WEKO3
アイテム
和泉山脈の和泉層群上部白亜系に混在する再堆積ジュラ紀・白亜紀前期放散虫
https://tokushima-u.repo.nii.ac.jp/records/2012359
https://tokushima-u.repo.nii.ac.jp/records/20123598f7d4235-c720-4898-a885-891a202bced5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nomsp_12_271.pdf (6.85 MB)
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| アイテムタイプ | 文献 / Documents(1) | |||||||||||||||||||||||
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| 公開日 | 2024-12-06 | |||||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | 和泉山脈の和泉層群上部白亜系に混在する再堆積ジュラ紀・白亜紀前期放散虫 | |||||||||||||||||||||||
| タイトル別表記 | ||||||||||||||||||||||||
| その他のタイトル | Jurassic and Early Cretaceous radiolarians reworked into the Upper Cretaceous Izumi Group, Izumi Mountains | |||||||||||||||||||||||
| 著者 |
橋本, 寿夫
× 橋本, 寿夫
× 香西, 武
× 石田, 啓祐
WEKO
1020
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| 抄録 | ||||||||||||||||||||||||
| 内容記述 | Jurassic and Early Cretaceous radiolarians were extracted from the fine turbidites of the Amphipyndax tylotus Zone of the Izumi Group, Izumi Mountains. Studied fine turbidites, composed of the sandy mudstones and pebbly mudstones, are intercalated in the channel-fill coarse clastic beds. Autochthonous radiolarian assemblages, characterized by Amphipyndax tylotus, are correlative with those of the Early Maastrichtian age. Co-occurred bivalves are coincide with the autochthonous radiolarian age. Among the allocthonous radiolarians, Tricolocapsa plicarum, T. conexa and Stylocapsa catenarum are Middle Jurassic indexes, and Transhsuum maxwelli group, Ristola dhimenaensis are Middle to latest Jurassic indexes. The other reworked materials whose final appearances are known within Middle Cretaceous include Archaeodictyomitra excellence, Wrangellium depressum, W. puga and Thanarla (?) conica. All of these Jurassic and Early Cretaceous species also occurred in the fine clastic sediments of the Mino-Tanba accretionary complexes. By microscopic observations of thin sections and etched slabs of the sediments, we confirm that the Middle Jurassic to Early Cretaceous radiolarians are extracted from the siliceous mudstone fragments included in the pebbly mudstones. Gravels and small fragments of chert-hornfels that contain crystallized radiolarian shells are also found from the studied pebbly mudstone. The mudstone clasts that contain Middle Jurassic and Early Cretaceous radiolarians were probably derived from the accretionary complexes of the Mino-Tanba Belt. The crystallized radiolarian-bearing gravels and clasts of chert-hornfels are possible to be derived from the thermal metamorphosed sediments of the Ryoke Belts. | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | radiolaria | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | reworked fossils | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | Upper Cretaceous | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | Izumi Group | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | Mino-Tanba Belt | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | Ryoke Belt | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 主題 | Provenance | |||||||||||||||||||||||
| 書誌情報 |
ja : 大阪微化石研究会誌, 特別号 巻 12, p. 271-282, 発行日 2001-12 |
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| 収録物ID | ||||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||
| 収録物識別子 | 02870436 | |||||||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AN10364962 | |||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||
| 出版者 | 大阪微化石研究会 | |||||||||||||||||||||||
| EID | ||||||||||||||||||||||||
| 識別子 | 62298 | |||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||
| 言語 | jpn | |||||||||||||||||||||||
