High resolution dating of the marine terraces after the Middle Pleistocene around the ria coast, Japan
| Project/Area Number |
17K01237
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geography
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| Research Institution | Kogakkan University |
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Principal Investigator |
Kondo Reisuke 皇學館大学, 教育開発センター, 准教授 (30409437)
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| Co-Investigator(Kenkyū-buntansha) |
竹村 貴人 日本大学, 文理学部, 教授 (30359591)
宮入 陽介 東京大学, 大気海洋研究所, 特任研究員 (30451800)
坂本 竜彦 三重大学, 生物資源学研究科, 教授 (90271709)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 海成段丘 / pIRIR年代測定法 / リアス海岸 / 中期更新世 / 後期更新世 / 高分解能地形面編年 / 地形学 / 地質学 / 年代測定学 |
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| Outline of Final Research Achievements |
The marine terraces around the ria coast of the Japan islands often have unknown emerged age. Therefore, in this study, we apply the pIRIR dating method to marine terraces such as the ria coast, and aim to improve the resolution of the landform revolution of marine terraces formed after the Middle Pleistocene. In this study, we selected several regions where marine terraces develop around the ria coast as the study area.
As a result of field survey and pIRIR dating, age values from MIS 9 to MIS 5a were obtained in the study area, and the emerged age of the marine terraces since the Middle Pleistocene was clarified.
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| Academic Significance and Societal Importance of the Research Achievements |
海成段丘は，地域の隆起を示す地形であり，その地理的広がりや分布高度，そして離水年代を推定する研究が古くからなされている．地域の垂直的変異量を推定するためには海成段丘の正確な離水年代の算出が重要であるが，リアス海岸周辺では，被覆層やその中に挟在する鍵層の発見が困難であるので不明な点が多い．本研究の結果は，堆積物の絶対年代に基づきリアス海岸周辺における海成段丘堆積物の編年が可能であることが示されたので，pIRIR年代測定法を用いることで中期更新世以降の海成段丘の発達史を明らかにすることが可能であることが示された．
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] New division of landforms in Musashino Uplands, Tokyo2019
Author(s)
遠藤邦彦, 千葉達朗, 杉中佑輔, 須貝俊彦, 鈴木毅彦, 上杉 陽, 石綿しげ子, 中山俊雄, 舟津太郎, 大里重人, 鈴木正章, 野口真利江, 佐藤明夫, 近藤玲介, 堀 伸三郎
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Journal Title
The Quaternary Research (Daiyonki-Kenkyu)
Volume: 58
Issue: 6
Pages: 353-375
DOI
NAID
ISSN
0418-2642, 1881-8129
Year and Date
2019-12-01
Related Report
Peer Reviewed / Open Access
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[Journal Article] 大型植物化石群から復元した北海道北部猿払川湿原群の発達過程2018
Author(s)
矢野梓水, 百原 新, 近藤玲介, 宮入陽介, 重野聖之, 紀藤典夫, 井上 京, 横田彰宏, 嵯峨山積, 横地 穣, 横山祐典, 冨士田裕子
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Journal Title
植生史研究
Volume: 27
Pages: 17-30
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] The undatables: Quantifying uncertainty in a highly expanded Late Glacial - Holocene sediment sequence recovered from the deepest Baltic Sea basin - IODP Site M00632017
Author(s)
Obrochta, S.P., Andren, T., Fazeka, S.Z., Lougheed, B. C., Snowball, I., yokoyama, Y., Miyairi, Y., Kondo, R., Kotilainen, A.T., Hyttinen, O., Fehr, A.
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Journal Title
Geochemistry, Geophysics, Geosystems
Volume: 18
Issue: 3
Pages: 858-871
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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