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英语翻译大地电磁法(MT)是一种应用广泛的地球物理方法.此方法是对天然交变电磁场产生的天然场源在地面上进行观测,这种场源

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英语翻译
大地电磁法(MT)是一种应用广泛的地球物理方法.此方法是对天然交变电磁场产生的天然场源在地面上进行观测,这种场源具有区域性乃至全球性的分布特征,从而来研究地下岩层的地电特征以及分布特征的一种有效的勘探方法.目前已经广泛应用于石油、天然气、地热勘探;监视地下深部岩石电阻率的变化等领域.
大地电磁法具有如下优点:省去了供电设备,有丰富的频谱,勘探深度大,能穿透高阻层,等值作用范围小.此外,由于大地电磁法所利用的电磁场是近于垂直地面入射的平面电磁波,入地后的电磁波也垂直地面传播,由它产生的电流线呈水平状.因此对电场分布起作用的是纵向电阻率而与横向电阻率关系不大,即与岩层非各向同性作用关系不大,故大地电磁法涉及的各层电阻率实际上是每一层的纵向电阻率.
本文以广东云浮地区的大地电磁资料为基础,通过SSMT2000、MT-EDITOR、EH4以及静校正的小程序对资料数据的处理(SSMT2000和MT-EDITOR将数据数据编辑建立一条平滑的视电阻率曲线,并将编辑后的数据转换成标准的EDI格式),应用EMAGE-2D软件进行一维、二维反演.最终分析测区资料的一维、二维剖面得到测区的地球物理资料,进而对地区地质进行解释.
关键词:大地电磁法,资料处理与反演,广东云浮地区
语法不能有错误
Magnetotelluric method ( MT ) is a widely used geophysical method. This method is the natural alternating electromagnetic field produced by natural source on the ground were observed, this source has regional and even global distribution, and thus to study the underground rock geoelectric characteristics and distribution characteristics of an effective exploration method. Now it has been widely used in petroleum, natural gas, geothermal exploration; monitoring deep underground rock resistivity changes in the fields.Magnetotelluric method has the following advantages: saving power supply equipment, has a wealth of spectrum, exploration depth, can penetrate the high resistivity layer, equivalent small range of action. In addition, as a result of magnetotelluric method by making use of the electromagnetic field is nearly perpendicular to the ground incident electromagnetic plane wave, the electromagnetic wave is perpendicular to the ground after transmission, the current line horizontal. So the electric field distribution of longitudinal and lateral resistivity resistivity is not, i.e. the strata and the non isotropic effect relationship is not, therefore the magnetotelluric method relates to each layer resistivity is actually in each layer of the longitudinal resistivity.According to the Yunfu region of Guangdong magnetotelluric data as the basis, through the SSMT2000, MT-EDITOR, EH4and static correction for a small program for data processing ( SSMT2000 and MT-EDITOR data editing data to establish a smooth apparent resistivity curve, and edited data is converted to the standard EDI format ), the application of EMAGE-2D software the one-dimensional, two-dimensional inversion. The final analysis of one-dimensional, two-dimensional area measured data profiles obtained by sensing area geophysical data, then the region geological interpretation.