| Co-Investigator(Kenkyū-buntansha) |
三部 賢治 東京大学, 地震研究所, 助教 (10372426)
舘野 繁彦 東京工業大学, 地球生命研究所, 特任助教 (30572903)
鎌田 誠司 東北大学, 理学(系)研究科(研究院), その他 (30611793)
秋澤 紀克 東京大学, 大気海洋研究所, 助教 (40750013)
小木曽 哲 京都大学, 人間・環境学研究科, 教授 (60359172)
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| Budget Amount *help |
¥179,920,000 (Direct Cost: ¥138,400,000、Indirect Cost: ¥41,520,000)
Fiscal Year 2019: ¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2018: ¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2017: ¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2016: ¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
Fiscal Year 2015: ¥83,590,000 (Direct Cost: ¥64,300,000、Indirect Cost: ¥19,290,000)
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| Outline of Final Research Achievements |
This project aimed in understanding the elemental partitioning and light element stable isotope fractionation between Earth’s silicate mantle and metallic core using high-pressure high-temperature experiments and natural observations. High precision analytical facility for stable isotopes of hydrogen, carbon, oxygen and multiple sulfur isotopes suitable for high-pressure experimental products involving Fe-C-S and silicate phases were set up and results on elemental partitioning and stable isotope fractionation suggest carbon and sulfur are potential light elements in the Earth’s core. Furthermore, the interaction between core and mantle plays a significant role in modification of chemical composition of Earth.
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