| Project/Area Number |
21840069
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
NOZAKI Tatsuo Japan Agency for Marine-Earth Science and Technology, 地球内部ダイナミクス領域, ポストドクトラル研究員 (10553068)
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| Research Collaborator |
SUZUKI Katsuhiko 独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, チームリーダー (70251329)
KATO Yasuhiro 東京大学, 工学系研究科, 准教授 (40221882)
MATSUOKA Atsushi 新潟大学, 自然科学系, 教授 (00183947)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥2,704,000 (Direct Cost: ¥2,080,000、Indirect Cost: ¥624,000)
Fiscal Year 2010: ¥1,287,000 (Direct Cost: ¥990,000、Indirect Cost: ¥297,000)
Fiscal Year 2009: ¥1,417,000 (Direct Cost: ¥1,090,000、Indirect Cost: ¥327,000)
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| Keywords | Re-Os同位体 / 気化法 / MC-ICP-MS / チャート / 付加体 / 古海洋環境 / 地球化学 / 分析化学 / 古海洋環境変動 |
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| Research Abstract |
We developed a new analytical method for rapid determination of Re and Os isotopes using a MC-ICP-MS (NEPTUNE) and sparging method. As a result, sample throughput of Re-Os analyses became several times higher than that of the N-TIMS method. We applied this method to pelagic chert samples from the Inuyama Area, Mino Belt, and have succeeded to reconstruct the secular variations of marine Os isotope ratio through the Triassic period.
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