| 北天山山前乌鲁木齐—乌苏地区的构造变形特征 |
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| 引用本文： | 陶明信.北天山山前乌鲁木齐—乌苏地区的构造变形特征[J].新疆地质,1990(4). |
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| 作者姓名： | 陶明信 |
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| 作者单位： | 中国科学院兰州地质研究所 |
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| 摘 要： | 北天山山前乌鲁木齐—乌苏地区的构造变形,是在挤压兼左行剪切作用下形成的.根据皱皱构造的排列组合、地层组成、变形强度及构造线等特征,将本区划分为五个构造带,分属于两个构造系.其中小渠子构造带的成因与博格达山活动相关,属于另一个构造系.其四余个构造带组成独立的玛纳斯构造系,叠加在燕山期构造之上.
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| 关 键 词： | 北天山山前 乌鲁木齐—乌苏地区 构造变形 左列雁行褶皱 反“S”形 反向剪切 帚状构造 玛纳斯构造系 |
THE CHARACTERISTICS OF STRUCTURAL DEFORMATION IN URUMQI-USU REGION IN FRONT OF THE NORTHERN TIANSHAN MOUNTAINS |
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| Tao Mingxin.THE CHARACTERISTICS OF STRUCTURAL DEFORMATION IN URUMQI-USU REGION IN FRONT OF THE NORTHERN TIANSHAN MOUNTAINS[J].Xinjiang Geology,1990(4). |
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| Authors: | Tao Mingxin |
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| Abstract: | The characteristics of structural deformation in Urumqi-Usu region in front of the Northern Tianshan mountains are described in this paper and the mechanism of formation of structural belts analyzed. The results indicate that they were formed dy the actions of left-lateral shear and pressure movements. Based on the arrangement of fold structures, the components of strata, the degree of deformation and extending, direction of lineation, the structures are divided into 8 structural belts of two structural systems. The structural belts, except for Xiaoquzi structural belt which belongs to another adjacent system in the east, form an isolated structural system-Manas structural system, of which the dynamics is from the faults at its Southern limit, i.e. the activities of the Northern Tianshan mountains. |
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| Keywords: | The front of the Northern Tianshan mountains Urumqi-Usu region Characte-ristics of structural deformation left en echelon folds reversed S-shape antithetic shearing brush structure Manas system |
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