| 对西安地裂缝形成机制的几点新看法 |
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| 引用本文： | 李新生.对西安地裂缝形成机制的几点新看法[J].地球科学与环境学报,1994(2). |
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| 作者姓名： | 李新生 |
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| 作者单位： | 西安地质学院水工系 |
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| 摘 要： | 本文从鄂尔多斯周缘断陷带的形成历史及其周缘断裂系的活动方式入手，阐述了西安地区临潼─长安断裂的活动模式并说明了西安古地裂缝是该断裂的次级断裂，它控制了该地区的地裂活动，然后，对西安地区现今地裂缝活动幅度和速率提出了一些看法，指出西安地区地裂缝活动量大与断裂活动加速和抽水引起的地层不均匀压密有关。
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| 关 键 词： | 地裂缝，地面沉降，断裂 抽水 |
SOME NEW VIEW ON THE GENETIC MECHANISM OF XI'AN GROUND FRACTURES |
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| Li Xinsheng.SOME NEW VIEW ON THE GENETIC MECHANISM OF XI'AN GROUND FRACTURES[J].Journal of Earth Sciences and Environment,1994(2). |
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| Authors: | Li Xinsheng |
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| Institution: | Xi'an college of Geology |
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| Abstract: | Firstly, the movement mode of Lintong-Changan fault is expounded started with the developing history of the down-faulted basin belt around Ordos Massif and the moving pattern of their faults. Secondly, it is made clear that Xi'an historical ground fractures are the secondary faults of Lin-Chang fault and their movement are controled by the fault. Then the mechanism of larger moving amount and of faster moving velocity of Xi'an modern ground fractures are emphatically discussed. Finally, it is pointed out that larger moving amount is caused by the acceleration of fault movement and the difference pressing compact resulted from pumping ground water, and that the faster velocity relates to the rapid excretion of void water caused by pumping ground water. |
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| Keywords: | ground fracture groung subsidence fault pumping ground weater |
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