| 洮河九甸峡水利枢纽工程坝址区断裂活动性研究 |
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| 引用本文： | 李汉业,佟再三.洮河九甸峡水利枢纽工程坝址区断裂活动性研究[J].兰州大学学报(自然科学版),1997,33(2):108-114. |
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| 作者姓名： | 李汉业 佟再三 |
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| 作者单位： | 兰州大学地质系 |
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| 摘 要： | 通过对洮河九甸峡水利枢纽工程坝址区断裂构造的野外调查研究，应用断层泥中石英颗粒表面结构扫描电镜研究和＾１４Ｃ测年技术，确定坝址区断裂构造在晚更新世晚期有过明显的活动对坝址区区域稳定性产生重要的影响。
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| 关 键 词： | 断裂构造 水利工程 晚更新世 坝址区 甘肃 |
A Study on the Fault Activities in the Damsite of Hydro junction at Jiudianxia of the Tao River |
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| Li Hanye,Tong Zaisan.A Study on the Fault Activities in the Damsite of Hydro junction at Jiudianxia of the Tao River[J].Journal of Lanzhou University(Natural Science),1997,33(2):108-114. |
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| Authors: | Li Hanye Tong Zaisan |
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| Abstract: | In the light of the study results of the field survey of the faults in the damsite of hydro junction at Jiudianxia of the Tao River, and the study on the characteristics of the surface textures of the quartz grains from the fault clay with the keep of a scanning electron microscope and on the age of fault activity confirmed by carbon 14 dating method, a conclusion was drawn that the faults in the damsite had obvious reactivities in the late period of late Pleistocene(ca. 20 to 30 thousand years B.P.), which will have an important influence on the regional stability of the damsite. |
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| Keywords: | fault scanning electron microscope late period of late Pleistocene carbon 14 dating |
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