Japan Geoscience Union Meeting 2025

Naohiko Ohkouchi

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Convener, Chairperson

Tue. May 27, 2025 1:45 PM - 3:15 PM 102 (International Conference Hall, Makuhari Messe)

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

[M-IS22] Biogeochemistry

convener:Keitaro Fukushima(Fukushima University), Keisuke Koba(Center for Ecological Research, Kyoto University), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology), Chairperson:Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology)

Tue. May 27, 2025 3:30 PM - 5:00 PM 102 (International Conference Hall, Makuhari Messe)

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

[M-IS22] Biogeochemistry

convener:Keitaro Fukushima(Fukushima University), Keisuke Koba(Center for Ecological Research, Kyoto University), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology), Chairperson:Keitaro Fukushima(Fukushima University), Keisuke Koba(Center for Ecological Research, Kyoto University)

Tue. May 27, 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-IS22] Biogeochemistry

convener:Keitaro Fukushima(Fukushima University), Keisuke Koba(Center for Ecological Research, Kyoto University), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology)

Speaker, Author, Co-Author

Wed. May 28, 2025 3:30 PM - 5:00 PM Exhibition Hall Special Setting (1) (Exhibition Hall 7&8, Makuhari Messe)

  • [E] Oral
  • | U (Union )
  • | Union

[U-02] Advanced understanding of Quaternary and Anthropocene hydroclimate changes in East Asia

Mon. May 26, 2025 3:30 PM - 5:00 PM Exhibition Hall Special Setting (1) (Exhibition Hall 7&8, Makuhari Messe)

  • [J] Oral
  • | U (Union )
  • | Union

[U-14] Future Academic Advancement Initiative in Earth and Planetary Science

Thu. May 29, 2025 9:00 AM - 10:30 AM 304 (International Conference Hall, Makuhari Messe)

  • [J] Oral
  • | P (Space and Planetary Sciences )
  • | P-PS Planetary Sciences

[P-PS07] Formation and evolution of planetary materials in the Solar System

Thu. May 29, 2025 9:00 AM - 10:30 AM Exhibition Hall Special Setting (6) (Exhibition Hall 7&8, Makuhari Messe)

  • [E] Oral
  • | A (Atmospheric and Hydrospheric Sciences )
  • | A-OS Ocean Sciences & Ocean Environment

[A-OS15] Marine ecosystems and biogeochemical cycles: theory, observation and modeling

Wed. May 28, 2025 10:45 AM - 12:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

  • [J] Oral
  • | H (Human Geosciences )
  • | H-TT Technology & Techniques

[H-TT16] Development and application of environmental traceability methods

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

  • [J] Poster
  • | B (Biogeosciences )
  • | B-PT Paleontology

[B-PT04] Biotic History

5:15 PM - 7:15 PM

[BPT04-P03] N2-fixation as a response to Large Igneous Province activity during the end-Triassic mass extinction

*Calum Peter Fox1, Yuta Isaji1, Nanako O. Ogawa1, Jessica H. Whiteside2, Aisha Al Suwaidi3, Naohiko Ohkouchi1 (1.Japanese Agency for Marine-Earth Science and Technology, , 2.Department of Earth and Environmental Sciences, San Diego State University, United States of America, 3.Department of Earth Science, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates )

Thu. May 29, 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-IS14] Paleoclimatology and paleoceanography

Fri. May 30, 2025 1:45 PM - 3:15 PM 103 (International Conference Hall, Makuhari Messe)

  • [J] Oral
  • | M (Multidisciplinary and Interdisciplinary)
  • | M-ZZ Others

[M-ZZ42] Frontiers in geochemistry: new challenges and future prospects

1:50 PM - 2:15 PM

[MZZ42-01] Cation partitioning during aqueous alteration of asteroid Ryugu recorded in carbonate minerals and Mg isotopes

★Invited Papers

*Toshihiro Yoshimura1, Daisuke Araoka2, Hiroshi Naraoka3, Saburo Sakai1, Nanako O. Ogawa1, Hisayoshi Yurimoto4, Mayu Morita5, Morihiko Onose5, Tetsuya Yokoyama6, Martin Bizzarro7, Satoru Tanaka5, Naohiko Ohkouchi1, Toshiki Koga1, Jason P. Dworkin8, Tomoki Nakamura9, Takaaki Noguchi10, Ryuji Okazaki3, Hikaru Yabuta11, Kanako Sakamoto12, Toru Yada12, Masahiro Nishimura12, Aiko Nakato12, Akiko Miyazaki12, Kasumi Yogata12, Masanao Abe12, Tatsuaki Okada12, Tomohiro Usui12, Makoto Yoshikawa12, Takanao Saiki12, Satoshi Tanaka12, Fuyuto Terui13, Satoru Nakazawa12, Sei-ichiro WATANABE14, Yuichi Tsuda12, Shogo Tachibana15,12, Yoshinori Takano1 (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute of Advanced Industrial Science and Technology, 3.Kyushu University, 4.Hokkaido University, 5.HORIBA Techno Service Co., Ltd, 6.Institute of Science Tokyo, 7.University of Copenhagen, 8.NASA Goddard Space Flight Center, 9.Tohoku University, 10.Kyoto University, 11.Hiroshima University, 12.Japan Aerospace Exploration Agency, 13.Kanagawa Institute of Technology, 14.Nagoya University, 15.University of Tokyo)