| Project/Area Number |
20244084
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
SAKAMOTO Tatsuhiko 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, チームリーダー (90271709)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Saburo 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 技術研究副主任 (90359175)
OGURI Kazumasa 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 技術研究主任 (10359177)
IIJIMA Koichi 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 技術研究主事 (00392944)
OKADA Makoto 茨城大学, 理学部, 准教授 (00250978)
TAKAHASHI Kozo 九州大学, 理学(系)研究科(研究院), 教授 (30244875)
IKEHARA Minoru 高知大学, 教育研究部自然科学系 (90335919)
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| Research Collaborator |
TSUKAMOTO Sumiko Leibniz Institute for Applied Geophysics Geochronology and Isotope Hydrology
MURRAY Andrew Aarhus University, Riso DTU, Nordic Laboratory for Luminescence Dating, Department of Earth Sciences
SUGISAKI Saiko 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, ポストドクトラル研究員
ESPEJO Francisco 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 日本学術振興会外国人特別研究員
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥47,840,000 (Direct Cost: ¥36,800,000、Indirect Cost: ¥11,040,000)
Fiscal Year 2010: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2009: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2008: ¥31,200,000 (Direct Cost: ¥24,000,000、Indirect Cost: ¥7,200,000)
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| Keywords | 光ルミネッセンス / 年代測定 / 極域寒冷圏 / 古海洋学 / 海底堆積物 / オホーツク海 / ベーリング海 / 年代決定 / 高分解能 / 酸素同位体比 |
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| Research Abstract |
Precious dating of marine sediment core is essential for high-resolution reconstructionof the past environmental change. In this study, we introduced a new method ofoptically stimulated luminescence(OSL) dating on marine sediment cores obtainedfrom high latitude area where dating is relatively difficult because carbonate is rare orabsent. The OSL dating during 25 kyrs of the core from south-western Okhotsk Sea isconsistent with radiocarbon dating. The OSL dating during130 kyrs including the lastinterglacial period for the central Okhotsk Sea is consistent with oxygen isotopestratigraphy. These results unable us to obtain precious dating for high resolutionpaleoceanography.
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