| Project/Area Number |
26257212
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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 | 海外学術 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Isozaki Yukio 東京大学, 大学院総合文化研究科, 教授 (90144914)
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| Co-Investigator(Kenkyū-buntansha) |
石川 晃 東京大学, 大学院総合文化研究科, 助教 (20524507)
河合 研志 東京大学, 大学院理学系研究科(理学部), 准教授 (20432007)
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| Research Collaborator |
Bauert H. Geological Survey of Estonia, Dr
Poldvere A. Geological Survey of Estonia, Dr
張 興亮 西北大学, Prof
Kirschvink J. L. CalTech, Prof
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥39,780,000 (Direct Cost: ¥30,600,000、Indirect Cost: ¥9,180,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2016: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2015: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2014: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
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| Keywords | 顕生代 / 進化 / 多様化 / カンブリア紀 / オルドビス紀 / 絶滅 / 表層環境 / 動物多様化 / 層序 / 古地磁気 / 南中国 / 地磁気 / エストニア / 古生代 / 炭素同位体比変動 |
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| Outline of Final Research Achievements |
By intense field research in Estonia, S. China, and Mongolia, we collected numerous rock samples and analyzed their geochemical aspects. The following new results were obtained. 1) We discovered the largest (30 cm-long) bilaterian animal fossils from the lowermost Cambrian to prove the early appearance of large animals. 2) Five new fossil zones of SSF (small shelly fossil) were proposed to bring much higher resolution in analysis of extremely rapid animal diversification. 3) The end-Ordovician and end-Guadalupian (Mid. Permian) mass extinctions shared plural similarities in global phenomena, in particular global cooling, suggesting the common cause and processes of the two extinctions. These results were published in 30 articles in international refereed journals.
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