2011 Fiscal Year Final Research Report
Temporal and spatial variation of hermatypic coral assemblages during glacial-interglacial climate changes
| Project/Area Number |
21740371
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Kanazawa Gakuin University |
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Principal Investigator |
SASAKI Keiichi 金沢学院大学, 美術文化学部, 准教授 (50340021)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 造礁サンゴ / サンゴ礁 / 氷期 / 生物地理 / 気候変動 / 喜界島 |
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| Research Abstract |
To understand how hermatypic corals expanded/shrunk their geographical distribution ranges in response to the global climate changes during glacial-interglacial cycles, glacial coral reef deposits in Kikai Island of Ryukyu Islands, located near the northern limit of coral reefs, were collected by the shallow drillings. Lithologic and stratigraphic investigations of these reef deposits indicate that coral reefs were developed during the glacial low sea levels at 40-70 kyr B. P. and 140 kyr B. P. Further, taxonomic studies of fossil corals demonstrated that these glacial reefs were partly comprised of corals dominated in the modern temperate regions along the Japanese archipelago.
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[Presentation] Discovery and their significance of submerged reef rocks on the shelf off Kikai-jima Island, Kagoshima Prefecture2010
Author(s)
Matsuda, H., Arai, K., Inoue, T., Machiyama, H., Sasaki, K., Iryu, Y
Organizer
18th International Sedimentological Congress
Place of Presentation
Mendoza, Argentina
Year and Date
2010-09-27
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