Nitrogen geochemistry: Speciation of nitrogen in the deep earth from high pressure and high temperature experiments

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13600
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geochemistry/Cosmochemistry
• Research Institution: The University of Tokyo
• Principal Investigator: Kagi Hiroyuki 東京大学, 大学院理学系研究科(理学部), 教授 (70233666)
• Co-Investigator(Kenkyū-buntansha): 篠崎 彩子 名古屋大学, 環境学研究科, 学振特別研究員(PD) (80570506) ; 岡田 卓 東京大学, 大学院理学系研究科(理学部), 特任助教 (90343938) ; 佐野 有司 東京大学, 大気海洋研究所, 教授 (50162524)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 窒素 / 高温高圧実験 / マントル

Outline of Final Research Achievements

Nitrogen is a major element in the atmosphere and one of the very important elements for life. However, the budget ant behavior in the deep earth is unclear. In this research project, we synthesized mantle minerals using a multi anvil high-pressure apparatus and investigated concentrations of nitrogen. We found that the lower mantle can be an important nitrogen reservoir.

Free Research Field

地球化学、地球内部物質科学