| 岷山隆起的构造地貌学研究 |
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| 引用本文： | 赵小麒,陈社发.岷山隆起的构造地貌学研究[J].地震地质,1994,16(4):429-439. |
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| 作者姓名： | 赵小麒 陈社发 |
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| 作者单位： | 国家地震局地质研究所，中国地质大学，四川省地质局 |
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| 摘 要： | 岷山隆起为一第四纪强烈抬升区，构成川西高原的西界。岷山隆起的东、西边界分别受岷江断裂与虎牙断裂的控制，为地震活动带，南部向龙门山构造带过渡。岷江断裂北段的第四纪活动始于距今２Ｍａ以前，为一逆走滑断层，观测到的左旋位移量为２．４ｋｍ，左旋滑动速率为１ｍｍ／ａ。岷江断裂控制了沿隆起西界分布的地震活动，包括１９３３年叠溪和１９６０年漳腊地震
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| 关 键 词： | 四川 岷山隆起 岷江断裂 虎牙断裂 构造地貌 |
TECTONIC GEOMORPHOLOGY OF THE MINSHAN UPLIFT IN WESTERN SICHUAN,SOUTHWESTERN CHINA |
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| Zhao Xiaolin, Deng Qidong, Chen Shefa.TECTONIC GEOMORPHOLOGY OF THE MINSHAN UPLIFT IN WESTERN SICHUAN,SOUTHWESTERN CHINA[J].Seismology and Geology,1994,16(4):429-439. |
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| Authors: | Zhao Xiaolin Deng Qidong Chen Shefa |
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| Abstract: | The NS-trending Minshan mountain in Northwestern Sichuan is an active Quatemay uplift.Its western and eastern boundaries are controlled by the active Minshan and Huya faults, respec-tively. The northern segment of Minshan fault has been active since 2 Ma ago. It is a reversefault with left－lateral strike-slip component. The strike-slip displacement is about 2.4 km with a1mm／a slip rate since 2 Ma, determined by matching offset placer gold mine with its motherlode. The Minshan and Huya faults are the major seismogenic structures in the region |
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| Keywords: | : Sichuan Minshan uplift Minjiang fault Huya fault Tectonic geomor phology |
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