| 音频大地电磁法与核磁共振法结合划分含水层的试验 |
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| 引用本文： | 于向前,赵义平,王明新,刘迪,王文婷,汪馨竹.音频大地电磁法与核磁共振法结合划分含水层的试验[J].吉林大学学报(地球科学版),2014,44(1):350. |
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| 作者姓名： | 于向前 赵义平 王明新 刘迪 王文婷 汪馨竹 |
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| 作者单位： | 水利部牧区水利科学研究所，呼和浩特010020 |
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| 基金项目： | 水利部“948”科技推广项目(201104) |
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| 摘 要： | 为提高应用地球物理方法划分含水层的准确性，提出将音频大地电磁法与核磁共振法结合运用的综合方法。运用该方法在内蒙古巴彦宝力格盆地某区开展野外试验，并将试验结果与该区域供水水文地质详查报告中的水文地质剖面图进行了比对。结果表明：①试验区100 m深度范围内，该方法所揭示的含水层深度、厚度分布与水文地质剖面图基本一致；②据该方法，介质岩性为泥岩、粉质黏土、粉土、气孔状玄武岩和砂砾时，其衰减时间分别为≤30、30～60、60～120、120～260和260～600 ms，据此得到的介质岩性分布与水文地质剖面图高度吻合；③该方法得到的含水层含水量变化与水文地质剖面图的涌水量变化规律一致。因此，运用该方法划分含水层具有很强的可行性，在生产实践中具有推广价值。
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| 关 键 词： | 含水层划分 音频大地电磁法 核磁共振法 巴彦宝力格 |
| 收稿时间： | 2013-07-08 |
Combination of Audio Magnetotelluric and Nuclear Magnetic Resonance Used to Aquifer Division |
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| Yu Xiangqian,Zhao Yiping,Wang Mingxin,Liu Di,Wang Wenting,Wang Xinzhu.Combination of Audio Magnetotelluric and Nuclear Magnetic Resonance Used to Aquifer Division[J].Journal of Jilin Unviersity:Earth Science Edition,2014,44(1):350. |
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| Authors: | Yu Xiangqian Zhao Yiping Wang Mingxin Liu Di Wang Wenting Wang Xinzhu |
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| Institution: | Institute of Water Resources Research in Pastoral Area， Huhhot010020，China |
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| Abstract: | The accuracy of geophysical prospecting methods was limited. A combination of the audio magnetotelluric method and the nuclear magnetic resonance method was applied to aquifer division, enhancing the accuracy. Series of field tests for this method were carried out in an area of Bayanbaolige basin,Inner Mongolia, and the test results were compared with the hydrogeological profiles of the detailed hydrogeological survey for this tested area. The main conclusions were as follows: ①The tested aquifer depth and thickness, within the depth of 100 m, were almost consistent with the hydrogeological profiles. ②Based on this method, the decay times for mudstone, silty clay, silt, vesicular basalt and gravel were considered to be ≤30, 30-60, 60-120, 120-260 and 260-600 ms,respectively. This was highly consistent with the hydrogeological profiles. ③The law of variation for aquifer water content was identical with that for water inflow represented in the hydrogeological profiles. Therefore, this method was feasible, and worthy to be promoted in production practices. |
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| Keywords: | aquifer division audio magnetotelluric nuclear magnetic resonance Bayanbaolige |
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