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上韮生川断層の左横すべり変位量の側方変化と転位モデル
https://tokushima-u.repo.nii.ac.jp/records/2010434
https://tokushima-u.repo.nii.ac.jp/records/20104342bfeb8d1-1f82-444e-b144-352fa522d922
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
jgeog_99_4_370.pdf (1.88 MB)
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| Item type | 文献 / Documents(1) | |||||||||||
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| 公開日 | 2022-11-02 | |||||||||||
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| 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 | |||||||||||
| 出版社版DOI | ||||||||||||
| 関連識別子 | https://doi.org/10.5026/jgeography.99.4_370 | |||||||||||
| 関連名称 | 10.5026/jgeography.99.4_370 | |||||||||||
| 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 | 上韮生川断層の左横すべり変位量の側方変化と転位モデル | |||||||||||
| タイトル別表記 | ||||||||||||
| その他のタイトル | Displacement Distribution Along the Kaminirogawa Fault and a Dislocation Model | |||||||||||
| 著者 |
村田, 明広
× 村田, 明広
WEKO
157
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| 抄録 | ||||||||||||
| 内容記述 | Lateral change of left-lateral strike-slip displacement along the Kaminirogawa fault was clarified by using a displacement-distance method. The Kaminirogawa fault is one of the major strike-slip faults in the Outer Zone of Southwest Japan, and measures 90 km in length on land-area from west of Tokushima to east of Kochi. The fault cuts and displaces the ENE-trending Sambagawa, Chichibu, Kurosegawa, Sambosan, and Shimanto Terrains. Eight values of left-lateral displacement along the fault were obtained by correlating geological markers on both sides of the fault, such as fold axial surface, faults, and bedding surface. They were plotted in the displacement-distance graph. The distance is measured along the fault from the arbitrally located reference point to the middle point between displaced geological markers on both sides of the fault. The graph shows that the displacement distribution is a triangle-type. The displacement is maximum, 12.9 km, at the center of the fault, and it decreases toward both northeast and southwest at a constant rate. The rate of displacement change is 0.206, which means about 2 km displacement increase along 10 km fault trace. Northeast and southwest fault tips of the fault are inferred to be situated at west of Tokushima, to the south of the MTL, and at 30 km south of Kochi in Tosa Bay respectively. Thus, the fault measures 125.2 km in total length. The Kaminirogawa fault is not a Riedel-shear type fault associated with the MTL. The displacement distribution of the triangle-type is well explained by a dislocation model of fault propagation and displacement increase. The model requires linear positive correlation between length and maximum displacement of strike-slip faults. Formerly clarified their correlation (RANALLI, 1977) is nonlinear positive, and is explained by the changes in the growth rates of displacement and length. Transform, transfer, and trench-linked transcurrent faults should be excluded in considering correlation between length and maximum displacement of strike-slip faults, because they abruptly decrease displacement at their fault “tips”. |
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| 書誌情報 |
ja : 地学雑誌 en : Journal of Geography 巻 99, 号 4, p. 370-381, 発行日 1990-08-25 |
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| 収録物ID | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 0022135X | |||||||||||
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| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 18840884 | |||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AN00322536 | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | 東京地学協会 | |||||||||||
| EID | ||||||||||||
| 識別子 | 61375 | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
