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A preliminary study of the sedimentary petrography of coarse clastic deposits in the Da Nang-Khe Sanh shear zone, central Vietnam
http://hdl.handle.net/10091/297
http://hdl.handle.net/10091/2979bec88fb-5bb8-4d14-9252-beae6213f2bf
名前 / ファイル | ライセンス | アクション |
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KJ00004161878.pdf (2.0 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-10-15 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A preliminary study of the sedimentary petrography of coarse clastic deposits in the Da Nang-Khe Sanh shear zone, central Vietnam | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
著者 |
Yoshida, K
× Yoshida, K× Sugawara, M |
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信州大学研究者総覧へのリンク | ||||||
氏名 | Yoshida, K | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.umThOUkh.html | |||||
出版者 | ||||||
出版者 | 信州大学理学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of the Faculty of Science Shinshu University 39:25-38(2005) | |||||
書誌情報 |
Journal of the Faculty of Science Shinshu University 巻 39, p. 25-38, 発行日 2005-03-30 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The ductile deformation belt in the Da Nang-Khe Sanh shear zone is the one of the NW-trending fault zone developing in the central Vietnam. This belt mainly comprises undeformed Jurassic sedimentary rocks, granite, gneissose metamorphic rocks, serpentine, and schistose rocks originated from the Paleozoic with extensive faulting. The A Lin Formation comprising undeformed conglomerate, sandstone, andesite, felsic tuff, and tuffaceous mudstone is distributed in the Da Nang-Khe Sanh shear zone and is designated to the Upper Permian formation. Its distribution is narrow and restricted to the NNW-trending shear zone, wherein the sedimentary mode is considered as a fault-bounded basin fill. The preliminary study of the clastic composition of the A Lin Formation reveals the derivation from volcanic and metamorphic terranes comprising andesite, rhyolite, psamitic schist, quartz mica schist and mylonite. This suggests that the provenance of the A Lin Formation is correlated to the metamorphic rocks contiguous to the depositional basin. The petrographic characteristics of the metamorphic rock fragments in the sandstone are consistent with the gneissose granitic complex, which is adjacent to the basin and was dated as early Triassic with subordinate Jurassic-Cretaceous metamorphic age. These results lead to the inference that the A Lin Formation was deposited following the early Triassic metamorphic event. The deposition might be correctable to the Jurassic-Cretaceous tectonic movement, i.e., andesitic volcanism and reactivation of the shear zone. Although sufficient information on post-collisional crustal deformation of the Indochina Block during Mesozoic is not available, sedimentation in the NW-trending fault zone leading to the A Lin Formation provides significant information for a crustal deformation the in post-collisional stage. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0583-063X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00697923 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |