| 龙门山及其邻区地球物理场与地震的关系 |
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| 引用本文： | 李渭娟,梁桂培,姚政生.龙门山及其邻区地球物理场与地震的关系[J].华南地震,1995(2). |
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| 作者姓名： | 李渭娟 梁桂培 姚政生 |
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| 作者单位： | 兰州地震研究所 |
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| 摘 要： | 龙门山及其邻区地处青藏高原东缘，地质构造上处于不同构造单元的交汇地区。龙门山断裂带由多条大型推覆构造组成，利用重力资料对该区深部构造进行了研究。计算中采用Ｐａｒｋｅｒ－Ｏｌｃｌｅｎｂｕｒｇ三维位场反演方法。根据反演结果，综合其它地球物理和区域地质资料，研究了该区的地球物理场和地震的关系。
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| 关 键 词： | 地球物理场，三维重力反演，深部构造，龙门山断裂带 |
THE RELATION BETWEEN GEOPHYSICAL FEILDS AND EARTHQUAKE IN LONGMENSHAN AND NEIGHBOUR REGION |
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| Li Weijuan, Liang Guipei, Yao Zhensheng.THE RELATION BETWEEN GEOPHYSICAL FEILDS AND EARTHQUAKE IN LONGMENSHAN AND NEIGHBOUR REGION[J].South China Journal of Seismology,1995(2). |
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| Authors: | Li Weijuan Liang Guipei Yao Zhensheng |
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| Abstract: | The east margin gravity gradient belt of the Qinghai- Tibet plateau divides the Chinese continent into the east and west part, differed in the geotectonic development history and the geophysical characteristics. The Longmenshan fracture zone consists of a few great nappe and is the boundary of different geological structure elements. We inversed the Moho surface, using the Parker's three dimension potential field method and adopting the crustal thickness gotten by artifical seismic sounding in Tianshui region. In conclusion, we studied the relationship between geophysical fetids and earthquakes. |
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| Keywords: | Geophysical feild Gravity inversion Deep Strueture Longmenshan fracture zone |
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