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四国東部の領石・物部川層群チャート礫と細粒砕屑岩から産した中・古生代放散虫化石
https://tokushima-u.repo.nii.ac.jp/records/2012331
https://tokushima-u.repo.nii.ac.jp/records/201233121dea87c-fe47-43f8-913e-36633176d514
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nomsp_10_217.pdf (10.8MB)
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| Item type | 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 | 四国東部の領石・物部川層群チャート礫と細粒砕屑岩から産した中・古生代放散虫化石 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| タイトル別表記 | ||||||||||||||||||
| その他のタイトル | Mesozoic and Paleozoic radiolarians from the chert pebbles and fine clastics of the Ryoseki and Monobegawa Groups in East Shikoku | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| タイトル別表記 | ||||||||||||||||||
| その他のタイトル | 領石・物部川層群チャート礫と細粒砕屑岩から産した放散虫化石 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 著者 |
石田, 啓祐
× 石田, 啓祐
WEKO
1020
× 橋本, 寿夫
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | Radiolarian fossils from the conglomerates and fine elastics in the Lower Cretaceous brackish and shallow-marine formations of the Kurosegawa Terrane in East Shikoku are studied with reference to their genesis and basement conditions. The Late Permian, Mid-Late Triassic and the Earliest Jurassic radiolarians are extracted from the chert pebbles in the conglomerates of the Lower Cretaceous Ryoseki and Monobegawa Groups. The Early, Middle and Late Jurassic and the Earliest Cretaceous Radiolarians are extracted from black mudstone pebbles, mudstone grains in the matrices, and the sandy mudstone beds of the groups. They are accompanied with autochthonous radiolarian and molluscan tests of the Barremian age. In the Chichibu Superterrane, the pelitic beds of the Torinosu Group and the equivalents commonly yield the Mid-Late Jurassic and Early Cretaceous radiolarian assemblages. The Group and its equivalents lie over the Triassic molluscan formations and the Paleozoic complex in the southern Kurosegawa Terrane. They also lie over the Mid-Late Jurassic accretionary prisms and melanges in the South Chichibu Terrane. Whereas, the Group and equivalents are never distributed in the North Chichibu Terrane that is composed of the Lower to Middle Jurassic accretionary complex. From the point of subducting oceanicplate stratigraphy, in the stratigraphic sequences of the North Chichibu Terrane, the lithofacies change from chert to detrital clastics in the Latest Triassic to Earliest Jurassic. Judging from the above-geological properties, the Upper Permian, Middle and Late Triassic and the Earliest Jurassic chert pebbles in the Ryoseki and Monobegawa Groups probably have originated from the chert-clastics sequences and/or complex of the North Chichibu Terrane. It also indicates the possibility that the Lower to lower Middle Jurassic accretionary complex of the North Chichibu Terrane was already cropped out as a fenster in the Early Cretaceous.However, the small-sized mudstone grains with radiolarian tests of the late Middle and Late Jurassic and the Earliest Cretaceous age probably originated from the Torinosu Group and its equivalents. The author indicates a possibility that the Torinosu Group and its equivalents were depositted widely in the northern Kurosegawa Terrane, as well as the southern Kurosegawa and the South Chichibu Terranes. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | radiolaria | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | reworked fossils | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Lower Cretaceous | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Kurosegawa Terrane | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | North Chichibu Terrane | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Ryoseki and Monobegawa Groups | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | East Shikoku | |||||||||||||||||
| 書誌情報 |
ja : 大阪微化石研究会誌, 特別号 巻 10, p. 217-235, 発行日 1997-02 |
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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 | |||||||||||||||||
| 収録物ID | ||||||||||||||||||
| 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 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| EID | ||||||||||||||||||
| 識別子 | 62307 | |||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
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| 言語 | jpn | |||||||||||||||||
