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Université d'Orléans |  |
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Université d'Orléans | |
| HAL : insu-00724642, version 1 |
| DOI : 10.1111/ter.12002 |
| Fiche détaillée |  Récupérer au format |
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| Terra Nova 24, 6 (2012) 456-466 |
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| Is the Jurassic (Yanshanian) intraplate tectonics of North China due to westward indentation of the North China block? |
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| Michel Faure 1Wei Lin 2 |
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| (2012) |
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| The northern mountains of Beijing are the type locality of the Mesozoic Yanshanian orogen. Our structural study emphasizes the importance of dextral strike-slip for the formation of this intracontinental belt. The South- and North-directed thrusts are positive flower structures rooted in strike-slip faults. This transpressional tectonics developed from Late Triassic to Late Jurassic-Early Cretaceous through three deformation phases coeval with syntectonic sedimentation, separated by two transtensional episodes coeval with magmatism. The Late Jurassic-Early Cretaceous tectonic event is also recognized in several places of North China. Strike-slip faulting controls the deformation of the northern border of the North China block in the Yanshan-Yinshan belt. Simultaneously, East-directed thrusts and folds develop along N-S elongated ranges in Helanshan, Shanxi highlands and Taihangshan. The Jurassic tectonics of the North China Block is interpreted in a unitary way as the result of the westward underthrusting of the North China block below the Alashan block. |
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| 1 : | Institut des Sciences de la Terre d'Orléans (ISTO) |
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Université d'Orléans – CNRS : UMR7327 – INSU – Bureau de Recherches Géologiques et Minières (BRGM) |
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| 2 : | State Key Laboratory of Lithospheric Evolution |
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Institute of Geology and Geophysics, Chinese Academy of Sciences |
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| domaine | : | Planète et Univers/Sciences de la Terre/Tectonique Sciences de l'environnement/Milieux et Changements globaux |
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| Liste des fichiers attachés à ce document : | |||||
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| insu-00724642, version 1 | |
| http://hal-insu.archives-ouvertes.fr/insu-00724642 | |
| oai:hal-insu.archives-ouvertes.fr:insu-00724642 | |
| Contributeur : Nathalie Pothier | |
| Soumis le : Mercredi 22 Août 2012, 10:31:08 | |
| Dernière modification le : Lundi 12 Novembre 2012, 15:28:04 | |
