Development of sediment chronologies with amino acid radiocarbon dating
| Project/Area Number |
25247092
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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 |
Geochemistry/Cosmochemistry
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
Ohkouchi Naohiko 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 分野長 (00281832)
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| Co-Investigator(Kenkyū-buntansha) |
Yoneda Minoru 東京大学, 総合研究博物館, 教授 (30280712)
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| Co-Investigator(Renkei-kenkyūsha) |
Yokoyama Yusuke 東京大学, 大気海洋研究所, 教授 (10359648)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥43,420,000 (Direct Cost: ¥33,400,000、Indirect Cost: ¥10,020,000)
Fiscal Year 2015: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2014: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2013: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
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| Keywords | 放射性炭素年代 / アミノ酸 / 放射性炭素 / 堆積物 |
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| Outline of Final Research Achievements |
We have developed a method to isolate and purify amino acids from the natural materials including sediments for radiocarbon measurement. HPLC/fraction collection and the following recrystalization are useful methods for this purpose. Based on the method we have developed, we measured amino acids from known-aged natural samples. The obtained radiocarbon ages are quite consistent with the expected ages. The results suggested that the radiocarbon age of amino acids are useful for the chronological tool.
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Report
(4 results)
Research Products
(19 results)
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[Journal Article] Widespread collapse of the Ross Ice Shelf during the late Holocene.2016
Author(s)
Yokoyama, Y., Anderson, J. B., Yamane, M., Simikins, L. M., Miyairi, Y., Yamazaki, T., Koizumi, M., Suga, H., Kusahara, K., Prothro, L., Hasumi, H., Southon, J. R., and Ohkouchi, N.
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Journal Title
Proceedings of National Academy of Science, USA
Volume: 113
Issue: 9
Pages: 2354-2359
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Chlorophyll a specific Δ14C, δ13C, and δ15N values in stream periphyton: implications for aquatic food web studies.2015
Author(s)
Ishikawa, N. F., Yamane, M., Suga, H., Ogawa, N. O., Yokoyama, Y., and Ohkouchi, N.
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Journal Title
Biogeosciences
Volume: 12
Issue: 22
Pages: 6781-6789
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Varying responses to Indian monsoons during the past 220 kyr recorded in deep-sea sediments in inner and outer regions of the Gulf of Aden2015
Author(s)
Isaji, Y., Kawahata, H., Ohkouchi, N., Ogawa, N. O., Murayama, M., Inoue, K., and Tamaki, K.
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Journal Title
Journal of Geophysical Research-Ocean
Volume: 120
Issue: 11
Pages: 7253-7270
DOI
Related Report
Peer Reviewed / Open Access
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