Late Cenozoic Thrust and Nappe Structure along the Minjiang Upstream: Evidence from a Drill Hole

详细信息   

• 责任者：Zhang Yueqiao (Key Laboratory of Neotectonic Movement and Geohazard ; Ministry of Land and Resources ; Beijing 100081 ; China) ; Li Hailong
• 刊名：Geological Review
• 出版年：2012
• 卷期：58(2)
• 关键词：上冲断层 ; upthrust ; 推覆构造 ; nappe structure ; 岷江 ; Minjiang River
• 页码：p.215-223
• 图表：7 illus., 28 refs.
• 分类号：0300
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

摘要

 
    

The Minjiang fault zone consists of two faults with different property: an early thrust fault and a late normal fault. Field survey found that remnants of lacustrine deposits possibly aged Early Pleistocene, develop along the western side of the Minjiang Upstream, western oft-com:office:smarttags" />Sichuan. The authors consider that the seismicity across the Minshan Mountains uplift seems to be not controlled by the Minjiang fault, but by the geometry of a deep décollement zone beneath the Minshan uplift. Such a thrust style may be the main deformation mechanism for late Cenozoic mountain building and fast uplift of the eastern margin of the Tibetan Plateau.