.
  • Journal Title: Soils and Foundations Volume: 55 Issue: 5 Pages: 329-342
  • DOI: 10.1016/j.sandf.2016.08.017
  • Peer Reviewed / Open Access
• [Journal Article] Surveys of gas hydrates in the Okhotsk Sea offshore of Abashiri and soil properties of sea bottom sediments (2016)
  • Author(s): Satoshi Yamashita, Shintaro Yamasaki, Hiroki Ohshima, Satsuki Kataoka
  • Journal Title: Japanese Geotechnical Society Special Publication Volume: 2 Issue: 13 Pages: 526-530
  • DOI: 10.3208/jgssp.JPN-031
  • NAID: 130005123867
  • ISSN: 2188-8027
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 北海道沖オホーツク海でのガスプルーム調査および海底堆積土の土質特性 (2016)
  • Author(s): 三輪昌輝，山下聡，板谷和彦，八久保晶弘，坂上寛敏，山崎新太郎，片岡沙都紀，南尚嗣
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 56 Pages: 85-92
  • Acknowledgement Compliant
• [Journal Article] 深海底地盤における原位置コーン貫入試験の評価 (2016)
  • Author(s): 大島弘己，山下聡，山崎新太郎，片岡沙都紀，八久保晶弘，坂上寛敏，小西正朗，南尚嗣
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 56 Pages: 93-98
  • Acknowledgement Compliant
• [Journal Article] X線CTスキャンによるベーンせん断機構の基礎的検討 (2016)
  • Author(s): 猶原有希子，川尻峻三，田中政典，川口貴之，中村大，山下聡
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 56 Pages: 113-118
• [Journal Article] 不飽和火山灰土の液状化特性と弾性波速度 (2016)
  • Author(s): 金山未来，山下聡，川尻峻三，川口貴之，佐藤貴亮
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 56 Pages: 157-164
• [Journal Article] 地震時海底地すべりに関する模型実験 (2016)
  • Author(s): 清智泰，川尻峻三，山下聡，川口貴之，片岡沙都紀，城山翔平，山崎新太郎，中村大
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 56 Pages: 349-353
  • Acknowledgement Compliant
• [Journal Article] Measurement deviations for shear wave velocity of bender element test using time domain, cross-correlation, and frequency domain approaches (2015)
  • Author(s): Toshihiro Ogino, Takayuki Kawaguchi, Satoshi Yamashita, Shunzo Kawajiri
  • Journal Title: Soils and Foundations Volume: 55 Issue: 2 Pages: 329-342
  • DOI: 10.1016/j.sandf.2015.02.009
  • Peer Reviewed / Open Access
• [Journal Article] 「沿岸域読本」表層型メタンハイドレート―北海道周辺海域での調査例― (2015)
  • Author(s): 山下聡
  • Journal Title: 沿岸域学会誌 Volume: 28 Pages: 3-8
• [Journal Article] 北海道道東地域周辺海域のガスハイドレート調査と海底堆積土の土質特性 (2015)
  • Author(s): 小川恵介，三輪昌輝，山下聡，山崎新太郎，片岡沙都紀，南尚嗣，八久保晶弘，坂上寛敏，庄子仁
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 55 Pages: 121-130
  • Acknowledgement Compliant
• [Journal Article] 深海底地盤におけるコーン貫入試験の評価 (2015)
  • Author(s): 大島弘己，荒木裕人，山下聡，山崎新太郎
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 55 Pages: 131-136
  • Acknowledgement Compliant
• [Journal Article] Surveys of gas hydrates in the Okhotsk Sea offshore of Abashiri and soil properties of sea bottom sediments (2015)
  • Author(s): Satoshi Yamashita, Shintaro Yamasaki, Hiroki Ohshima and Satsuki Kataoka
  • Journal Title: Proceeding of 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering Volume: 印刷中
  • NAID: 130005123867
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Sequentially sampled gas hydrate water, coupled with pore water and bottom water isotopic and ionic signatures at the Kukuy mud volcano, Lake Baikal: ambiguous deep-rooted source of hydrate-forming water (2014)
  • Author(s): Minami, Hirotsugu, Akihiro Hachikubo, Hirotoshi Sakagami, Satoshi Yamashita, Yusuke Soramoto, Tsuyoshi Kotake, Nobuo Takahashi, Hitoshi Shoji, Tatyana Pogodaeva, Oleg Khlystov, Andrey Khabuev, Lieven Naudts, Marc De Batist
  • Journal Title: Geo-Marine Letters Volume: 34(2) Pages: 241-251
  • DOI: 10.1007/s00367-014-0364-4
  • Peer Reviewed / Open Access
• [Journal Article] 間隙水中の塩分濃度が海底・湖底堆積土の圧密特性に与える影響 (2014)
  • Author(s): 三浦竜司，山下聡，南尚嗣，八久保晶弘，坂上寛敏，庄子仁，高橋信夫，片岡沙都紀
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 54 Pages: 27-32
• [Journal Article] オホーツク海網走沖におけるガスハイドレートと海底地形調査 (2014)
  • Author(s): 小川恵介，山下聡，庄子仁，坂上寛敏，山崎新太郎，片岡沙都紀，三浦竜司，南尚嗣，八久保晶弘，高橋信夫
  • Journal Title: 地盤工学会北海道支部技術報告集 Volume: 54 Pages: 33-40
• [Journal Article] 間隙水中の塩分濃度低下が海底土の土質変化に与える影響 (2013)
  • Author(s): 片岡沙都紀，川口貴之，山下聡, 澁谷啓
  • Journal Title: 建設工学研究所論文報告集 Volume: 55 Pages: 27-36
  • NAID: 40019948148
  • Peer Reviewed
• [Presentation] 深海底における重力式コーン貫入試験の適用性 (2017)
  • Author(s): 山下聡，八久保晶弘，坂上寛敏，山崎新太郎，舘山一孝，小西正朗，南尚嗣
  • Organizer: 第52回地盤工学研究発表会
  • Place of Presentation: 名古屋国際会議場（名古屋市）
  • Year and Date: 2017-07-12
• [Presentation] サハリン島, 南西沖タタールトラフで採取された天然ガスハイドレートの特徴について (2016)
  • Author(s): 八久保晶弘, 太田有香, Young K. Jin, Anatoly Obzhirov, 竹谷敏, 坂上寛敏, 南尚嗣, 山下聡, 髙橋信夫, 庄子仁
  • Organizer: 第8回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京都江東区）
  • Year and Date: 2016-12-07
• [Presentation] オホーツク海南縁部のガスプルーム周辺の堆積物ガス分析 (2016)
  • Author(s): 八久保晶弘, 三輪昌輝, 坂上寛敏, 百武欣二, 南尚嗣, 山下聡, 板谷和彦, 美坂正, 山口幹人, 仁科健二
  • Organizer: 第8回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京都江東区）
  • Year and Date: 2016-12-07
• [Presentation] 北海道沖オホーツク海でのガスハイドレート調査 (2016)
  • Author(s): 三輪昌輝, 山下聡, 八久保晶弘, 坂上寛敏, 山崎新太郎, 小西正朗, 南尚嗣, 片岡沙都紀, 板谷和彦, 仁科健二
  • Organizer: 第8回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京都江東区）
  • Year and Date: 2016-12-07
• [Presentation] Geochemical feature of pore waters from gas hydrate-bearing sediment cores retrieved at Tatarsky trough off Sakhalin Island, Russia (2016)
  • Author(s): Hirotsugu Minami, Akihiro Hachikubo, Ryo Kasashima, Nozomi Oshikiri, Hirotoshi Sakagami, Satoshi Yamashita, Hitoshi Shoji, Nobuo Takahashi, Young Keun Jin, Boris Baranov and Anatoly Obzhirov
  • Organizer: 13th International conference on Gas in Marine Sediments
  • Place of Presentation: Tromso (Norway)
  • Year and Date: 2016-09-19
  • Int'l Joint Research
• [Presentation] Double structure gas hydrates discovered at the southern basin of Lake Baikal (2016)
  • Author(s): Akihiro Hachikubo, Yuka Oota, Masaaki Konishi, Hirotoshi Sakagami, Hirotsugu Minami, Satoshi Yamashita, Nobuo Takahashi, Hitoshi Shoji, Oleg Khlystov, Andrej Manakov, Gennadiy Kalmychkov and Marc De Batist
  • Organizer: 13th International conference on Gas in Marine Sediments
  • Place of Presentation: Tromso (Norway)
  • Year and Date: 2016-09-19
  • Int'l Joint Research
• [Presentation] Hydrate-bound thermogenic methane retrieved at the Tatar Trough, off southwestern Sakhalin Island (2016)
  • Author(s): Akihiro Hachikubo, Yuka Oota, Satoshi Takeya, Masaaki Konishi, Hirotoshi Sakagami, Hirotsugu Minami, Satoshi Yamashita, Nobuo Takahashi, Hitoshi Shoji, Young Keun Jin, Olga Vereshchagina and Anatoly Obzhirov
  • Organizer: 13th International conference on Gas in Marine Sediments
  • Place of Presentation: Tromso (Norway)
  • Year and Date: 2016-09-19
  • Int'l Joint Research
• [Presentation] Natural gas hydrates retrieved off Abashiri (eastern Hokkaido), the Sea of Okhotsk (2016)
  • Author(s): Akihiro Hachikubo, Satoshi Takeya, Masaaki Konishi, Hirotoshi Sakagami, Shintaro Yamasaki, Hirotsugu Minami, Satoshi Yamashita, Nobuo Takahashi and Hitoshi Shoji
  • Organizer: 13th International conference on Gas in Marine Sediments
  • Place of Presentation: Tromso (Norway)
  • Year and Date: 2016-09-19
  • Int'l Joint Research
• [Presentation] 北海道沖オホーツク海でのガスプルームおよびガスハイドレート調査 (2016)
  • Author(s): 三輪昌輝, 山下聡, 板谷和彦, 八久保晶弘, 坂上寛敏, 山崎新太郎, 片岡沙都紀, 南尚嗣, 小西正朗
  • Organizer: 第51回地盤工学研究発表会
  • Place of Presentation: 岡山大学（岡山市）
  • Year and Date: 2016-09-13
• [Presentation] 北海道沖オホーツク海でのガスプルーム調査 (2016)
  • Author(s): 三輪昌輝, 山下聡, 板谷和彦, 八久保晶弘, 坂上寛敏, 山崎新太郎, 小西正朗, 南尚嗣, 片岡沙都紀
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉市）
  • Year and Date: 2016-05-22
• [Presentation] 太平洋十勝沖でのガスハイドレート調査と海底堆積土の土質特性 (2015)
  • Author(s): 三輪昌輝, 山下聡, 南尚嗣, 八久保晶弘, 坂上寛敏, 山崎新太郎, 片岡沙都紀, 舘山一孝
  • Organizer: 第7回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京都江東区）
  • Year and Date: 2015-12-02
• [Presentation] オホーツク海網走沖で得られた天然ガスハイドレートの結晶学的特徴および包接ガス特性 (2015)
  • Author(s): 八久保晶弘, 坂上寛敏, 竹谷敏, 山崎新太郎, 南尚嗣, 山下聡, 庄子仁, 髙橋信夫
  • Organizer: 第7回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京都江東区）
  • Year and Date: 2015-12-02
• [Presentation] Ionic and isotopic analyses of pore waters from gas hydrate-bearing sediment cores retrieved at Tatarsky trough off Sakhalin Island, Russia (2015)
  • Author(s): Minami, H., A. Hachikubo, H. Sakagami, S. Yamashita, N. Takahashi, H. Shoji, Y. K. Jin, B. Baranov, A. Obzhirov
  • Organizer: The 8th International Conference on Asian Marine Geology
  • Place of Presentation: Jeju Island（Korea）
  • Year and Date: 2015-10-05
  • Int'l Joint Research
• [Presentation] Characteristics of natural gas hydrates retrieved from Tatarsky Trough, off the south western Sakhalin Island (2015)
  • Author(s): Hachikubo, A., Y. K. Jin, S. Takeya, O. Vereshchagina, H. Sakagami, H. Minami, S. Yamashita, N. Takahashi, H. Shoji, A. Obzhirov
  • Organizer: The 8th International Conference on Asian Marine Geology
  • Place of Presentation: Jeju Island（Korea）
  • Year and Date: 2015-10-05
  • Int'l Joint Research
• [Presentation] オホーツク海網走沖海底表層堆積物コア中の間隙水含有成分分析およびガスハイドレート包接メタンの14C計測 (2015)
  • Author(s): 坂上寛敏, 高野靖哉, 八久保晶弘, 南尚嗣, 山下聡, 庄子仁, 髙橋信夫, 廣田正史, 中村賢太郎, 伊藤茂
  • Organizer: 日本分析化学会第64年会
  • Place of Presentation: 九州大学（福岡市）
  • Year and Date: 2015-09-09
• [Presentation] Geological characterization of hydrate-bearing structures from the accommodation zone of Lake Baikal (2015)
  • Author(s): Khlystov, O. M., A. V. Khabuev, O. V. Belousov, H. Minami, A. Hachikubo, H. Sakagami, S. Yamashita, S. S. Vorobyova, G. V. Kalmychkov
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Subsurface sediment pore waters containing high concentration of ions at the Kukuy canyon in Lake Baikal (2015)
  • Author(s): Kasashima, R., H. Minami, A. Hachikubo, S. Yamashita, H. Sakagami, N. Oshikiri, K. Sasaki, N. Takahashi, H. Shoji, O. Khlystov, T. Pogodaeva, A. Khabuev, O. Belousov, L. Naudts, M. De Batist, M. Grachev
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Geochemistry of pore waters from gas hydrate-bearing sediment cores retrieved off southwest Sakhalin Island, Russia (2015)
  • Author(s): Oshikiri, N., H. Minami, A. Hachikubo, S. Yamashita, H. Sakagami, R. Kasashima, H. Kikuchi, S. Takano, N. Takahashi, H. Shoji, Y. K. Jin, B. Baranov, A. Obzhirov
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Chemical analysis of pore waters from gas hydrate-bearing sediment cores retrieved at the Kukuy canyon mud volcanoes and the other seep sites in Lake Baikal (2015)
  • Author(s): Minami, H., A. Hachikubo, S. Yamashita, H. Sakagami, R. Kasashima, N. Oshikiri, N. Takahashi, H. Shoji, O. Khlystov, T. Pogodaeva, A. Khabuev, O. Belousov, L. Naudts, M. De Batist, M. Grachev
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Effect of water depth on hydration number of methane hydrate (2015)
  • Author(s): Hachikubo, A., Y. Oota, Y. Shimizu, S. Takeya, H. Sakagami, H. Minami, S. Yamashita, N. Takahashi, H. Shoji, O. Khlystov, M. De Batist
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Regional characteristics of hydrate-bound hydrocarbons in Lake Baikal (2015)
  • Author(s): Hachikubo, A., Y. Oota, Y. Shimizu, S. Takeya, H. Sakagami, H. Minami, S. Yamashita, N. Takahashi, H. Shoji, O. Khlystov, M. De Batist
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] Geological and Geophysical Characteristics of Seep “KRASNY YAR”(South Lake Baikal) (2015)
  • Author(s): Khabuev, A.V., O.M. Khlystov, O.V. Belousov, D.A. Chenskiy, M.A. Soloviova, G.G. Akhmanov, H. Minami, A. Hachikubo, H. Sakagami, S. Yamashita
  • Organizer: The 6th Vereshchagin Baikal Conference
  • Place of Presentation: Irkutsk（Russia）
  • Year and Date: 2015-09-07
  • Int'l Joint Research
• [Presentation] 太平洋十勝沖での表層ガスハイドレート調査と海底堆積土の土質特性 (2015)
  • Author(s): 三輪昌輝，山下聡，小川恵介，山崎新太郎，片岡沙都紀，南尚嗣，坂上寛敏，八久保晶弘，舘山一孝
  • Organizer: 第50回地盤工学研究発表会
  • Place of Presentation: 北海道科学大学（札幌市）
  • Year and Date: 2015-09-01
• [Presentation] 深海底表層地盤におけるコーン貫入試験の評価 (2015)
  • Author(s): 大島弘己，荒木裕人，山下聡，山崎新太郎，片岡沙都紀，南尚嗣，八久保晶弘，坂上寛敏，舘山一孝
  • Organizer: 第50回地盤工学研究発表会
  • Place of Presentation: 北海道科学大学（札幌市）
  • Year and Date: 2015-09-01
• [Presentation] 北海道十勝沖海底地盤より採取した堆積土の強度特性 (2015)
  • Author(s): 城山翔平，片岡沙都紀，山下聡，山崎新太郎，三輪昌輝，大島弘己，澁谷啓
  • Organizer: 第50回地盤工学研究発表会
  • Place of Presentation: 北海道科学大学（札幌市）
  • Year and Date: 2015-09-01
• [Presentation] オホーツク海網走沖ガスハイドレート調査で採取された海底表層堆積物コア中の間隙水含有成分の分析 (2015)
  • Author(s): 高野靖哉，常盤祥平，坂上寛敏，八久保晶弘，南尚嗣，山下聡，庄子仁，髙橋信夫
  • Organizer: 化学系学協会北海道支部2015年冬季研究発表会
  • Place of Presentation: 北海道大学（札幌市）
  • Year and Date: 2015-01-27 – 2015-01-28
• [Presentation] オホーツク海網走沖でのガスハイドレート調査と海底堆積土の土質特性 (2014)
  • Author(s): 山下 聡，庄子仁，坂上寛敏，山崎新太郎，片岡沙都紀，小川恵介，南尚嗣，八久保晶弘，高橋信夫
  • Organizer: 第6回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業技術総合研究所（東京）
  • Year and Date: 2014-12-03 – 2014-12-04
• [Presentation] Gas hydrate characteristics retrieved off southeastern and southwestern Sakhalin Island (2014)
  • Author(s): Hachikubo, A., H. Sakagami, H. Minami, S. Yamashita, N. Takahashi, H. Shoji, Y. K. Jin, O. Vereshchagina, A. Obzhirov
  • Organizer: 12th International Conference on Gas in Marine Sediments
  • Place of Presentation: Taipei（Taiwan）
  • Year and Date: 2014-07-01 – 2014-07-06
• [Presentation] Low Chloride Anomalies in Sediment Pore Waters off Southwest Sakhalin Island, Russia (2014)
  • Author(s): Yota Sasaki, Hirotsugu Minami, Akihiro Hachikubo, Satoshi Yamashita, Takuma Hirano, Hirotoshi Sakagami, Nobuo Takahashi, Hitoshi Shoji, Young Keun Jin, Nataliya Nikolaeva, Alexander Derkachev, Anatoly Obzhirov, Boris Baranov
  • Organizer: 12th International conference on Gas in Marine Sediments
  • Place of Presentation: Taipei（Taiwan）
  • Year and Date: 2014-07-01 – 2014-07-06
• [Presentation] オホーツク海網走沖ガスハイドレート調査（NT13-20）で得られた海底表層堆積物コア中の間隙水含有成分の分析 (2014)
  • Author(s): 常盤祥平，久保圭佑，小竹毅，佐々木陽太，平野 拓馬，坂上 寛敏，八久保晶弘，南尚嗣，山下聡，庄子仁，高橋信夫
  • Organizer: 化学系学協会北海道支部2014年冬季研究発表会
  • Place of Presentation: 北海道大学学術交流会館（北海道札幌市）
• [Presentation] オホーツク海網走沖でのガスハイドレート調査(NT13-20) (2014)
  • Author(s): 山下聡，庄子仁，坂上寛敏，山崎新太郎，片岡沙都紀，三浦竜司，小竹毅，久保圭佑，小川恵介，佐々木陽太，平野拓馬，常盤祥平，南尚嗣，八久保晶弘，高橋信夫
  • Organizer: ブルーアース2014
  • Place of Presentation: 東京海洋大学（東京都港区）
• [Presentation] オホーツク海網走沖での海底地形およびガスハイドレート調査 (2014)
  • Author(s): 小川恵介，山下聡，庄子仁，坂上寛敏，山崎新太郎，片岡沙都紀，三浦竜司，南尚嗣，八久保晶弘，高橋信夫
  • Organizer: 第49回地盤工学研究発表会
  • Place of Presentation: 北九州市国際会議場（福岡県北九州市）
• [Presentation] 塩分濃度が深海底・湖底堆積土の圧密・強度特性に及ぼす影響 (2014)
  • Author(s): 大島弘己，三浦竜司，小川恵介，山下聡，川口貴之，片岡沙都紀
  • Organizer: 第49回地盤工学研究発表会
  • Place of Presentation: 北九州市国際会議場（福岡県北九州市）
• [Remarks] 北見工業大学 環境・エネルギー研究推進センター
  • URL: http://www-ner.office.kitami-it.ac.jp/
• [Remarks] 北見工業大学 環境エネルギー研究推進センター
  • URL: http://www-ner.office.kitami-it.ac.jp/
• [Remarks] 北見工業大学 環境・エネルギー研究推進センター
  • URL: http://www-ner.office.kitami-it.ac.jp/