Establishment of high-resolution Cretaceous chronostratigraphy and tephrochronology in Japan
| Project/Area Number |
25287130
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Tohoku University |
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Principal Investigator |
Takashima Reishi 東北大学, 学術資源研究公開センター, 准教授 (00374207)
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| Co-Investigator(Kenkyū-buntansha) |
NISHI Hiroshi 東北大学, 学術資源研究公開センター, 教授 (20192685)
YAMANAKA Toshiro 岡山大学, 自然科学研究科, 准教授 (60343331)
ORIHASHI Yuji 東京大学, 地震研究所, 助教 (70313046)
KURODA Jun-ichiro 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 研究員 (10435836)
MATSUBARA Takashi 北海道教育大学, 教育学部, 准教授 (30311484)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
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| Keywords | 白亜紀 / 地質年代 / 凝灰岩 / テフロクロノロジー / アパタイト / 年代尺度 / U-Pb年代 / 蝦夷層群 |
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| Outline of Final Research Achievements |
In order to establish high-resolution international Cretaceous chronostratigraphic framework, we studied 206Pb/238U zircon geochronology of the 30 tuff beds that occur in the Yezo Group, Hokkaido, Japan. The 206Pb/238U ages of tuffs in the Yezo Group show that Aptian-Campanian interval ranges from 120 to 84 million years ago. Furthermore, we extracted apatite phenocrysts from the tuff beds, and analyzed trace element chemistry of the apatites. Based on the contents of magnesium and chlorine in the apatites of the tuffs in the Yezo Group, we found four tuff beds that are traceable throughout Hokkaido.
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Report
(4 results)
Research Products
(47 results)
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[Journal Article] Middle to Late Pleistocene radiolarian biostratigraphy in the water-mixed region of the Kuroshio and Oyashio currents, northeastern margin of Japan (JAMSTEC Hole 902-C9001C)2014
Author(s)
Matsuzaki, K. M., Suzuki, N., Nishi, H., Takashima, R., Kawate, Y., Sakai, T.
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Journal Title
Journal of Micropaleontology
Volume: 33
Issue: 2
Pages: 205-222
DOI
Related Report
Peer Reviewed
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[Journal Article] Devonian-Carboniferous transition containing a Hangenberg Black Shale equivalent in the Pho Han Formation on Cat Ba Island, northeastern Vietnam2014
Author(s)
Komatsu, T., Kato,S., Hirata, K., Takashima, R., Ogata, Y., Oba, M., Naruse, H., Ta, O. H., Nguyen, P. D., Dang, H. T., Doan, T. N., Nguyen, H. H., Sakata, S., Kaiho, K., Koenigshof, P.
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: in press
Pages: 30-43
DOI
Related Report
Peer Reviewed
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[Journal Article] Paleoceanographic history of the Northwest Pacific Ocean over the past 740 kyr, discerned from radiolarian fauna2014
Author(s)
Matsuzaki, K. M., Nishi, H., Suzuki, N., Cortese, G., Eynaud, F., Takashima, R., Kawate, Y. and Sakai, T
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Journal Title
Palaeoclimatology, Palaeoecology
Volume: 396
Pages: 26-40
DOI
Related Report
Peer Reviewed
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[Journal Article] Cycladophora davisiana abundances as a paleoceanographic and stratigraphic tool in high latitude siliceous sediments2014
Author(s)
Matsuzaki, K. M., Nishi, H., Suzuki, N., Kawate, Y., Takashima, R., Sakai, T.
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Journal Title
Marine Micropaleontology
Volume: 106
Pages: 1-9
Related Report
Peer Reviewed
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[Journal Article] Lower Triassic mixed carbonate and siliciclastic setting with Smithian–Spathian anoxic to dysoxic facies, An Chau basin, northeastern Vietnam2014
Author(s)
Toshifumi Komatsu, Hajime Naruse, Yasunari Shigeta, Reishi Takashima, Takumi Maekawa, Huyen Dang, Tien Dinh, Phong Nguyen, Hung Nguyen, Gengo Tanaka and Masatoshi Sone
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Journal Title
Sedimentery Geology
Volume: 300
Pages: 28-48
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Cycladophora davisiana abundances as a paleoceanographic and stratigraphic tool in high latitude siliciceous sediments2014
Author(s)
Matsuzaki, K. M., Nishi, H., Suzuki, N., Kawate, Y., Takashima, R. and Sakai, T
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Journal Title
Marine Micropaleontology
Volume: 106
Pages: 1-9
DOI
Related Report
Peer Reviewed
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[Presentation] Integrated Stratigraphy and U-Pb ages of the Cretaceous Yezo Group, exposed in Hokkaido, Japan2014
Author(s)
Nishi, H., Takashima, R., Yamanaka, T., Orihashi, Y., Hayashi, K.
Organizer
The second International Symposium of IGCP 608，”Cretaceous Ecosystems and their responses to paleoenvironmental changes in Asia and Western Pacific”
Place of Presentation
東京
Year and Date
2014-09-04
Related Report
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[Presentation] High-resolution 187Os/188Os isotope stratigraphy and 206Pb/238U zircon geochronology reveal and verify the global occurrence of OAE 2: Yezo Group, Hokkaido, Japan2014
Author(s)
Du Vivier, A. D. C., Selby, D., Condon, D. J., Takashima, R., Nishi, H.
Organizer
The second International Symposium of IGCP 608，”Cretaceous Ecosystems and their responses to paleoenvironmental changes in Asia and Western Pacific”
Place of Presentation
東京
Year and Date
2014-09-04
Related Report
Invited
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[Presentation] Calcareous nannofossil biostratigraphy of the Cenomanian-Turonian Oceanic anoxic event 2 (OAE 2) record in California, USA2014
Author(s)
Magtoto, C. Y., Fernando, A. G. S., Takashima, R., Nishi, H., Tomosugi, T.
Organizer
The second International Symposium of IGCP 608，”Cretaceous Ecosystems and their responses to paleoenvironmental changes in Asia and Western Pacific”
Place of Presentation
東京
Year and Date
2014-09-04
Related Report
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