2013 Fiscal Year Final Research Report
Towards better calibration of the modern microfossil data in Osaka Bay, Japan against aquatic and terrestrial environments
| Project/Area Number |
24840028
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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 |
Stratigraphy/Paleontology
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| Research Institution | Kobe University |
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Principal Investigator |
KITABA IKUKO 神戸大学, 内海域環境教育研究センター, 助教 (60631710)
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| Project Period (FY) |
2012-08-31 – 2014-03-31
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| Keywords | 定量的古環境復元 / 海洋環境 / 気候 / 珪藻分析 / 花粉分析 / モダンアナログ / 化学分析 / 大阪湾 |
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| Research Abstract |
The difficulties in the microfossil-based paleoenvironmental reconstruction in coastal area derive from the relatively complex sedimentary processes. Aiming at establishing the method of reconstructing physical properties (e.g. salinity, water depth, water and atmospheric temperatures and precipitations), we carried out microfossil and chemical analyses of surface sediments as well as seawater observation in Osaka Bay. The diatom assemblage is primarily controlled by the organic matter content, salinity and physical settings of the site. The significant error associated with the quantitative climatic reconstruction using pollen data is attributed to the fact that the pollen assemblage occasionally reflects the non-climatic influence. The accuracy and precision of climatic reconstruction can be improved significantly by enhancing minor taxa.
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[Presentation] Possible Linkage between Geomagnetic Field2013
Author(s)
Kitaba I, Hyodo M, Katoh S, Dettman D. L, and Sato H
Organizer
Temperature and Monsoon : Implication of High-Resolution Magnetic and Climatic Data from a Sediment Core in Osaka Bay, Japan, 2013 AGU Fall Meeting
Place of Presentation
San Francisco, USA. (Poster)
Year and Date
20131209-13
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