2010 Fiscal Year Final Research Report
Change of sediment provenance around Lake Biwa, Western Japan : Did it occur along with Quaternary climate change?
| Project/Area Number |
20300294
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geography
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| Research Institution | Nara Women's University |
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Principal Investigator |
TAKADA Masashi Nara Women's University, 文学部, 教授 (60273827)
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| Co-Investigator(Kenkyū-buntansha) |
SOHMA Hidehiro 奈良女子大学, 文学部, 教授 (90196999)
TOYODA Shin 岡山理科大学, 理学部, 教授 (40207650)
TAKEMURA Keiji 京都大学, 大学院・理学研究科, 教授 (00201608)
YOKOYAMA Yusuke 東京大学, 海洋研究所, 准教授 (10359648)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 地形 / 第四紀 / 土砂供給 / 気候変化 / 琵琶湖 / ESR / ルミネッセンス |
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| Research Abstract |
ESR signal intensity from quartz included in the Lake Biwa 1400 meter sediment core seems to fluctuate periodically together with cyclic environmentchange. Characteristics of ESR and TL signal intensities suggest that the core sedimentsof ca. 900ka age seem to be supplied mainly from the bedrocks to the north, the east and the south of the core location and the Yasu River. Content of ^<10>Be in the sediments also suggests that environment of sediment provenance for the Lake Biwa 1400 meter sediment core had changed along with the geological sequence.
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[Journal Article] ESR dating of sedimentary quartz from two Pleistocene deposits using A1 and Ti-centers2009
Author(s)
H.Tissoux, Toyoda, S., Falgueres, C., Voinchet, P., Takada M., Bahain, J.-J.,Despiee, J.
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Journal Title
Geochronometria vol.30
Pages: 23-31
Peer Reviewed
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