| 应用于城市活断层调查的地震方法技术 |
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| 引用本文： | 徐明才,高景华,刘建勋,荣立新.应用于城市活断层调查的地震方法技术[J].中国地震,2005,21(1):17-23. |
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| 作者姓名： | 徐明才 高景华 刘建勋 荣立新 |
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| 作者单位： | 中国地质科学院地球物理地球化学勘查研究所,河北省廊坊市金光道84号,065000 |
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| 基金项目： | 国土资源部重点科技项目 (D2 0 0 2 0 0 8)资助 |
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| 摘 要： | 用地震方法探测城市直下型活动断裂是一种不可替代的勘探技术。地震方法能够准确确定断层的位置，但对于断层的地质年代问题，地震方法本身难以解决，然而结合钻孔资料和测区标准地质剖面，根据地震深度剖面，可以定性地(或半定量地)确定反射波组的地质年代。确定城市直下型活动断裂的上断点需要采用高分辨率的地震反射技术，为有效地确定深部断裂的几何特征，特别是确定深浅断裂构造之间的关系，反射地震方法优于折射地震方法。
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| 关 键 词： | 活动断裂 反射地震 高分辨率 地震探测 |
| 文章编号： | 1001-4683(2005)01-017-07 |
Application of the Seismic Method to Detecting Active Faults |
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| Xu Mingcai,Gao Jinghua,Liu Jianxun,Rong Lixin.Application of the Seismic Method to Detecting Active Faults[J].Earthquake Research in China,2005,21(1):17-23. |
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| Authors: | Xu Mingcai Gao Jinghua Liu Jianxun Rong Lixin |
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| Institution: | Xu Mingcai Gao Jinghua Liu Jianxun Rong Lixin Institute of Geophysical and Geochemical Exploration,Langfang 065000 Hebei,China |
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| Abstract: | The seismic method is a necessary exploration method for detecting active faults buried directly beneath major cities. The position of the faults can be determined accurately using the seismic reflection method, but geological ages of faults can not be determined by the method itself. According to seismic depth sections, the geological ages of reflection events can be ascertained qualitatively (or half quantitatively) combined with borehole data and standard geological profiles of the measuring areas. Detecting upper terminal point of active faults buried directly beneath major cities has need of using the high-resolution seismic techniques. The reflection method is better to the refraction method for determining effectively geometric features of deep faults, determining particularly relation between deep and shallow faults. |
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| Keywords: | Active fault Seismic reflection High-resolution Seismic protecting |
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