Search for evidence of impact in the Paleozoic and Mesozoic bedded cherts in Japan
Project/Area Number |
26707027
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Geology
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Research Institution | Kumamoto University |
Principal Investigator |
Onoue Tetsuji 熊本大学, その他の研究科, 准教授 (60404472)
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Research Collaborator |
EBIHARA Mitsuru 首都大学東京, 大学院理工学研究科, 教授
NOZAKI Tatsuo 海洋研究開発機構, 海底資源研究開発センター, 研究員
SATO Honami 海洋研究開発機構, 海底資源研究開発センター, 日本学術振興会特別研究員
SUZUKI Katsuhiko 海洋研究開発機構, 海底資源研究開発センター, 研究開発センター長代理
YAMASHITA Katsuyuki 岡山大学, 大学院自然科学研究科, 准教授
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥24,440,000 (Direct Cost: ¥18,800,000、Indirect Cost: ¥5,640,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
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Keywords | 天体衝突 / 三畳紀 / チャート / 絶滅 / 放散虫 / 地質学 / 地球化学 / 層位・古生物学 |
Outline of Final Research Achievements |
This study investigated the extraterrestrial matter in the Permian to Jurassic bedded chert sequences from the Mino Belt, central Japan. A large impact event was detected in the Upper Triassic bedded cherts using platinum group elements (PGE) and osmium (Os) isotope ratio as a tracer. The relatively flat CI-chondrite normalized patterns of the least mobile PGEs (Ir, Ru, and Rh) and the Ru/Ir ratio determined by linear regression analysis suggest that a chondritic impactor is the source of the PGE anomalies preserved in claystone samples from the study sections. The chondritic impactor of the suggested size (3.3-7.8 km in diameter) implies that a large amount of debris and/or climatically active gasses (e.g., sulfur oxides) would have been released from the impactor, which would have had a marked effect on the environment. An analysis of patterns of radiolarian extinction reveals a high extinction rate in the 1 Myr interval after the impact event.
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Report
(4 results)
Research Products
(62 results)
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[Journal Article] Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa.2016
Author(s)
Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y., Matsuoka, A.
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 29609-29609
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Groundwater helium anomaly reflects strain change during the 2016 Kumamoto earthquake in Southwest Japan2016
Author(s)
Sano, Y., Takahata, N., Kagoshima, T., Shibata, T., Onoue, T., Zhao, D.
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 37939-37939
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Paleoecology, biogeography, and evolution of reef ecosystems in the Panthalassa Ocean during the Late Triassic: insights from ree limestone of the Sambosan Accretionary complex, Shikoku, Japan2016
Author(s)
Peybernes, C., Chablais, J., Onoue, T., Escarguel, G., and Martini, R.
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 457
Pages: 31-51
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Sedimentary PGE signatures in the Late Triassic ejecta deposits from Japan: Implications for the identification of impactor2016
Author(s)
Sato, H., Shirai, N., Ebihara, M., Onoue, T., Kiyokawa, S.
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 442
Pages: 36-47
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Paleoenvironmental changes across the Carnian/Norian boundary in the Black Bear Ridge section, British Columbia, Canada2016
Author(s)
Onoue, T., Zonneveld, J.-P., Orchard, M. J., Yamashita, M., Yamashita, K., Sato, H., Kusaka, S.
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 441
Pages: 721-733
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Oceanic Anoxic Event at the Carnian/Norian Boundary Interval in the Black Bear Ridge Section, British Columbia, Canada2016
Author(s)
Onoue, T., Zonneveld, J-P., Orchard, M., Yamashita, K., Sato, H., and Kusaka S.
Organizer
Goldschmidt Conference
Place of Presentation
Yokohama
Related Report
Int'l Joint Research
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[Presentation] Marine Osmium Isotope Record in the Upper Triassic Deep-Sea Deposits from Japan: The Middle to Upper Norian Transition2016
Author(s)
Sato, H., Nozaki, T., Onoue, T., Kimura, J-I., Chang, Q., Takaya, Y., Kato, Y., and Suzuki, K.
Organizer
Goldschmidt Conference
Place of Presentation
Yokohama
Related Report
Int'l Joint Research
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[Presentation] ガーナ/ベリミアン帯陸上掘削(GHB)速報: 古原生代の海洋底環境復元プロジェクト2016
Author(s)
清川昌一, 伊藤 孝, 池原 実, 山口耕生, 尾上哲治, 堀江憲路, 吉丸 慧, 三木 翼, Tetteh, G., Nyame, F.
Organizer
地球惑星連合大会
Place of Presentation
幕張メッセ国際会議場(千葉市)
Related Report
Int'l Joint Research
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[Presentation] An asteroid impact in the Late Triassic triggered mid-Norian radiolarian faunal turnover in the Panthalassa Ocean2015
Author(s)
Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y., Matsuoka, A.
Organizer
American Geophysical Union fall meeting
Place of Presentation
San Francisco
Year and Date
2015-12-16
Related Report
Int'l Joint Research
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[Presentation] Sedimentary signatures of a chondritic impactor for an Upper Triassic impact event2015
Author(s)
Sato, H., Onoue, T., Shirai, N., Ebihara, M., Nozaki, T., Suzuki, K., Kiyokawa, S.
Organizer
Goldschmidt Conference
Place of Presentation
Prague
Year and Date
2015-08-20
Related Report
Int'l Joint Research
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[Presentation] Carbon and oxygen isotope record from the Rhaetian interval at the Kardolína section, Slovakia2015
Author(s)
Onoue, T., Shirozu, H., Michalík, J., Yamashita, D., Kusaka, S.
Organizer
IAS 31st Meeting of Sedimentology
Place of Presentation
Krakow
Year and Date
2015-06-24
Related Report
Int'l Joint Research
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[Presentation] Extraterrestrial impact event recorded in the Late Triassic deep-sea deposits from Japan2014
Author(s)
Sato, H., Shirai, N., Ebihara, M., Nozaki, T., Suzuki, K., Onoue, T., Kiyokawa, S.
Organizer
AGU Fall Meeting
Place of Presentation
San Francisco
Year and Date
2014-12-19
Related Report
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[Presentation] Radiolarian faunal turnover and paleoproductivity changes in the Late Triassic Panthalassa Ocean: a possible effect of large impact event2014
Author(s)
Onoue, T., Sato, H., Ikehara, M., Takaya, Y., Nozaki, T., Fujinaga, K., Kato, Y., Uno, K.
Organizer
GSA Annual Meeting
Place of Presentation
Vancouver, Canada
Year and Date
2014-10-20
Related Report
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