| 音频大地电磁法对断层分辨能力的正演模拟及其应用 |
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| 引用本文： | 田蒲源,李慧杰,朱庆俊.音频大地电磁法对断层分辨能力的正演模拟及其应用[J].地质学刊,2012,36(4):401-407. |
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| 作者姓名： | 田蒲源 李慧杰 朱庆俊 |
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| 作者单位： | 1. 中国地质调查局水文地质环境地质调查中心,河北保定,071051
2. 吉林省煤炭地质调查总院,吉林长春,130033 |
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| 基金项目： | 中国地质调查局地质调查项目“华北地方病严重区地下水勘查及供水安全示范”(1212011121149)资助 |
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| 摘 要： | 通过几个模型的正演模拟,在分析不同模型正演响应的TM模式Bostick一维反演断面特征的基础上,探讨了点距、点位、第四系低阻层对AMT法定位断层的影响以及AMT法对断层的位置、倾向、倾角、发育深度等特征的分辨能力。研究表明,在点位和点距布设合理的情况下,AMT法对断层倾向、发育平面位置的推断是可靠的。最后,通过AMT法在太行山区找水的应用实例,验证了正演模拟方法的实用性。
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| 关 键 词： | 音频大地电磁法(AMT) 断层空间形态 正演模拟 一维反演 点距 河北 |
| 收稿时间： | 2012/3/12 0:00:00 |
Forward modeling for fault resolution and its application by audio magnetotelluric method |
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| TIAN Pu-yuan
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LI Hui-jie
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ZHU Qing-jun.Forward modeling for fault resolution and its application by audio magnetotelluric method[J].Jiangsu Geology,2012,36(4):401-407. |
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| Authors: | TIAN Pu-yuan LI Hui-jie ZHU Qing-jun |
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| Institution: | 1(1.Center for Hydrogeology and Environmental Geology,China Geological Survey,Baoding 071051,Hebei;2.Coal Geology Survey Institute of Jilin Province,Changchun 130033,China) |
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| Abstract: | Through forward modeling of several models, and on the basis of analysis the response of TM mode Bostick section features of 1D inversion cut surface characters, the authors discussed the influence of dot pitch, point location, and Quaternary low resistivity layer on the localized fault by AMT and the resolution capability on the location, dips, dip angle, developmental depth and other characteristics by AMT. Studies showed that in the case of reasonable point location and dot pitch, the inference of fault orientation, developmental plane position from AMT was reliable. Finally, through an application case with AMT method to find water in Taihang Mountain area, verified the usefulness of the forward modeling. |
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| Keywords: | Audio magnetotelluric (AMT) method Fault space shape Forward modeling 1D inversion Dot pitch Heibei |
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