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| 玉门塔尔湾北西向地貌陡坎成因探讨 | |
| 引用本文： | 许洪泰,闵伟,何文贵,葛孚刚.玉门塔尔湾北西向地貌陡坎成因探讨[J].东北地震研究,2012,28(1):63-68. |
| 作者姓名： | 许洪泰 闵伟 何文贵 葛孚刚 |
| 作者单位： | 1. 山东省地震工程研究院,山东济南,250014 2. 中国地震局地质研究所,北京,100029 3. 中国地震局地震预测研究所兰州科技创新基地,甘肃兰州,730000 |
| 摘 要： | 运用探槽开挖,揭露还原构造运动的方法,对沿塔尔湾断裂分布的地貌陡坎的形成过程进行了分析,得出了塔尔湾断裂的主要活动时期为早中更新世,现在地貌上的陡坎是外动力作用形成的,不是断裂活动形成的结论。 |
| 关 键 词： | 塔尔湾断裂 陡坎成因 风积作用 活动构造 |
THE DISCUSSION ON THE GENESIS OF TARWAN FAULT SCARP |
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| XU Hong-tai,MIN Wei,HE Wen-gui,GE Fu-gang.THE DISCUSSION ON THE GENESIS OF TARWAN FAULT SCARP[J].Seismological Research of Northeast China,2012,28(1):63-68. | |
| Authors: | XU Hong-tai MIN Wei HE Wen-gui GE Fu-gang |
| Institution: | 1.Shandong Institute of Earthquake Engineering,Shandong Jinan 250014,China; 2.Institute of Geology,China Earthquake Administration,Beijing 100029,China; 3.Earthquake Administration of Gansu Province,Gansu Lanzhou 730000,China) |
| Abstract: | By means of excavating the trial trench and exposing the tectonic movements,the forming process of the surface scarps has been analyzed,which are distributed along Tarwan fault.The results have showed that the main active period of Tarwan fault is early-mid Pleistocene.And the scarps in nowadays physiognomy were formed by outer dynamic,not the fault activities. |
| Keywords: | Tarwan fault genesis of scarp eolian deposit function active structure |
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