High-precision isotopic study of primitive meteorites

2014 Fiscal Year Final Research Report

• Project/Area Number: 24340137
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Geochemistry/Astrochemistry
• Research Institution: Okayama University
• Principal Investigator: YAMASHITA Katsuyuki 岡山大学, 自然科学研究科, 准教授 (50322201)
• Co-Investigator(Kenkyū-buntansha): TOMIOKA Naotaka 国立研究開発法人海洋研究開発機構, 高知コア研究所, 主任技術研究員 (30335418) ; NAGAO Keisuke 東京大学, 理学(系)研究科(研究院), 教授 (40131619) ; HIDAKA Hiroshi 広島大学, 理学(系)研究科(研究院), 教授 (10208770) ; YONEDA Shigekazu 国立科学博物館, 理工学研究部, 理化学グループ長 (60210788)
• Research Collaborator: YIN Qing-Zhu Department of Earth and Planetary Sciences University of California, Davis
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 地球化学 / 隕石 / 同位体

Outline of Final Research Achievements

Multiple-isotope study of primitive meteorites including chondrites and primitive achondrites was undertaken in order to shed light on the origin and evolution of early solar system planetary bodies. To achieve this goal, emphasis was given to technical development leading to high-precision isotope analyses using TIMS and MC-ICP-MS. Meteorites with distinct petrological and geochemical properties were investigated, and important isotope data leading to high-precision chronology of the early solar system objects were obtained.

Free Research Field

宇宙地球化学