| Project/Area Number |
25400503
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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 |
Stratigraphy/Paleontology
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Nakazawa Tsutomu 国立研究開発法人産業技術総合研究所, 地質情報研究部門, 研究グループ長 (50357620)
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| Co-Investigator(Kenkyū-buntansha) |
UENO Katsumi 福岡大学, 理学部, 教授 (90241786)
KAWAHATA Hodaka 東京大学, 大気海洋研究所, 教授 (20356851)
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| Co-Investigator(Renkei-kenkyūsha) |
OKAI Takashi 独立行政法人産業技術総合研究所, 地質情報研究部門, 研究グループ長 (20356679)
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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 |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 造礁生物群集 / ペルム紀 / パンサラッサ / 秋吉石灰岩 / 気候期転換 / ゴンドワナ氷床 / 造礁生物 / 古生代 / 礁 / 気候期 / 微生物岩 / 地質学 / 古生物学 / 炭酸塩堆積学 / 層序学 / 地球化学 / 古環境 |
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| Outline of Final Research Achievements |
The Early Permian is an age when the climatic mode changed from icehouse to greenhouse conditions. At this time, the algal-dominated reef community including boreal elements was drastically succeeded by the warmer-water sponge-dominated reef community on the Panthalassan atolls. During the transitional stage, microbes exclusively flourished because of absence of major reef-building metazoans and formed abundant microbialites including large oncoids. Thus these reef communities on the Panthalassan atolls sensitively responded to the climatic change. The change in the reef ecosystem almost coincided with the timing of the Gondwanan deglaciation and a pulse of the Panthalassan superplume.
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