Japan Geoscience Union Meeting 2018

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[JJ] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS18] Aqua planetology

Tue. May 22, 2018 1:45 PM - 3:15 PM 105 (1F International Conference Hall, Makuhari Messe)

convener:Yasuhito Sekine(Department of Earth and Planetary Science, University of Tokyo), Tomohiro Usui(Earth-Life Science Institute, Tokyo Institute of Technology), Hidenori Genda(東京工業大学 地球生命研究所, 共同), Takazo Shibuya(Japan Agency for Marine-Earth Science and Technology), Chairperson:Shibuya Takazo(JAMSTEC), Fukushi Keisuke, Sekine Yasuhito(Dept. Earth & Planetary Sci., University of Tokyo)

1:45 PM - 2:00 PM

[MIS18-07] Geo-electrochemical metal production: Implications for the chemical evolution of life

*Norio Kitadai1 (1.Earth-Life Science Institute, Tokyo Institute of Technology)

Keywords:electrochemistry, deep-sea hydrothermal system, origin of life

Here, I show a possibility that the geo-electrochemcal systems in the early-ocean hydrothermal vent environments worked as an effective means of precipitation and concentration of zero-valent forms of the transition metals (e.g., Ag0, Cu0, Fe0, Pb0), thereby provided catalytically favorable conditions for the chemical evolution of life.