2013 Fiscal Year Final Research Report
Appearance of the Cenozoic-type chemosynthetic communities and its paleoecological factors
| Project/Area Number |
23540546
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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 | Joetsu University of Education |
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Principal Investigator |
AMANO Kazutaka 上越教育大学, その他部局等, 副学長 (50159456)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 化学合成群集 / 新生代 / シロウリガイ / シンカイヒバリガイ / 暁新世 / 沈木群集 |
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| Research Abstract |
Vesicomyids and bathymodiolins which are characteristic taxa of the Cenozoic
chemosynthetic communities appeared in the upper bathyal and highly diversified communities with
thyasirids. The bathymodiolins spread geographycally to Japan during the late Eocene and the early Oligo- cene despite they appeared in the middle Eocene of North America. The Paleocene wood-fall commnunities have been fisrt discovered from the Katsuhira Formation, eastern Hokakido and do not include any bathy- modiolins. Aporrhaid gasrtopods flourished in the Creataceous in Japan have also been first found from thePaleocene Katsuhira Formation. From these, the Cenozoic-type chemosynthetic communities appeared after theextinction event at PETM.
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[Journal Article] A Paleogene deep-sea methane-seep community from Honshu, Japan, Palaeogeography2013
Author(s)
Amano, K., Jenkins, R.G., Sako, Y., Ohara, M. and Kiel, S
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Journal Title
Palaeoclimatology, Palaeoecology
Volume: vol.387
Pages: 126-133
DOI
Peer Reviewed
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