Comprehensive analyses of volatiles in the Earth's interior using SIMS

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03751
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Economic geology
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: SHIMIZU Kenji 国立研究開発法人海洋研究開発機構, 高知コア研究所, 技術研究員 (30420491)
• Co-Investigator(Kenkyū-buntansha): 伊藤 元雄 国立研究開発法人海洋研究開発機構, 高知コア研究所, グループリーダー代理 (40606109) ; 上野 雄一郎 東京工業大学, 理学院, 教授 (90422542)
• Research Collaborator: ITO Shoichi ; USHIKUBO Takayuki ; HAMADA Morihisa ; MATSUURA Fumihiro
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 揮発性物質 / SIMS / 火山ガラス / メルト包有物 / 地球内部物質循環

Outline of Final Research Achievements

The deep volatile cycles particularly water is indispensable for understanding the dynamics and chemical evolution of the Earth interior. However the systematic analytical method for volatile in rock samples are not well established in the solid sample, so it was far too far to elucidate its full view. In this study, we established analyses using a secondary ion mass spectrometer (SIMS) for concentration of volatile elements (water, carbon dioxide, fluorine, chlorine, chlorine and sulfur) and isotopic ratios (hydrogen, sulfur) in a least degassed deep submarine volcanic glass and a small melt inclusion incorporated in the magmatic minerals crystallized in deep crustal region. We are applying these analyses to the volcanic glasses at various tectonic setting and we are expecting to bring new development to elucidation of the deep volatile cycles of the Earth interior.

Free Research Field

地球化学