Tue. May 27, 2025 9:00 AM - 10:30 AM 106 (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI28] Drilling Earth Science

convener:Manami Kitamura(National Institute of Advanced Industrial Science and Technology ), Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Go-Ichiro Uramoto(Kochi University), Akira Ijiri(Kobe University), Chairperson:Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Akira Ijiri(Kobe University), Go-Ichiro Uramoto(Kochi University), Manami Kitamura(National Institute of Advanced Industrial Science and Technology)

Tue. May 27, 2025 10:45 AM - 12:15 PM 106 (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI28] Drilling Earth Science

convener:Manami Kitamura(National Institute of Advanced Industrial Science and Technology ), Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Go-Ichiro Uramoto(Kochi University), Akira Ijiri(Kobe University), Chairperson:Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Akira Ijiri(Kobe University), Go-Ichiro Uramoto(Kochi University), Manami Kitamura(National Institute of Advanced Industrial Science and Technology)

Tue. May 27, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| S (Solid Earth Sciences )
| S-GC Geochemistry

[S-GC37] Volatiles in the Earth - from Surface to Deep Mantle

5:15 PM - 7:15 PM

[SGC37-P06] First direct constraints of the stable isotope composition of the slab-derived fluids: evidence from the fluid inclusions in high-P type metamorphic rocks.

*Kenta K. Yoshida¹, Ryu Uemura², Akira Ijiri³, Minoru Ikehara⁴, Takao Hirajima⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Nagoya University, 3.Kobe University, 4.Kochi University, 5.Kyoto University)

Mon. May 26, 2025 10:45 AM - 12:15 PM 105 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG46] Uncovering stress accumulation and fault strengthening of megathrust earthquakes

11:00 AM - 11:15 AM

[SCG46-08] Hydrogeology of the frontal prism near the Japan Trench revealed by geochemical analyses of IODP Expedition 405

*Tsuyoshi Ishikawa¹, Akira Ijiri², Cameron Brown³, Yuki Morono¹, Troy Rasbury⁴, Rebecca Robertson⁵, Chijun Sun⁶, Junli Zhang⁷, Marianne Conin⁸, Patrick Fulton⁹, Jamie Kirkpatrick¹⁰, Christine Regalla¹¹, Kohtaro Ujiie¹², Shuichi Kodaira¹, Lena Maeda¹, Natsumi Okutsu¹, the Expedition 405 Scientists (1.JAMSTEC, 2.Kobe University, 3.University of California Los Angeles, 4.Stony Brook University, 5.Durham University, 6.University of California Davis, 7.University of Bremen, 8.University of Lorraine, 9.Cornell University, 10.University of Nevada, Reno, 11.Northern Arizona University, 12.University of Tsukuba)

Wed. May 28, 2025 9:00 AM - 10:30 AM 301A (International Conference Hall, Makuhari Messe)

[J] Oral
| B (Biogeosciences )
| B-CG Complex & General

[B-CG06] Decoding the history of Earth: From Hadean to the present

10:15 AM - 10:30 AM

[BCG06-06] MALDI-TOFMS 2D-mapping analysis of indigenous biomarkers for oxygenic photosynthesis preserved in the Archean and Proterozoic black shales

Kei-ichiro Ishikawa¹, Hiroki Saito¹, *Kosei E. Yamaguchi^1,2, Tomoyo Okumura³, Akira Ijiri⁴ (1.Toho University, 2.NASA Astrobiology Institute, 3.Kochi University, 4.Kobe University)

Thu. May 29, 2025 1:45 PM - 3:15 PM 301A (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS11] Tsunami deposit

3:00 PM - 3:15 PM

[MIS11-06] Anomalous Sulfate Ion Concentration in Porewater of Surface Sediments off Noroshi, Noto Peninsula

*Gen Takatori¹, Akira Ijiri^1,2, Yudai Kobayashi¹, Takuya Sagawa³, Tomohiro Toki⁴, Takanori Kagoshima⁵, Shimpei Ohtsuka⁵, JING ZHANG⁵, Yoshiro Nishio⁶, Zahra Zandvakili⁶, Jin-Oh Park⁷ (1.Kobe University, 2. JAMSTEC, 3.Kanazawa University , 4.University of the Ryukyus, 5.University of Toyama, 6.Kochi University, 7.The University of Tokyo)

Sun. May 25, 2025 1:45 PM - 3:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

2:45 PM - 3:00 PM

[MIS20-04] Depth of origin of boron in surface pore fluids around the epicenter of the Noto Peninsula earthquake

*Tomohiro Toki^1,2, Yohei Morinaga¹, Ryuichi Shinjo^1,2, Zahra Zandvakili³, Yoshiro Nishio³, Takanori Kagoshima⁴, Shimpei Otsuka⁴, JING ZHANG⁴, Yodai Kobayashi⁵, Akira Ijiri^5,6, Jin-Oh Park⁷, KH-24-E1 Scientific Party (1.Faculty of Science, University of the Ryukyus, 2.RIHN, 3.Kochi University, 4.University of Toyama, 5.Kobe University, 6.JAMSTEC, 7.The University of Tokyo)

3:00 PM - 3:15 PM

[MIS20-05] Discharge of deeply rooted fluids from submarine mud volcanoes in the northern Ryukyu Trench slope

Kantaro Yamada¹, Tomohiro Toki², Tsuyoshi Ishikawa³, Jun-ichiro Ishibashi¹, Hironori Otsuka⁴, Takuya Itaki⁵, Masafumi MURAYAMA⁶, *Akira Ijiri¹ (1.Kobe University, 2.University of the Ryukyus, 3.JAMSTEC, 4.The University of Tokyo, 5.AIST, 6.Kochi University)

Sun. May 25, 2025 3:30 PM - 5:00 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

3:30 PM - 3:45 PM

[MIS20-06] Emission of dissolved organic carbon from submarine mud volcanoes along the Ryukyu Trench

Yui Yoshizaki¹, Tatsuhiko Hoshino³, Shigeyoshi Otosaka², Youhei Yamashita⁴, Yohei Matsui³, Shinsuke Kawagucci³, Kazuyo Yamaji¹, Mmakoto Takeuchi², Kei Okamura⁵, Takuro Noguchi⁵, *Akira Ijiri¹ (1.Kobe University, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.JAMSTEC, 4.Hokkaido University, 5.Kochi University)

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

5:15 PM - 7:15 PM

[MIS20-P03] Source Depth of Sediments in Mud Volcanoes in the Ryukyu Trench to Nankai Trough

*Rina Fukuchi¹, Hironori Otsuka², Akira Ijiri³, Tomohiro Toki⁴, Masafumi MURAYAMA⁵ (1.Naruto university of Education, 2.Earthquake Research Institute, The University of Tokyo, 3.Kobe University, 4.University of Ryukyu, 5.Kochi University)

Akira Ijiri

Convener, Chairperson

[M-GI28] Drilling Earth Science

[M-GI28] Drilling Earth Science

Speaker, Author, Co-Author

[S-GC37] Volatiles in the Earth - from Surface to Deep Mantle

[SGC37-P06] First direct constraints of the stable isotope composition of the slab-derived fluids: evidence from the fluid inclusions in high-P type metamorphic rocks.

[S-CG46] Uncovering stress accumulation and fault strengthening of megathrust earthquakes

[SCG46-08] Hydrogeology of the frontal prism near the Japan Trench revealed by geochemical analyses of IODP Expedition 405

[B-CG06] Decoding the history of Earth: From Hadean to the present

[BCG06-06] MALDI-TOFMS 2D-mapping analysis of indigenous biomarkers for oxygenic photosynthesis preserved in the Archean and Proterozoic black shales

[M-IS11] Tsunami deposit

[MIS11-06] Anomalous Sulfate Ion Concentration in Porewater of Surface Sediments off Noroshi, Noto Peninsula

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

[MIS20-04] Depth of origin of boron in surface pore fluids around the epicenter of the Noto Peninsula earthquake

[MIS20-05] Discharge of deeply rooted fluids from submarine mud volcanoes in the northern Ryukyu Trench slope

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

[MIS20-06] Emission of dissolved organic carbon from submarine mud volcanoes along the Ryukyu Trench

[M-IS20] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

[MIS20-P03] Source Depth of Sediments in Mud Volcanoes in the Ryukyu Trench to Nankai Trough