Paleoenvironments, paleogeography and basins of Cretaceous system in Japanese island arcs reconstructed from integrated stratigraphic correlation
Project/Area Number |
17K05688
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Stratigraphy/Paleontology
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Research Institution | Ibaraki University |
Principal Investigator |
Ando Hisao 茨城大学, 理工学研究科(理学野), 教授 (50176020)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 白亜紀 / 日本列島 / 古日本陸弧-海溝系 / 複合層序対比 / 古環境変動 / 古地理 / 堆積盆解析 / 古生態 / 層序対比 / 古環境 / 堆積史 / 古日本陸弧 / 前弧堆積盆 / 地質学 / 層位・古生物学 / 環境変動 |
Outline of Final Research Achievements |
Based on stratigraphy, sedimentary facies, sequence stratigraphy, biostratigraphy and radiometric dating, Cretaceous strata deposited in the Paleo-Japan continental arc-trench system are correlated over the Japanese island arcs on a wide scale. The paleoenvironments, paleogeography and paleoecosystems of the system during the Cretaceous time are reconstructed, taking the tectonic setting in the east Asia into account. Furthermore, several newly investigated topics of representative strata such as the Yezo, Kuji, Soma-Nakamura, Futaba, and Nakaminato groups in Northeast Japan are reported from the viewpoints of terrestrial and marine biota and their characteristics.
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Academic Significance and Societal Importance of the Research Achievements |
現在の自然豊かな日本列島の基盤である地質体は,古第三紀以降の被覆岩体を除くと,大半は白亜紀の堆積岩や火成岩,変成岩である.鉱物・燃料資源を含む日本の大地の恵みは白亜紀に形成されたといっても過言ではない.本研究は,日本列島が,もともとは古アジア大陸の一部として成立し,その後の地質学的歴史の中で列島になったという,いわば日本列島のルーツを辿る点で社会的にも影響力があり,学術的にも重要な示唆を与える.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] A new assemblage of plant mesofossils (late Coniacian - early Santonian; Upper Cretaceous) from the Tamagawa Formation, Kuji Group, in northeastern Japan.2020
Author(s)
Takahashi, M., Herendeen, P. S., Herrera, F., Hirayama, R., Ando, H., Sasaki, K. and Crane, P. R.
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Journal Title
Paleontological Research
Volume: 24
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Depositional ages and characteristics of Middle-Upper Jurassic and Lower Cretaceous lacustrine deposits in southeastern Mongolia2018
Author(s)
Hasegawa H., Ando H., Hasebe N., Ichinnorov N., Ohta T., Hasegawa T., Yamamoto M., Li G., Erdenetsogt, B., Heimhofer U., Murata T., Shinya H., Enerel G., Oyunjargal G., Munkhtsetseg O., Suzuki N., Irino T., Yamamoto K.
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Journal Title
Island Arc
Volume: 27
Issue: 3
Pages: 1-17
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] モンゴルの年縞湖成層から読み解く白亜紀中期“超温室期”の十年~千年周期の気候変動と太陽活動の気候影響2018
Author(s)
長谷川精, 安藤寿男, 勝田長貴, 村木綏, Ichinnorov N., 村山雅史, 山本鋼志, 太田亨, 長谷川卓, 山本正伸, 長谷部徳子, Heimhofer U., 池田昌之, 西本昌司, 山口浩一, 阿部文雄
Organizer
日本地球惑星科学連合2018年大会
Related Report
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[Presentation] Lower Cretaceous formations and paleontology in southeast Mongolia2017
Author(s)
Ichinnorov, N., Hasegawa, H., Ando, H., Nyamsambuu, O., Adiya, E., Gombosuren, T
Organizer
10th International Symposium on Cretaceous
Related Report
Int'l Joint Research
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