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

Wed. May 28, 2025 10:45 AM - 12:15 PM 301A (International Conference Hall, Makuhari Messe)

convener:Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Fumito Shiraishi(Earth and Planetary Systems Science Program, Graduate School of Advanced Science and Engineering, Hiroshima University), Yusuke Sawaki(The University of Tokyo), Teruhiko Kashiwabara(Japan Agency for Marine-Earth Science and Technology), Chairperson:Teruhiko Kashiwabara(Japan Agency for Marine-Earth Science and Technology), Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo)

The latest results of Earth's evolution and geological processes through 4.6 billion years from Hadean to Modern, based on various approaches including fieldworks, chemical analyses, experiments and computer simulation, will be presented. In this session, we aim to discuss and understand causal relationships and interplay among the evolution of Earth's deep interior, changes in the surface environments, and development and evolution of life. Wide-ranging topics are accepted.

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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)

11:00 AM - 11:15 AM

[BCG06-08] Subglacial weathering during a snowball event could affect the carbon cycle

*Shintaro Kadoya¹, Mohit Melwani Daswani² (1.Earth-Life Science Institute, Institute of Science Tokyo, 2.Jet Propulsion Laboratory, California Institute of Technology)

11:15 AM - 11:30 AM

[BCG06-09] Stratigraphy and geochronology of the Birimian Supergroup in the coastal region, Ashanti greenstone belt, Ghana

*Satoshi Yoshimaru¹, Shoichi Kiyokawa¹, Takashi Ito², Kenji Horie³, Mami Takehara³, Kwabina Ibrahim⁴, George M Tetteh⁵, Frank K Nyame⁴ (1.Kyushu University, 2.Ibaraki University, 3.National Institute of Polar Research, 4.University of Ghana, 5.University of Mines and Technology)

11:30 AM - 11:45 AM

[BCG06-10] Constraints on bio-essential trace elements in Paleoproterozoic seawater: Implications for Paleoproterozoic biological consumptions

*Satoshi Yoshida^1,2, Hisashi Asanuma³, Tomohiko Sato⁴, Takafumi Hirata⁵, Yusuke Sawaki² (1.Center for Northeast Asian Studies, Tohoku University, 2.Department of Earth Science and Astronomy, The University of Tokyo, 3.Graduate School of Human and Environmental Studies, Kyoto University, 4. Center for Fundamental Education, Okayama University of Science, 5.Geochemical Research Center, The University of Tokyo)

11:45 AM - 12:00 PM

[BCG06-11] Sedimentological and geochemical characteristics of Mesoproterozoic Chitrakoot Formation, lower Vindhyan Supergroup, central India

*Abhishek Pandey¹, Partha Pratim Chakraborty², Ryoichi Nakada³, Akihiro Kano⁴, Fumito Shiraishi¹ (1.Hiroshima University, 2.Delhi University, 3.JAMSTEC, 4.Tokyo University)

12:00 PM - 12:15 PM

[BCG06-12] Intense continental weathering after Marinoan snowball Earth

*Yusuke Sawaki¹, Takeshi Ohno², Tsuyoshi Komiya¹ (1.The University of Tokyo, 2.Gakushuin University)

Session information