| 西昆仑康西瓦断裂显微构造特征及其地质意义 |
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| 引用本文： | 刘强,杨坤光,张传林,董永观,郭坤一.西昆仑康西瓦断裂显微构造特征及其地质意义[J].矿物岩石,2003,23(3):26-30. |
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| 作者姓名： | 刘强 杨坤光 张传林 董永观 郭坤一 |
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| 作者单位： | 1. 中国地质大学地球科学学院,湖北,武汉,430074
2. 国土资源部南京地质矿产研究所,江苏,南京,210016 |
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| 基金项目： | 国土资源部中国地质调查局"新疆西昆仑成矿带成矿规律和找矿方向综合研究"项目(199910200247)部分成果 |
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| 摘 要： | 康西瓦断裂是西昆仑地区一条极其重要的构造缝合带。利用显微构造方法发现：康西瓦断裂明显经历三期构造演化。第一期为晚三叠世一早侏罗世的NE—SW向挤压,由古特提斯洋相继向北持续消减所造成,断裂除挤压碰撞外,还表现为韧性右行走滑;第二期为喜马拉雅运动早期的NE—SW向挤压,由印度板块向欧亚板块北东向俯冲所造成,断裂表现为明显左行平移,形成现代露头的宏观牵引;第三期为喜马拉雅运动晚期的伸展与快速隆升,最终形成现代地貌景观。
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| 关 键 词： | 康西瓦断裂 显微构造 石英组构 西昆仑地区 构造演化 |
| 文章编号： | 1001-6872(2003)03-0026-05 |
| 修稿时间： | 2003年3月10日 |
THE MICROSTRUCTURE FEATURE AND ITS GEOLOGICAL SIGNIFICANCE OF KANGXIWA FRACTURE ZONE, WEST KUNLUN |
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| LIU Qiang,YANG Kun-guang,ZHANG Chuan-ling,DONG Yong-guan,GUO Kun-yi .Faculty of Earth Sciences,China university of Geoscience,Wuhan,China, .Nanjing Institute of Geology and Mineral Resources,CAGS,Nanjing,China.THE MICROSTRUCTURE FEATURE AND ITS GEOLOGICAL SIGNIFICANCE OF KANGXIWA FRACTURE ZONE, WEST KUNLUN[J].Journal of Mineralogy and Petrology,2003,23(3):26-30. |
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| Authors: | LIU Qiang YANG Kun-guang ZHANG Chuan-ling DONG Yong-guan GUO Kun-yi Faculty of Earth Sciences China university of Geoscience Wuhan China Nanjing Institute of Geology and Mineral Resources CAGS Nanjing China |
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| Institution: | LIU Qiang~1,YANG Kun-guang~1,ZHANG Chuan-ling~2,DONG Yong-guan~2,GUO Kun-yi~2 1.Faculty of Earth Sciences,China university of Geoscience,Wuhan430074,China, 2.Nanjing Institute of Geology and Mineral Resources,CAGS,Nanjing210016,China |
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| Abstract: | Kangxiwar fracture zone is an important structural suture zone in west Kunlun.The structural evolution of Kangxiwa fracture zone can be subdivided to three stages, the first of which is that Kangxiwa fracture zone experienced NE-SW compression combined with dextral ductile shear during late Triassic-early Jurassic period due to the constantly northward subduction by paleo-Tethys.The second stage is that the Kangxiwa fracture zone was compressed along NE-SW direction because of the northeastward subduction of India plate to Eurasia plate during early Himalaya period and showed significant sinistral displacement.During late Himalaya period, Kangxiwa fracture zone experienced extension and rapid uplift and formed modern landscape finally. |
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| Keywords: | Kangxiwa fracture zone microstructure quartz fabrics West Kunlun Mts |
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