西昆仑塔木一带山前推覆构造样式浅析
Structural Styles of the Piedmont Nappe of the West Kunlun Mountains
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摘要: 通过大量野外地质调查以及构造剖面测制工作,根据构造样式和变形特征,将西昆仑塔木一带山前推覆构造带,由南西往北东划分为5个带,变形程度依次降低.通过对卡克巴西阿格孜构造窗的调查,显示本区域至少存在2期推覆构造活动:第一期发生在晚古生代末期,具后展式特征;第二期发生于晚新生代开始,显示出前展式特征.Abstract: Plenty of field work and tectonic section measures have been carried out in the study area. According to tectonic and deformation characteristics, 5 tectonic zones are recognized among the nappe tectonics of western Kunlun, with the degree of distortion comes down from southwest to northeast. Researches of Kakebaxi'agezi nappe inlier show at least two-stage nappe tectonic activities in this area: end of late Palaeozoic and after late Cenozoic, which are characterized by piggyback and overstep propagation respectively.