[B-BG02] Interaction between Life, Water, Mineral, and Atmosphere

convener:Yuichiro Ueno(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Takeshi Kakegawa(Graduate School of Science, Tohoku University), Ken Takai(Extremobiosphere Research Center, Japan Agency for Marine-Earth Science & Technology), Yohey Suzuki(Graduate School of Science, The University of Tokyo)

Biological activity on Earth is based on dynamic and diverse physico-chemical processes throughout the history of the Earth. It is essential to study interaction between Life, Water, Mineral and Atmosphere. In order to understand the complex biogeochemical system, it is necessary to communicate various researchers from different disciplines. This session provides an indispensable opportunity to discuss the Earth's biosphere as a whole from wide range of interdisciplinary researches

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[BBG02-01] Search for biosignatures on Mars by the Life-signature Detection Microscope (LDM)

*Yoshitaka Yoshimura¹, Akihiko Yamagishi², Atsuo Miyakawa², Satoshi Sasaki³, Eiichi Imai⁴, Keigo Enya⁵, Kensei Kobayashi⁶, Yoko Kebukawa⁶, Tomoka Okada⁶, MITA Hajime⁷, Takeshi Naganuma⁸, Takehiko Satoh⁵, Kazuhisa Fujita⁵, Tomohiro Usui⁵ (1.Tamagawa University, 2.Tokyo University of Pharmacy and Life Science, 3.Tokyo University of Technology, 4.Nagaoka University of Technology, 5.Japan Aerospace Exploration Agency, 6.Yokohama National University, 7.Fukuoka Institute of Technology, 8.Hiroshima University)

[BBG02-02] Genomic and magnetosome features of magnetotactic bacteria in a deep-sea hydrothermal vent chimney

*Shinsaku Nakano¹, Shingo Kato², Mariko Kouduka¹, Toshitsugu Yamazaki³, Yohey Suzuki¹ (1.Graduate School of Science, The University of Tokyo, 2.RIKEN BioResource Research Center, 3.Atmosphere and Ocean Research Institute, The University of Tokyo)

[BBG02-03] CaCO₃ nucleation process of spherulites

*Fumito Shiraishi¹, Takayuki Akimoto¹, Naotaka Tomioka², Satoko Motai², Yoshio Takahashi³ (1.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, 2.Kochi Institute for Core Sample Research, JAMSTEC, 3.Department of Earth and Planetary Science, The University of Tokyo)

[BBG02-04] Characteristics of organic matter as inhibitor of calcium silicate hydrate formation

*Kanako Toda¹, Takumi Saito², Ryosuke Kikuchi¹, Tsubasa Otake¹, Tsutomu Sato¹ (1.Faculty of Engineering, Hokkaido University, 2.School of Engineering, The University of Tokyo)

[BBG02-05] Heterogeneity in nitrogen source for microbial activity recorded in 2.0 Ga Zaonega Formation, NW Russia

*Akizumi Ishida¹, Kouhei Sasaki¹, Ko Hashizume², Takeshi Kakegawa¹, Aivo Lepland³ (1.Department of Earth Science, Graduate school of Science, Tohoku University, 2.Faculty of Science, Ibaraki University, Japan., 3.Geological Survey of Norway, Norway)

[BBG02-06] Constraints on primary producers at 3.2 Ga Barberton oceans: geological and geochemical studies on chert samples from the Sheba Hills area, Barberton

*Hikari Saito¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Tohoku University department of Earth Science)