| 阿尔金断裂：几何学、性质和生长方式 |
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| 关键词:Altun (Altyn Tagh) fault thrust sequence propagation sinistral strikeslip mode of growth |
| 基金项目:原地质矿产部（项目批准号:86-06-207）；国家科委（项目批准号:96-915-06-04）；国土资源部大陆动力学开放实验室（项目批准号:9812） |
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| The Altun Fault: Its Geometry, Nature and Mode of Growth |
| The Altun (or Altyn) fault displays a geometry of overlapping of linear and arcuate segments and shows strong inhomo-geneity in time and space. It is a gigantic fault system with complex mechanical behaviors including thrusting,sinistral stike slip and normal slip. The strike slip and normal slip mainly occurred in the Cretaceous-Cenozoic and Plio-Quaternary respectively, whereas the thrusting was a deformation event that has played a dominant role since the late Paleozoic (for a duration of about 305 Ma). The formation of the Altun fault was related to strong inhomogeneous deformation of the massifs on its two sides (in the hinterland of the Alun Mountains contractional deformation predominated and in the Qilian massif thrust propagation was dominant). The fault experienced a dynamic process of successive break-up and connection of its segments and gradual propagation, which was synchronous with the development of an overstep thrust sequence in the Qilian massif and the uplift of the Qinghai-Tibet plateau. With southward propagation of the thrust sequence and continued uplift of the plateau, the NE tip of the Altun fault moved in a NE direction, while the SW tip grew in a SW direction. |
| CUI Jun-wen,ZHANG Xiao-wei,LI Peng-wu.2002.The Altun Fault: Its Geometry, Nature and Mode of Growth[J].Acta Geoscientica Sinica,23(6):509-516. |
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