| 重磁电综合解释方法 在天津城市三维地质结构调查中的应用 |
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| 引用本文： | 李继军,汪启年.重磁电综合解释方法 在天津城市三维地质结构调查中的应用[J].物探与化探,2007,31(5):444-450. |
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| 作者姓名： | 李继军 汪启年 |
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| 作者单位： | 1. 天津市地质调查研究院,天津,300191
2. 安徽省勘查技术院,安徽,蚌埠,233000 |
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| 摘 要： | 天津作为城市地质调查的试点城市之一,在地质条件上具有其特殊性,属深覆盖地区,在深覆盖地区城市三维地质结构调查中,通过采用重、磁、电探测方法和不同的反演处理方法进行相互验证,综合解释,对查明地层主要界面的埋深、分布范围和厚度,断裂的平面展布状况和深部发育情况,隐伏岩体的分布状况等具有较好效果.通过Z14线剖面实例,介绍了重、磁、电综合分析解释方法的运用,可供类似地区的三维地质结构调查借鉴和参考.
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| 关 键 词： | 三维地质结构 深覆盖区 重磁电综合解释 城市地质调查 天津 |
| 文章编号： | 1000-8918（2007）05-0444-07 |
| 收稿时间： | 2007-04-27 |
| 修稿时间： | 2007-04-27 |
THE APPLICATION OF COMBINED GRAVITY-MAGNETIC-ELECTRIC METHOD TO THE URBAN THREE-DIMENSIONAL GEOLOGICAL STRUCTURE SURVEY IN TIANJIN |
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| LI Ji-jun,WANG Qi-nian.THE APPLICATION OF COMBINED GRAVITY-MAGNETIC-ELECTRIC METHOD TO THE URBAN THREE-DIMENSIONAL GEOLOGICAL STRUCTURE SURVEY IN TIANJIN[J].Geophysical and Geochemical Exploration,2007,31(5):444-450. |
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| Authors: | LI Ji-jun WANG Qi-nian |
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| Institution: | 1. Tianjin Institute of Geological Survey, Tianjin 300191, China ; 2. Anhui Institute of Geological Exploration Technology, Benbu 233000, China |
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| Abstract: | Tianjin,as one of the pilot cities in urban geological survey,possesses specific geological conditions and deep overlying strata.During the urban three-dimensional geological structure survey,especially in the deep coverage areas,the method in which combined gravity-magneticelectrical explanation and different inversions by mutual verification and combined explanation are adopted has proved to be very effective in detecting such phenomena as the depth,distribution and thickness of the main stratigraphic boundaries,the plane spread of the surface fractures and the deep-seated faults and the distribution of the concealed rock bodies.This paper deals with the application of combined gravity-magnetic-electrical explanation method exemplified by the cross section along Z14 line.This technique is of great reference value in the survey of three-dimensional geological structures in other cities. |
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| Keywords: | three-dimensional geological structure deep coverage area combined gravity-magnetic-electrical explanation method urban geological survey Tianjin |
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