| 北祁连山西段构造单元划分及演化 |
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| 引用本文： | 傅景海.北祁连山西段构造单元划分及演化[J].甘肃地质学报,1995,4(2):62-69. |
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| 作者姓名： | 傅景海 |
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| 作者单位： | 甘肃有色地勘局四队 |
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| 摘 要： | 陶来运动使本区从华北古陆中解体出来，自成独立的构造体系。主裂谷阶段发生于中寒武世，奥陶纪形成沟弧盆体系。之后，早、晚泥盆世的碰撞造山作用使本区进入板内的浅海向陆相沉积盆地转化的阶段。中、新生代为陆内造山阶段。本区划分为３个Ⅲ级构造单元：河西走廊中、新生代断陷，北祁连早古生代弧盆系和北祁连元古代裂谷系；进而划分出１３个Ⅳ级构造单元。
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| 关 键 词： | 北祁连山西段 裂谷 岛弧 构造单元 |
THE DIVISION AND EVOLUTION OF TECTONIC UNITS OF THE WESTERN SECTION OF THE NORTHERN QILIAN Mts |
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| Fu Jinghai.THE DIVISION AND EVOLUTION OF TECTONIC UNITS OF THE WESTERN SECTION OF THE NORTHERN QILIAN Mts[J].Acta Geologica Gansu,1995,4(2):62-69. |
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| Authors: | Fu Jinghai |
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| Institution: | Fu Jinghai(No.4 Team,Bureau of Nonferrous Geological Exploration,Gansu Zhangye 734012) |
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| Abstract: | |
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| Keywords: | The western section in the northern Qilian Mts Rift Island arc Structu-ral unit |
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