| 长江三峡地区地球物理异常带的地表地质特征 |
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| 引用本文： | 陈永成.长江三峡地区地球物理异常带的地表地质特征[J].华南地震,2000,20(1):61-65. |
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| 作者姓名： | 陈永成 |
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| 作者单位： | 中国地震局地震研究所,湖北,武汉,430071 |
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| 摘 要： | 通过对长江三峡地区（巴东－宜昌段）野外地质调查获得的实际资料研究，认为沿长江北西西向地球物理异常带在地不存在着相应的断层破碎带及裂隙密集带。地下深处与地球物理异常带相对应的基底断裂已切穿中、新生代沉积盖层，在地不形成一组北西西向断裂带，现代地震活动与这组断裂带有密切的关系。
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| 关 键 词： | 地球物理场 断裂带 长江三峡地区 地震地质 |
| 文章编号： | 1001-8662(2000)01-0061-05 |
| 修稿时间： | 1999-09-05 |
Features of surface geology of geophysical anomaly zone in the Yangtze River Three Gorges region |
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| CHANG Yong-cheng.Features of surface geology of geophysical anomaly zone in the Yangtze River Three Gorges region[J].South China Journal of Seismology,2000,20(1):61-65. |
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| Authors: | CHANG Yong-cheng |
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| Institution: | CHANG Yong-cheng
( Institute of Seismology , BSC , Wuhan 430071 , China) |
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| Abstract: | Based on the research of the data obtained from field geological investigations for the Yangtze River Three Gorges region (the section from Badong to Yichang ), it is considered that there are both the fracture zone and dense crevices zone on the earth 's surface respond to the NWW- trending geophysical anomaly zone along the Yangtze River. Therefore, the basement faults corresponding with the geophysical anomaly zone cuts through the superficial strata of Mesozoic - Cenozoic, so a group of the NWW- trending faults is formed on earth 's surface. The recent seismicity has a very close relation with those faults. |
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| Keywords: | Geophysical field Fracture zone Crack zone The Yangtze River Three Gorges region |
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