| Project/Area Number |
63041034
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Institution | Chiba University |
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Principal Investigator |
NISHIDA Makoto Faculty of Science, Chiba University; Professor, 理学部, 教授 (40009428)
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| Co-Investigator(Kenkyū-buntansha) |
HAUSER Arturo National Service for Geology and Mineralogy; Chief Researcher, 主任研究官
NISHIDA Harufumi Faculty of Physical Education, International Budo University; Lecturer, 体育学部, 講師 (30164560)
YOSHIDA Akira Research Institute of Evolutionary Biology; Researcher, 研究員 (70090933)
UEMURA Kazuhiko Division Geology, Science Museum; Chief Researcher, 地学部, 主任研究官 (50000138)
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| Project Period (FY) |
1988 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥8,000,000 (Direct Cost: ¥8,000,000)
Fiscal Year 1989: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1988: ¥6,000,000 (Direct Cost: ¥6,000,000)
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| Keywords | Palynology / Patagonia / Petrified wood / Plant fossil / Plant succession / Nothofagus / South America |
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| Research Abstract |
This research was aimed to reconstruct the establishment process of the Recent flora in the southern part of Aouth America during the Cenozoic, especially focused on the phytogeographic history of Nothofagus (southern beech). During the 1989 field survey, more than 50 specimens of petrified woods, ca. 120 fossil leaves and palynologicalsamples have been collected from XI region of South Chile.
Taxonomic studies using these materials have provided many new informations and evidence to the paleobotany of southern South America. By now four species of petrified woods, including three new species have been recognized from Chile Chico samples. Equisetum and Nothofagus leaves have been identified from the Guadal Formation (Oligo-Miocene) and Rio Zeballos Formation (Miocene). About 815 palynomorphs including fern spores, gymnosperm and angiosperm pollen grains have been recovered from Paleocene sediments at Mina Ligorio Marquez. All these materials are still under detailed study.
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