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西昆仑塔木一带山前推覆构造样式浅析
引用本文:欧健,李向前,潘明宝,贺新星,郭刚,许应石.西昆仑塔木一带山前推覆构造样式浅析[J].西北地质,2014(4):37-46.
作者姓名:欧健  李向前  潘明宝  贺新星  郭刚  许应石
作者单位:江苏省地质调查研究院,江苏南京210018
基金项目:中国地质调查局项目“新疆西昆仑1:5万J43E009017、J43E010017、J43E010018、J43E011017、J43E011018”(1212011220631)
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。

关 键 词:推覆构造  构造窗  叠瓦扇  构造时限  西昆仑  塔木

Structural Styles of the Piedmont Nappe of the West Kunlun Mountains
OU Jian,LI Xiang-qian,PAN Ming-bao,HE Xin-xing,GUO Gang,XU Ying-shi.Structural Styles of the Piedmont Nappe of the West Kunlun Mountains[J].Northwestern Geology,2014(4):37-46.
Authors:OU Jian  LI Xiang-qian  PAN Ming-bao  HE Xin-xing  GUO Gang  XU Ying-shi
Affiliation:(Geological Survey of Jiangsu Province, Nanjing 210018, China)
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 a- mong 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.
Keywords:nappe structure  nappe inlier  imbricate fan  tectonic duration  West Kunlun  Tamu
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