JpGU-AGU Joint Meeting 2017

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[JJ] Oral

O (Public) » Public

[O-03] [JJ] Recent Advances in Earth and Planetary Science

Sun. May 21, 2017 10:15 AM - 11:25 AM IC (International Conference Hall 2F)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University), Katsuyoshi Michibayashi(Institute of Geosciences, Shizuoka University), Yasuhito Sekine(Department of Earth and Planetary Science, University of Tokyo), Chairperson:Kou Yamada(Waseda University)

10:50 AM - 11:25 AM

[O03-02] The Earth made the first life

★Invited papers

*Takeshi Kakegawa1 (1.Graduate School of Science, Tohoku University)

Keywords:the first life, early Earth

The first life was most likely flourished on the Earth by 4.0 billion years ago. My research group is synthesizing amino acids, nucleobases, peptides, and nucleotides by simulation experiments of the early Earth conditions. These results indicate how suitable the early Earth was for the prebiotic organic synthesis. The eraly Earth became habitat for micro-organisms, and such life’s activities are recoded in ancient rocks. Our group is also searching traces of life in ancient rocks. In this presentation, our finding of traces of life in >3.7 Ga Isua Supracrustal Belt will be introduced.