Japan Geoscience Union Meeting 2023

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[E] Oral

B (Biogeosciences ) » B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

Mon. May 22, 2023 1:45 PM - 3:15 PM 304 (International Conference Hall, Makuhari Messe)

convener:Shino Suzuki(Japan Aerospace Exploration Agency), Tomoyo Okumura(Center for Advanced Marine Core Research, Kochi University), Yuki Morono(Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology), Yuta Isaji(Japan Agency for Marine-Earth Science and Technology), Chairperson:Shino Suzuki(Japan Aerospace Exploration Agency), Tomoyo Okumura(Center for Advanced Marine Core Research, Kochi University), Yuta Isaji(Japan Agency for Marine-Earth Science and Technology)

Researches on the deep sea and deep subsurface environments, the frontier of the Earth, have illustrated a picture of the distinctive biosphere built on the complex chemical, physical, and biological interactions that exist in the vast space. Such researches have focused on various aspects of deep biosphere, including the fluxes of water and light (carbon, nitrogen, etc.) and metallic elements, types and densities of energy for life, the nature of the setting as a habitat for life, the densities and characteristics of life existing there and limits for life in various factors. Understanding through these researches has revealed that the deep biosphere is closely related to, and play important roles in the various issues lying in the climate change, management of natural energy and resources, and natural disasters. In addition, when viewing it on a geologic time scale, the researches have contributed to developing fundamental knowledge in a wide range of fields of science, including the evolution of life isolated from light energy, life-earth coevolution, chemical evolution, evolution of functional biochemical systems, and even the extraterrestrial habitability. This session welcomes presentations about a technical, experimental, theoretical, and applied researches on the Earth and planetary frontier biosphere, where various factors are complexly interrelated in time and space. We further will discuss the results systematically and multi-dimensionally, which expects to lead to the future directions of this field of science.

1:45 PM - 2:00 PM

[BBG01-01] Early magnetotaxis and the emergence of biomineralization

*Joseph Kirschvink1,2,8, Noah C. Tashbook1, Rory Changleng3, Lot Koopmans4, Myriam A.C. Kars5, Hironori Hidaka6, Kotaro Kawai7, Atsuko Kobayashi2,8, Yuhji Yamamoto2 (1.Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA, 2.Kochi Core Center, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan, 3.Department of Geosciences, Pennsylvania State University, University Park, PA 16802, USA, 4.Department of Earth Sciences, University of Oxford, Oxford, UK, 5.International Ocean Discovery Program, Texas A&M University, College Station, TX 77845, USA, 6.Department of Systems Control Engineering, Tokyo Institute of Technology, Meguro, Japan, 7.Department of Mechanical Engineering, Tokyo Institute of Technology, Meguro, Japan, 8.Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, Japan)

2:15 PM - 2:35 PM

[BBG01-03] The end-Triassic mass extinction: Molecular fossil and isotopic insights

★Invited Papers

*Calum Peter Fox1,2,3, Jessica H Whiteside4, Paul E Olsen5, Xingqian Cui6, Roger E Summons7, Erdem Idiz8, Alex I Holman2, Manuel Rigo9, Aisha Al Suwaidi3, Kliti Grice2 (1.Japanese Agency for Marine-Earth Science and Technology, Yokosuka, Japan, 2.Curtin University, Perth, Australia, 3.Khalifa University of Science and Technology, Abu Dhabi, UAE, 4.University of Southampton, Southampton, UK, 5.Columbia University in the City of New York, New York, USA, 6.Shanghai Jiao Tong University, Shanghai, China, 7.Massachusetts Institute of Technology, Cambridge, USA, 8.University of Oxford, Oxford, UK, 9.Università degli Studi di Padova, Padova, Italy)

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