Thu. May 29, 2025 9:00 AM - 10:30 AM Exhibition Hall Special Setting (1) (Exhibition Hall 7&8, Makuhari Messe)

[J] Oral
| U (Union )
| Union

[U-12] Biogeochemistry of CO world

10:00 AM - 10:15 AM

[U12-04] Evolution of the atmospheric composition of the Martian CO₂-driven dry climate system

*Yasuto Watanabe¹, Eiichi Tajika¹, Arihiro Kamada², Yoshiaki Endo³, Kazumi Ozaki³ (1.The University of Tokyo, 2.Tohoku University, 3.Institute of Science Tokyo)

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

4:10 PM - 4:30 PM

[U14-07] Future Academic Advancement Initiative (2023) and Earth and Planetary Sciences

★Invited Papers

*Takuji Nakamura¹, Eiichi Tajika², Shigeko Haruyama³, Kiyoshi Kuramoto⁴ (1.National Institute of Polar Research, 2.Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo, 3.Professor Emeritus, Mie University, 4.Department of Cosmosciences, Graduate School of Sciences, Hokkaido University)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

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

[P-PS06] Planetary Sciences

5:15 PM - 7:15 PM

[PPS06-P07] Theoretical study on the long-term stability of the climate of habitable planets: carbon cycle system and Daisyworld system

*Tomoro Kitamura¹, Eiichi Tajika¹ (1.The University of Tokyo)

Wed. May 28, 2025 10:45 AM - 12:15 PM 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

10:45 AM - 11:00 AM

[BCG06-07] Possibility of atmospheric deoxygenation events caused by intense volcanisms during the Proterozoic

*Yasuto Watanabe¹, Kazumi Ozaki², Shintaro Kadoya², Mariko Harada³, Hironao Matsumoto⁴, Eiichi Tajika¹ (1.The University of Tokyo, 2.Institution of Science Tokyo, 3.JAMSTEC, 4.University of Tsukuba)

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

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

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

5:15 PM - 7:15 PM

[BCG06-P02] A geochemical study on early diagenesis of sediments and behavior of iron isotopes on early Earth

*RYOHEI SUZUMEJI¹, Eiichi Tajika¹, Yasuto Watanabe¹ (1.Tokyo University)

Fri. May 30, 2025 3:30 PM - 5:00 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

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

[M-IS14] Paleoclimatology and paleoceanography

4:00 PM - 4:15 PM

[MIS14-28] Analysis of carbon isotope record at the Cretaceous/Paleogene boundary using an ocean biogeochemical model

*Tomoki Takeda¹, Eiichi Tajika¹ (1.Tokyo University)

Eiichi Tajika

Speaker, Author, Co-Author

★Invited Papers