Paleobiogeographic reconstruction of marine plankton diatoms in the Pacific Ocean
| Project/Area Number |
20540460
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | National Museum of Nature and Science, Tokyo |
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Principal Investigator |
TANIMURA Yoshihiro 独立行政法人国立科学博物館, 地学研究部環境変動史研究グループ, グループ長 (80141985)
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 太平洋 / 珪藻 / 古生物地理 / プランクトン / 古生物地理図 |
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| Research Abstract |
Relationships between the evolution of surface water circulation systems in the Neogene Pacific, and the temporal and spacial distribution of cosmopolitan plankton diatoms Thalassionema and Cavitatus species in eight DSDP-ODP cores, were studied. Subtropical Gyre, weakly developed in the Early Miocene and became stronger by the Late Miocene in association with closure of the Indonesian Seaway, highly probably caused nearly simultaneous extinctions of Cavitatus species in the South Pacific, and migration of some Thalassionema species to the south and to the north in the Pacific.
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Report
(6 results)
Research Products
(22 results)
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[Journal Article] Joint Haeckel and Ehrenberg Project "Reexamination of Haeckel and Ehrenberg Microfossil Collections as a Historical and Scientific Legacy" : a Summary.2009
Author(s)
Tanimura, Y., Tuji, A., Aita, Y., Suzuki, N., Ogane, K., Sakai, T.
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Journal Title
National Museum of Nature and Science Monograph 40
Pages: 1-5
Related Report
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[Journal Article] Ecological variations in diatom assemblages in the Paleo-Kathmandu Lake linked with global and Indian monsoon climate changes for the last 600,000 years.2009
Author(s)
Hayashi, T., Tanimura, Y., Kuwahara, Y., Ohno, M., Manpuku, M., Fujii, R., Sakai, H., Yamanaka, T., Maki, T., Uchida, M., Yahagi, Y., Sakai, H.
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Journal Title
Quaternary Research 72
Pages: 377-387
Related Report
Peer Reviewed
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[Journal Article] Paleoecological significance of laminated diatomaceous ooze during the middle-to-late Pleistocene, North Atlantic Ocaean (ODP Site U1304)2008
Author(s)
Shimada, C, Sato, T., Toyoshima, M., Yamasaki, M., Tanimura, Y.
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Journal Title
Marine Micropaleontology 69
Pages: 139-150
Related Report
Peer Reviewed
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