Origin and evolution of water in the Earth inferred from geological evidences

Ikuo KATAYAMA; Kyoko N. MATSUKAGE; Jun-ichi KIMURA; Tatsuhiko KAWAMOTO

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS35] Why is this planet to be the Earth? -the role of water

Sun. May 24, 2015 11:00 AM - 12:45 PM 201A (2F)

Convener:*Nobukazu Seama(Department of Planetology, Graduate School of Science, Kobe University), Yoshiyuki Tatsumi(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Keiji Ohtsuki(Graduate School of Science, Kobe University), Takashi Nakagawa(JAMSTEC/MAT), Ikuo Katayama(Department of Earth and Planetary Systems Science, Hiroshima University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Akiko Nakamura(Graduate School of Science, Kobe University), Chair:Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Nobukazu Seama(Department of Planetology, Graduate School of Science, Kobe University)

11:00 AM - 11:15 AM

[MIS35-08] Origin and evolution of water in the Earth inferred from geological evidences

*Ikuo KATAYAMA¹, Kyoko N. MATSUKAGE², Jun-ichi KIMURA³, Tatsuhiko KAWAMOTO⁴ (1.Department of Earth and Planetary Systems Science, Hiroshima University, 2.Department of Earth and Planetary Sciences, Kobe University, 3.Japan Agency for Marine-Earth Scienc and Technology, 4.Department of Earth and Planetary Sciences, Kyoto University)

Keywords:water differentiation in the Earth, water evolution in the Earth, water transportation into the Earth

The persistent liquid ocean is a result of balance between input and output of water through the Earths mantle; however, the mass of ocean could be markedly reduced since Archean and might be disappeared in future. In this project, we plane to investigate the origin and evolution of water in the Earth, based mainly on D/H ratio of fluid inclusion, water content of primary magma and it time evolution, and water transportation into the mantle at subduction zone. Integrating these evidences, quantitative estimate of mass of liquid ocean through Earth history will be discussed.