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首页> 外文期刊>Journal of Asian earth sciences >Intracontinental orogenic transition: Insights from structures of the eastern Junggar Basin between the Altay and Tianshan orogens
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Intracontinental orogenic transition: Insights from structures of the eastern Junggar Basin between the Altay and Tianshan orogens

机译：陆内造山带转换：从准tay尔盆地东部的阿尔泰山与天山造山带之间的构造中获得的见解

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摘要

Detailed subsurface structure of the eastern Junggar Basin is investigated using a large number of high-resolution two-dimensional reflection seismic profiles and well data. Our results reveal thrust faults, some of which are with strike-slip component, and fault-related folds dominating the subsurface structure of the study area. The thrust faults mainly show a divergent pattern towards the west and convergence towards the east. We divide these thrust faults and folds into three structural systems. The north thrust system, located in the north of the study area, is characterized by top-to-the southwest imbricate thrusts initiated from late Paleozoic. The central transpression system, dominating the central study area, mainly consists of thrust faults with visible strike-slip component, active from early Mesozoic until Cretaceous. The South thrust system includes top-to-the southeast thrusts in the southern part of the study area. The existence of these structural systems indicates that the eastern Junggar Basin underwent obvious intracontinental deformation in Mesozoic, probably due to the continuous convergence between the Altay and the Tianshan orogens after the main collision-accretion processes of the Central Asian Orogenic Belt.
机译：利用大量高分辨率的二维反射地震剖面和油井资料，对准Jung尔盆地东部的详细地下结构进行了研究。我们的研究结果揭示了逆冲断层，其中一些具有走滑分量，与断层有关的褶皱主导了研究区域的地下结构。逆冲断层主要表现为向西发散格局，向东汇聚。我们将这些逆冲断层和褶皱分为三个结构系统。位于研究区北部的北部逆冲系统的特征是晚古生代开始的自上而下的西南胶状逆冲。中央压制系统主导着中央研究区，主要由具有明显的走滑分量的逆冲断层组成，从早中生代到白垩纪一直活跃。南向推力系统包括研究区域南部的自上而下的东南向推力。这些结构系统的存在表明，准Jung尔盆地东部在中生代经历了明显的陆内变形，这可能是由于中亚造山带主要碰撞增生过程之后阿尔泰山与天山造山带之间的持续收敛。

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  • 来源
    《Journal of Asian earth sciences》 |2014年第1期|137-148|共12页
  • 作者

    Shujuan Zhao; Sanzhong Li; Xin Liu; Yanhui Suo; Liming Dai; Da Lou; Wenjun Sun; Tao Li; Xuebin Wang; Zhao Yang;

  • 作者单位

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    Dagang Oil-Gas Company, CNPC, Tianjin 300280, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

    College of Marine Geosciences, Ocean University of China, Qingdao 266100, PR China,The Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, PR China;

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  • 正文语种 eng
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  • 关键词

    Thrusts; Intracontinental deformation; Junggar Basin; Altay Orogen; Tianshan Orogen; The Central Asian Orogenic Belt; Mesozoic;

    机译：推力洲内变形;准gar尔盆地阿勒泰Orogen;天山造山带;中亚造山带;中生代;

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