| 西昆仑山前冲断系的结构特征 |
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| 引用本文： | 肖安成,杨树锋,陈汉林,贾承造,魏国齐.西昆仑山前冲断系的结构特征[J].地学前缘,2000(Z2). |
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| 作者姓名： | 肖安成 杨树锋 陈汉林 贾承造 魏国齐 |
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| 作者单位： | 浙江大学地球科学系!杭州310027(肖安成，杨树锋，陈汉林)，塔里木油田分公司!新疆库尔勒841000(贾承造)，石油勘探科学研究院廊坊分院!河北廊坊065007(魏国齐) |
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| 基金项目： | 国家“九五”科技攻关资助项目!(96 111 0 1 0 1 0 5 ) |
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| 摘 要： | 西昆仑山前为一薄皮冲断构造系 ,按冲断系不同区段结构和变形样式的差异 ,由北而南可以将西昆仑冲断系分为以薄皮变形为主的北带和以厚皮变形为主的南带。北带进一步划分为 :帕米尔北缘弧形构造带、齐姆根构造带、柯克亚—桑株构造带和皮山—和田构造带 4个次一级构造带。其中 ,帕米尔北缘弧形构造带为显露型近东西走向展布的紧密的线性冲断褶皱带和断裂带 ;齐姆根构造带为受走滑与冲断作用复合影响的隐伏型盲冲走滑构造带 ;柯克亚—桑株构造带是以冲断作用为主的隐伏型盲冲构造带 ;皮山—和田构造带则是典型的显露型冲断推覆体。构造带的走向差异、边界条件的不同和空间上的制约是各构造带之间差异活动的原因。在每一个构造线变化的区段与邻近部位具有不同的结构 ,从而在空间上形成了较为复杂的冲断体系。
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| 关 键 词： | 西昆仑 冲断构造系 几何结构 |
STRUCTURAL CHARACTERISTICS OF THRUST SYSTEM IN THE FRONT OF THE WEST KUNLUN MOUNTAINS |
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| XIAO An\|cheng ,YANG Shu\|feng ,CHEN Han\|lin ,JIA Cheng\|Zao ,WEI Guo\|qi.STRUCTURAL CHARACTERISTICS OF THRUST SYSTEM IN THE FRONT OF THE WEST KUNLUN MOUNTAINS[J].Earth Science Frontiers,2000(Z2). |
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| Authors: | XIAO An\|cheng YANG Shu\|feng CHEN Han\|lin JIA Cheng\|Zao WEI Guo\|qi |
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| Institution: | XIAO An\|cheng 1,YANG Shu\|feng 1,CHEN Han\|lin 1,JIA Cheng\|Zao 2,WEI Guo\|qi 3 |
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| Abstract: | There exists a thrust system in the front of the West Kunlun Mountains. With the difference in structures and deformation styles in different units of thrusting system, the West Kunlun thrust system, from north to south, can be divided into the north belt where the thin deformation is dominant, and the south belt where the thick deformation is dominant. The north belt can be subdivided into the arc\|shape structural belt in the north edge of parmirs, the Qimugeng structural belt, the Koukeya\|Sangzhu structural belt and the Pishan\|Hetian structural belt. The arc\|shape structural belt in the north of parmirs is a visible, East\|West trending,linear close thrust fold belt and fault belt;the Qimugeng structural belt is a potential blind\|thrust strike\|slip structural belt affected both by strike\|slipping and by the thrusting;the Koukeya\|Sangzhu structural belt is mainly a thrusting, potential blind\|thrust structure;Pishan\|Hetian structural belt is a typically visible thrust nappe. The differences in trend, margin condition and the control of space are the reasons for the different actions in structural belts. There are different structures between the region with changing structural line and its near\|by region, thereby, the complex thrust belt is formed in space. |
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| Keywords: | West Kunlun Mountains thrust system geometry structure |
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