| 龙门山中南段泰安寺-干沟-苍坪断裂构造特征及其地质意义 |
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| 引用本文： | 胡新伟,吴山,邓江红.龙门山中南段泰安寺-干沟-苍坪断裂构造特征及其地质意义[J].成都理工大学学报(自然科学版),2000,27(1):45-49. |
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| 作者姓名： | 胡新伟 吴山 邓江红 |
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| 作者单位： | 成都理工学院地质学系!成都610059 |
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| 基金项目： | 国家“九五”1∶ 5 0 0 0 0区域地质调查项目 |
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| 摘 要： | 泰安寺-干沟-苍坪断裂是龙门山前缘推覆构造带中南段主滑面,文章详细描述了该断裂在宏观和微观上的构造变形特征。据断裂带与飞来峰压覆及切割关系和ESR年龄,表明断裂的形成应早于飞来峰的就位,而飞来峰就位后断裂又有过再次的逆冲活动。断裂的主要活动期为喜马拉雅早期,而在喜马拉雅中晚期进一步对其进行改造。充分反映该断裂具多期次活动的脆性逆冲特征
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| 关 键 词： | 龙门山 推覆构造 构造岩 飞来峰 |
| 文章编号： | 1005-9529(2000)01-0045-05 |
| 修稿时间： | 1999-09-01 |
CHARACTERISTICS AND GEOLOGICAL SIGNIFICANCE OF TAIANSI GANGOU CANGPING FAULT IN THE MIDDLE AND SOUTHERN SECTOR OF LONGMEN MOUNTAINS,SICHUAN |
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| HU Xin wei,WU Shan,DENG Jiang hong.CHARACTERISTICS AND GEOLOGICAL SIGNIFICANCE OF TAIANSI GANGOU CANGPING FAULT IN THE MIDDLE AND SOUTHERN SECTOR OF LONGMEN MOUNTAINS,SICHUAN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2000,27(1):45-49. |
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| Authors: | HU Xin wei WU Shan DENG Jiang hong |
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| Institution: | HU Xin-wei
,WU Shan
,DENG Jiang-hong
(Chengdu University of Technology, China) |
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| Abstract: | This paper describes in detail the structural characteristics of the Taiansi Gangou Cangping fault macroscopically and microscopically, and distinguishes the fault is the main slip (decollement) plane in the middle and southern sector of the frontal nappe belt in Longmen Mountains. The research show that the formation of the fault is earlier than these klippen, but it is also a revived reverse fault after the klippen took themselves places from relationship between the fault and klippen, and the ESR age determination. The main active period of the fault is early Himalayan period . Then, the fault is remade in middle and late Himalayan period , showing the characteristics of brittle thrust in many times. |
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| Keywords: | Longmen Mountains nappe tectonics tectonite klippe |
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