| [an error occurred while processing this directive] |
世界地质 2018, 37(4) 1226-1230 DOI:
10.3969/j.issn.1004-5589.2018.04.022 ISSN: 1004-5589 CN: 22-1111/P |
|
|
|
|
本期目录 |
下期目录 |
过刊浏览 |
高级检索
[打印本页]
[关闭] |
|
| 地球物理 |
|
|
考虑激电效应的二维大地电磁测深正演 |
|
|
王恒1, 李桐林1, 陈汉波1, 王月2 |
|
|
1. 吉林大学地球探测科学与技术学院, 长春 130026;
2. 中国石油大学地球物理与信息工程学院, 北京 102249 |
|
|
摘要：
通常情况下地下岩矿石在通电的情况下，不仅表现出电磁效应，还表现出激电效应，在激电效应强烈的地区两者难以分离。笔者通过对均匀半空间中两种极化体的正演模拟，分析Cole-Cole模型参数对极化体的影响规律。模型正演结果表明：激电效应的存在会使视电阻率值增大，不同激电参数对视电阻率产生的影响不同，其中极化率对视电阻率的影响最大；极化率越大，视电阻率越大。 |
|
|
关键词：
MT
复电阻率
Cole-Cole模型
|
|
|
2D magnetotelluric forward modeling with induced polarization |
|
|
WANG Heng1, LI Tong-lin1, CHEN Han-bo1, WANG Yue2 |
|
|
1. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China;
2. College of Geophysics and Information Engineering, China University of Petroleum, Beijing 102249, China |
|
|
Abstract:
Under the common condition of electricity, the underground rocks show not only the electromagnetic effect, but also the excitation effect, which are difficult to separate in the areas where the excitation effect is strong. Through the forward modeling of two polarization bodies in uniform half space, the influence of parameters of polarization in the Cole-Cole model on the polarization bodies is analyzed. The forward model shows that existing of induced polarization increases the apparent resistivity, and the effects of different excitation parameters on apparent resistivity are different, of which the polarizability has the greatest influence on the apparent resistivity. The greater the polarizability, the greater the apparent resistivity. |
|
|
Keywords:
magnetotelluric (MT)
resistivity
Cole-Cole model
|
|
|
收稿日期 2018-04-26 修回日期 2018-07-06 网络版发布日期 |
|
|
DOI: 10.3969/j.issn.1004-5589.2018.04.022 |
|
|
基金项目:
国家重点研发计划（2017YFC0601606）. |
|
|
通讯作者: 李桐林(1962-),男,教授,主要从事电磁法理论与应用教学和研究.E-mall:lilaoshizh@163.com |
|
|
作者简介: |
|
作者Email: lilaoshizh@163.com |
|
|
| 参考文献： |
[1] Cole K S,Cole R H. Dispeision and absorption in dielectricsⅠ. alternating current characteristics[J]. The Journal of Chemical Physics, 1941,9:341-351.
[2] Coggon J. Electromagnetic and electrical modeling by the finite element method[J]. Geophysics, 1971, 36(1):132-155.
[3] 张赛珍,王式铭.影响矿化岩石和矿石极化率(η)值的因素及其作用规律[J].地质学报, 1974, 48(1):97-114. ZHANG Sai-zhen, WANG Shi-ming. Factors affecting the susceptibilities (η) of mineralized rocks and ores and their action rules[J]. Acta Geological Sinica, 1974, 48(1):97-114.
[4] 杨进,谭捍东,傅良魁.被动源激发极化法的野外试验结果[J].现代地质,1998,12(3):436-441. YANG Jin, TAN Han-dong, FU Liang-kui. Field test results of passive source excitation polarization method[J]. Geoscience,1998,12(3):436-441.
[5] 罗延钟,张胜业,熊彬.天然场源激电法的可行性[J].地球物理学报,2003,46(1):125-130. LUO Yan-zhong, ZHANG Sheng-ye, XIONG Bin. Feasibility of natural source induced polarization[J]. Chinese Journal of Geophysics,2003,46(1):125-130.
[6] 朱占升,谭捍东.考虑激电效应的二维大地电磁正演[J].工程地球物理学报,2011,8(6):433-437. ZHU Zhan-sheng, TAN Han-dong. 2D forward modeling of the MT signal incorporating IP effect[J].Chinese Journal of Engineering Geophysics, 2011,8(6):433-437.
[7] 周熙襄,钟本善.电法勘探数值模拟技术[M].成都:四川科学技术出版社,1996:55-201. ZHOU Xi-xiang, ZHONG Ben-shan. Numerical simulation technology for electrical prospecting[M]. Chengdu:Sichuan Science and Technology Press,1996:55-201. |
| 本刊中的类似文章 |
| 1．张明玉, 沈伟, 方石, 季焕成, 张雷, 张斌, 徐文秀.准噶尔盆地西北缘夏南斜坡区三叠系含油气性复电阻率法检测[J]. 世界地质, 2019,38(1): 162-174 |
| 2．孙晓东, 曾昭发, 王学刚, 于清水, 张建民, 刘卓.伊通盆地西北缘断裂乐山南段电磁异常特征与地质单元[J]. 世界地质, 2018,37(1): 250-258 |
| 3．苌云, 张艳辉, 翁爱华, 李斯睿, 李建平, 唐裕.CSAMT一维全频视电阻率反演[J]. 世界地质, 2017,36(3): 989-994 |
| 4．邹旭, 解国爱, 张庆龙, 李永祥.可控源音频大地电磁法 (CSAMT) 在安庆铜矿乌珠尖探区深部找矿中的应用[J]. 世界地质, 2016,35(2): 526-535 |
| 5．杨乃峰, 何英杰, 杨李汀.CSAMT 法在翠宏山铁多金属矿床深部找矿中的应用[J]. 世界地质, 2014,33(4): 880-888 |
| 6．杨柳, 唐振, 郝原芳.化学连续提取法对太湖沉积物中磷的各种形态测定[J]. 世界地质, 2013,32(3): 634-639 |
|
| Copyright by 世界地质 |
