Mapping Water in the Deep Mantle
【研究キーワード】
Earth composition / mantle transition zone / hydrous minerals / global seismology / molecular dynamics
【研究成果の概要】
We examine mantle water to understand Earth's history driven by plate tectonics. We published first observation of iron-spin transition in the lower mantle which identifies oceanic plates necessary to carry water into the deep mantle. Shephard et al., Nature Communications, 2021. Developed a new cross filter technique to identify mineral and chemical anomalies in the lower mantle presented at the 2021 Goldschmidt meeting in July and AGU in December 2021. Organized international "Seismic Frontiers" workshop in October 2021. Kurokawa et al., G-cubed, 2022 used models of nitrogen cycling to constrain the timing of oceanic plate subduction. E.Thompson, Z. Liu, J. Tsuchiya, A. Campbell presented FeOOH Polymorphs in the Deep Earth: Combining Theoretical and Experimental Approaches at 2021 AGU.
【研究代表者】
【研究分担者】 |
土屋 旬 | 愛媛大学 | 地球深部ダイナミクス研究センター | 准教授 | (Kakenデータベース) |
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【研究種目】基盤研究(C)
【研究期間】2020-04-01 - 2023-03-31
【配分額】2,860千円 (直接経費: 2,200千円、間接経費: 660千円)