Exemplified by the application of controlled source audio - frequency magnetotelluric sounding , this paper discusses the deep and periphery prospecting work with the resistivity sounding technique in the bajiazi lead and zinc mine of liaoning province 摘要以可控源音频大地电磁测深方法应用为例，讨论辽宁省八家子铅锌矿深部及外围电阻率测深找矿问题。
The inversion results of synthetic magnetotelluric sounding data are ideal , which indicates that the algorithm possesses advantages of expediting convergence , avoiding earliness and improving precision , and can be used in mt data analysis 对各种类型的大地电磁测深理论曲线进行计算，结果表明：采用实数编码混合遗传算法进行反演具有收敛速度快、解的精度高和避免出现早熟等优点，可用于大地电磁资料解释。
It can reach the purpose of improving precise . this thesis study the theory of tem measuring depth method , wavelet analysis and differential conductance imaging principle of tem measuring depth data , then the thesis brings forward the tem fast imaging technology based on the wavelet analysis 本文在详细论述了瞬变电磁测深法的基本理论、小波分析的基本理论以及瞬变电磁测深数据的微分电导成像原理的基础上，提出了基于小波分析的tem快速成像技术。
Because limited by the sampling channel of transient electromagnetic measuring depth fieldwork curve ( generally 20 ~ 40 channels ) , the smoothing degree of fieldwork curve is not very good , it make against the differential imaging treatment . in order to hold the continuous change characters of the curve and seek the voltage exactly , we use the thrice spline insert number function to reconstruct the fieldwork data ; 4 ) t ； 3 .由于受瞬变电磁测深实测曲线取样道的限制(一般为20 ~ 40道) ，实测曲线光滑程度较差，不利于微分成像处理，为了更好的把握曲线连续变化的特征及准确求导，采用了三次样条插值对实测数据进行重构;续
Based on an integrated analysis of the surface geological , aeromagnetic , gravity , mt and seismic data from the area of mangnai to serteng mountains in the western qaidam basin , the authors think that the qaidam basin is sandwiched between the north kunlun block and serteng tectonic belt , including two first - order tectonic units the qaidam block and the southern margin of the qilian block and four second - order tectonic units the northern margin of the north kunlun block , qaidam basin , serteng tectonic belt and suhai lake basin in the south of the qilian block 摘要通过柴达木盆地西部茫崖赛什腾山地表地质、航磁、重力、大地电磁测深和地震资料的综合分析，认为柴达木盆地夹持在昆北地块与赛什腾构造带之间，其中包括柴达木地块与祁连地块南缘2个一级构造单元和昆北地体北缘，柴达木盆地，赛什腾构造带和祁连地块南部的苏干湖盆地等4个二级构造单元。
In order to apply the basic principle of a new em method of exploration to practice and to provide some bases for developing equipment , the following three problems are analyzed and discussed : when the source signal is a sharp electromagnetic pulse , the output waveforms of the second - order band - pass filter of incident wave and reflected waves ; the inversion method by using the waveform of transient superposition of incident waveform - front and reflected waveform - fronts to get electric conductivity and thickness of strata ; and the key problem in the design of sounding equipment 摘要为能够实施电磁测深新方法的基本原理，并为研制探测仪器提供一些依据，分析和讨论了源信号为尖脉冲时，入射波与地层反射波通过二阶带通滤波器的输出波形；利用反射波与入射波前沿瞬态叠加的波形，反演地层的电导率和厚度的方法及与探测仪器有关的主要问题等内容。
Based on an integrated correlation and study of regional and deep geophysical data such as 12 magnetotelluric sounding profiles , 5 seismic profiles , tomographic imaging velocity structural data and gravity and magnetic field , the authors have formulated the 3d deep tectonic framework of the middle and lower yangtze valley and its neighborring areas in relation to the distribution of auriferous skarn deposits and copper ( associated with gold ) skarn deposits 作者借助12条大地电磁测深剖面、 5条地震剖面、层析成像速度结构资料、重磁场等区域的和深部的地球物理资料进行综合对比研究，给出长江中下游及其邻区的三维深部构造格架及其与含金夕卡岩矿床和铜伴生金夕卡岩矿床的分布关系。
