2017 - 2022 Paleoclimate dynamics of the Southern Ocean
2018 - 2021 How the world-largest earthquake occurred at the world-hottest ridge subduction zone? A challenge from geothermal prespective.
2018 - 2021 Marine environments recorded in siliceous microfossil skeletons: species-level analysis of isotopic ratios and minor trace elements
2016 - 2021 Investigation of ancient methane seepage in Sakhalin using silica clathrate minerals
2018 - 2020 Investigation of birth and evolutional history of photosynthetic organism by biomarker imaging of Achaean rocks
2017 - 2020 study on the formation and accumulation process of microbial methane by highly sensitive methane clumped isotope analysis
2015 - 2018 Paleoenvironmental reconstruction by imaging mass spectrometry of banded sediment
2014 - 2017 Investigation of subseafloor environments based on methane stable isotopologues
2014 - 2016 Estimation of subsidence records and earthquake damages of Nankai earthquakes from the investigation of structures and objects on the seafloor along the Kochi coastline.
2011 - 2014 Investigation of microbial conversion process of CO2 in marine sediment-a basic study for carbon dioxide capture and storage-
2011 - 2013 Reconstruction of sub-bottom section of geologic methane-seep site - variety of seep activity indicated by fossil chemosynthetic communities
2009 - 2011 Oxygen isotope measurements on silica in marine sediments from the western North Pacific
2009 - 2011 Development of a simple method for oxygen isotope analysis on microgram quantities of biogenic opal
2006 - 2009 Evolution of chemosynthetic communities since the Cretaceous-with special reference to sub-bottom structure of methane-seepage habitats
2007 - 2008 自生炭酸塩岩の同位体分子指標を用いた沈み込み帯の間隙流体移動の長期観測
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Papers (69)：
Takami Nobuhara, Hakuichi Koike, Akira Ijiri. Fossil tubeworms from the Middle Miocene Bessho Formation in Matsumoto City, Nagano Prefecture, Central Japan. Fossils. 2024. 115. 53-64
Miho Asada, Mikiya Yamashita, Rina Fukuchi, Toshiyuki Yokota, Tomohiro Toki, Akira Ijiri, Kiichiro Kawamura. Identification of a large mud volcano field in the Hyuga-nada, northern end of the Ryukyu trench, offshore Japan. Frontiers in Earth Science. 2023. 11
Mori Fumiaki, Ijiri Akira, Nishimura Tomoya, Wakamatsu Taisuke, Katsuki Nozomi, Morono Yuki. Cultivation of Piezotolerant and Piezophilic Hyperthermophiles with a Newly Developed Constant High Pressure and Temperature Culturing and Monitoring System. Microbes and Environments. 2023. 38. 6. n/a
Yuki Mitsutome, Ko Agena, Tomohiro Toki, Ke-Han Song, Ryuichi Shinjo, Akira Ijiri. Assessing the activity of mud volcanism using boron isotope ratios in pore water from surface sediments of mud volcanoes off Tanegashima (SW Japan). Frontiers in Marine Science. 2023. 10
Ijiri, A, Setoguchi, R, Mitsutome, Y, Toki, T, Murayama, M, Hagino, K, Hamada, Y, Yamagata, T, Matsuzaki, H, Tanikawa, W, et al. Origins of sediments and fluids in submarine mud volcanoes off Tanegashima Island, northern Ryukyu Trench, Japan. Frontiers in Earth Science. 2023. 11
Tobin, H, Hirose, T, Ikari, M, Kanagawa, K, Kimura, G, Kinoshita, M, Kitajima, H, Saffer, D, Yamaguchi, A. Eguchi, N, et al. Volume 358: NanTroSEIZE Plate Boundary Deep Riser 4: Nankai Seismogenic/Slow Slip Megathrust. Proceedings of the International Ocean Discovery Program. 2020
H. Tobin, T. Hirose, M. Ikari, K. Kanagawa, G. Kimura, M. Kinoshita, H. Kitajima, D. Saffer, A. Yamaguchi, N. Eguchi, et al. Preliminary Report Expedition 358: NanTroSEIZE Plate Boundary Deep Riser 4: Nankai Seismogenic/Slow Slip Megathrust. International Ocean Discovery Program Preliminary Report. 2019
間隙水および炭化水素ガスの化学・同位体組成から推定される南海トラフ熊野前弧海盆深部の流体移動
(Japan Geoscience Union Meeting 2023 2023)
日本海上越沖の海底深部掘削コアに見る炭酸塩コンクリーションの初期形成過程
(Japan Geoscience Union Meeting 2023 2023)
Single-channel seismic structure of mud volcanoes on the landward slope of Ryukyu Trench off Tanegashima island
(Japan Geoscience Union Meeting 2023 2023)
種子島沖第15海底泥火山の噴出堆積物中から採取されたメタンハイドレートの起源
(Japan Geoscience Union Meeting 2023 2023)
種子島沖海底泥火山群からの溶存有機態炭素の放出
(Japan Geoscience Union Meeting 2023 2023)
2000 - 2003 Hokkaido University Graduate School of Science Department of Earth and Planetary Sciences
1998 - 2000 Hokkaido University Graduate School of Environmental Earth Science
1993 - 1998 Shinshu University Faculty of Science Department of Geology
Professional career (1)：
博士(理学) (北海道大学)
Work history (8)：
2024/04 - 現在 Kobe University Graduate School of Maritime Sciences
2021/04 - 現在 JAMSTEC
2021/04 - 2024/03 Kobe University Graduate School of Maritime Sciences Associate professor
2014/04 - 2021/03 海洋研究開発機構 高知コア研究所 主任研究員
2011/04 - 2014/03 海洋研究開発機構 高知コア研究所 研究員
2010/04 - 2011/03 The University of Tokyo
2007/04 - 2010/03 海洋研究開発機構 ポストドクトラル研究員
2004/01 - 2007/03 Hokkaido University
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Awards (3)：
2017 - PNAS, Cozzareli Prize 2017 Applied Biological, Agricaltual, and Environmental Sciences “Methyl-compound use and slow growth characterize microbial life in 2-km-deep subseafloor coal and shale beds”
2007/05 - Paleo-3 Most Cited Paper 2003-2007 Award Paleoenvironmental changes in the northern area of the East China Sea during the past 42,00 years
