| 北京地区浅层地下水和气的异常运移与唐山地震 |
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| 引用本文： | 石慧馨,蔡祖煌,高名修.北京地区浅层地下水和气的异常运移与唐山地震[J].地震学报,1980,2(1):55-64. |
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| 作者姓名： | 石慧馨 蔡祖煌 高名修 |
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| 作者单位： | 1. 北京地震队水化学组
2. 国家地震局地质研究所 |
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| 摘 要： | 研究了唐山地震及其强余震临震前,北京地区枯井喷气发响以及浅层地下水变浑和水位上升的特征和原因,论述了这些现象可能含有前兆信息的理由,并研究了异常的动力、机理、地质背景和物质来源,讨论了这些异常与唐山地震的关系以及研究地下水与地震关系的意义.由于未发现深部气体的大量喷涌,故认为这些异常现象反映了浅层地下水和气体的异常运移,是在统一的区域应力场作用下,由北京地区活动断层脉冲形式的附加构造应力场作用于一定水文地质结构的结果.认为深入研究地下水和气的异常运移,可能对地震预报有一定意义.
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ANOMALOUS MIGRATION OF SHALLOW GROUNDWATER AND GASES IN THE BEIJING REGION AND THE 1976 TANGSHAN EARTHQUAKE |
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| Affiliation: | 1. Hydro-Chemistry Group, The Seismological Brigade of Beijing;
2. Institute of Geology, State Seismological Bureau |
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| Abstract: | The character and cause of blowing out of gases and emission of sound from dry wells and of water becoming muddy and changing of level in water wells of the Beijing region immediately before the 1976 Tangshan Earthquake and its strong aftershocks are investigated. These phenomena, taken as possible precursors of the earthquakes as well as the motivating force, mecllanism, geological background and material sources of the anomalous migration are discussed. Besides, the paper also deals with the relation between these anomalies and the Ta-ngshan earthquake and the significance of the study of groundwater as far as earthquake prediction is concerned.No gaseous gushing from great depth in considerable quantities appeared so that migration should be regarded only as the migration of shallow groundwater and gases. This is referred to the consequence of the action on certain hydrogeologiteal structures of an impulse-like extra tectonic stress field on the active faults in the Beijing region under an unified regional stress field. The present authors suppose that further studies of the anomalous migration of groundwater and gases possibly may be fruitful to earthquake prediction work. |
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