[B-CG06] Rock-Bio Interactions and its Applications

Mon. May 22, 2023 9:00 AM - 10:15 AM 304 (International Conference Hall, Makuhari Messe)

convener:Yohey Suzuki(Graduate School of Science, The University of Tokyo), Keisuke Fukushi(Institute of Nature & Environmental Technology, Kanazawa University), Konomi Suda(National Institute of Advanced Industrial Science and Technology), Fumito Shiraishi(Earth and Planetary Systems Science Program, Graduate School of Advanced Science and Engineering, Hiroshima University), Chairperson:Keisuke Fukushi(Institute of Nature & Environmental Technology, Kanazawa University), Konomi Suda(National Institute of Advanced Industrial Science and Technology)

Advances in research on the deep biosphere have revealed microbial ecosystems comparable to those at near-surface settings. The exploration targeting extant life and the traces of the past life (biosignatures) in rocks has expanded from Earth to the Martian sphere, while exploration and life-detection technologies are being developed. Regarding the interaction between atmosphere-water-rock/mineral-life, research has been conducted from various perspectives such as processes at the atomic and molecular levels, phenomena on the regional fluid flow scale, the action of creating rocks, and their responses in environmental changes. These studies are also important for solving problems such as energy and mineral resources, the global environment, and disasters. This session invites a wide range of basic and applied researches based on microbiology, mineralogy/petrology, geochemistry and analytical chemistry.

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9:00 AM - 9:15 AM

[BCG06-01] Origins of spherulites observed in reefal microbial crusts in Kumejima, Okinawa

*Yujiro Sasaki¹, Kazuhiko Fujita², Naotaka Tomioka³, Yoshio Takahashi⁴, Fumito Shiraishi¹ (1.Hiroshima University, 2.Ryukyu University, 3.Japan Agency for Marine-Earth Science and Technology, 4.The University of Tokyo)

9:15 AM - 9:30 AM

[BCG06-02] 3.2 Ga biological carbon and nitrogen cycles: Constraints from banded iron formation from Fig Tree Group, S. Africa

*Hikari Saito¹, Akizumi Ishida¹, Ko Hashizume², Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University, 2.Faculty of Science, Ibaraki University)

9:30 AM - 9:45 AM

[BCG06-03] Chemical partitioning of trace elements within freezing closed-basin lakes in Mongolia

*Shuya Tan¹, Keisuke Fukushi², Baasansuren Gankhurel², TAKUMA KITAJIMA², Davaadorj Davaasuren³, Masahiro Yoda⁴ (1.Earth-Life Science Institute, Tokyo Institute of Technology, 2.Institute of Nature & Environmental Technology, Kanazawa University, 3.National University of Mongolia, 4.QJ Science Co. Ltd.)

9:45 AM - 10:05 AM

[BCG06-04] Geochemical stratigraphy of oceanic lithosphere reconstructed by spinel/garnet peridotite xenoliths from petit-spots in the northwestern Pacific

★Invited Papers

*Norikatsu Akizawa^1,3, Akira Ishikawa², Yuka Niwa², Olivier Alard³, Yoann Gréau³, Naoto Hirano⁴, Shiki Machida⁵ (1.Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 3.Macquarie University, 4.Center for Northeast Asian Studies, Tohoku University, 5.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology)

Discussion (10:05 AM - 10:15 AM)

Session information