| 北京二十里长山-平谷盆地MT测量与地层含水性研究 |
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| 引用本文： | 肖骑彬,梁光河,徐兴旺,蔡新平,张宝林,王杰.北京二十里长山-平谷盆地MT测量与地层含水性研究[J].地质科技情报,2006,25(1):89-94. |
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| 作者姓名： | 肖骑彬 梁光河 徐兴旺 蔡新平 张宝林 王杰 |
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| 作者单位： | 1. 中国地震局地质研究所,北京,100029;中国科学院地质与地球物理研究所,北京,100029
2. 中国科学院地质与地球物理研究所,北京,100029 |
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| 摘 要： | 在北京东部的顺义二十里长山-平谷盆地进行了75个测点的大地电磁测量.通过应用TE与TM联合模式下的Occam以及Rebocc二维反演方法获得的电性结构模型,揭示了该区第四系覆盖层的厚度、基岩顶部电性分布特征、断裂构造以及含水岩溶发育情况.测量结果表明,测区第四系覆盖层普遍富水,二十里长山断裂两侧为2个差异明显的水文地质单元,断裂构造控制了基岩中含水岩溶的发育;在平谷盆地,含水岩溶明显受断裂构造控制,呈现出一种上下相通的"网络状"分布格局.
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| 关 键 词： | 大地电磁测深 二维反演 地层含水性 二十里长山-平谷盆地 北京 |
| 文章编号： | 1000-7849(2006)01-0089-06 |
| 收稿时间： | 2005-02-17 |
| 修稿时间： | 2005年2月17日 |
Magnetotelluric Survey and Water-Bearing Ability of Stratum across Ershili Changshan-Pinggu Basin,Beijing |
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| XIAO Qi-bin,LIANG Guang-he,XU Xing-wang,CAI Xin-ping,ZHANG Bao-lin,WANG Jie.Magnetotelluric Survey and Water-Bearing Ability of Stratum across Ershili Changshan-Pinggu Basin,Beijing[J].Geological Science and Technology Information,2006,25(1):89-94. |
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| Authors: | XIAO Qi-bin LIANG Guang-he XU Xing-wang CAI Xin-ping ZHANG Bao-lin WANG Jie |
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| Institution: | 1. Institute of Geology, China Earthquake Administration, Beijing 100029, China ; 2. Institute of Geology and Geophysics, CAS, Beijing 100029,China |
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| Abstract: | 75 magnetotelluric sites have been surveyed at Ershili Changshan-Pinggu Basin,Beijing. With Occam and Rebocc two-dimensional inversion under combined TE and TM mode,the stable and convergent electric structure models are obtained. From these models,we can get the Quaternary coverts thickness, the characteristic of electrical distribution at the top of the bedrock, the faults and the water-bearing karst. In the survey area,the Quaternary is rich of water; the two sides of the Ershili Changshan are two different hydrology and geology units. The faults control the water-bearing karst zone, especially in Pinggu Basin, while the water-bearing karst shows a network structure of underground-water distribution. |
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| Keywords: | magnetotelluric survey two dimensional inversion water-bearing ability of stratum Ershili Changshan-Pinggu Basin Beijing |
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