大地电磁测深

基于DSSA的大地电磁测深资料处理解释系统的设计与实现

Design and Implementation of Data Processing and Interpretation System Based on DSSA in Magnetotelluric Sounding

应用遗传算法联合反演地震&大地电磁测深数据

Joint inversion of seismic and magnetotelluric sounding data using genetic algorithm

基于GIS技术的大地电磁测深数据库系统设计与实现

The design of MT database and its management system developed together with GIS technology

Matlab工具箱在大地电磁测深二维正演中的应用

Application of Matlab Toolbox in MT 2D Forward Modeling

VC与Fortran混合编程及其在大地电磁测深中的应用

Mixed-language programming of VC and FORTRAN and its application in magnetotelluric sounding

大地电磁测深资料的TE，TM极化视电阻率曲线识别研究

Identifying Apparent Polarized Resistivity Curves of TE and TM Mode from Magnetotelluric Sounding

对大地电磁测深（MT）资料，计算其变差函数；

Varied difference function is calculated for MT data .

在大地电磁测深法（MT）中，天然交变电磁场是其研究的主要对象。

For magnetotelluric ( MT ), its main research object is natural electromagnetic fields .

大地电磁测深（MT）曲线畸变是一个普遍存在的现象。

Curve distortion is common in MT survey .

高密度电阻率法反演用于大地电磁测深（MT）资料处理的可行性研究

Research of the Feasibility of High-density Resistivity Method Inversion Used in Magnetotelluric ( MT ) Sounding Data Process

基于Hilbert-Huang变换的大地电磁测深数据处理

Magnetotelluric Data Processing Based on Hilbert-Huang Transform in Oil and Gas Exploration

大地电磁测深（MT）法已被广泛地应用于含油气盆地的普查勘探中。

Magnetotelluric ( MT ) sounding has been widely used in the reconnaissance exploration of hydrocarbon & bearing basins .

本文介绍了基于VC平台的大地电磁测深交互式解释系统的结构、特点、实现方法以及所采用的关键技术等。

This paper mainly introduced the structure , feature , adopted key technique and realized method of VC platform based MT interactive interpretation system .

大地电磁测深法（MT）是以天然电磁场为场源研究地球内部电性结构的一种重要的地球物理手段。

Magnetotelluric ( MT ) sounding is an important geophysical means to study the Earth electrical structure using the natural EM field as its source .

采用VC与FORTRAN混合语言编程，使该系统充分利用大地电磁测深原有的资料处理、解释程序。

Using mix language of VC and FORTRAN to program , the original MT data processing and interpretation program can be fully used for the system .

利用地震剖面探测、地震CT和大地电磁测深等结果显示，在天池火山区地壳内存在低速、低密度及低阻异常体，该异常体可能表明壳内岩浆囊的存在。

The results of the seismic prospecting , seismic tomography and magnetotelluric sounding show that there is a low velocity , low density and low resistivity abnormal body , suggesting a magma chamber in the crust of this region .

对MT资料中的噪声提出了多种分析方法，从不同的角度系统地研究了大地电磁测深中噪声来源、频谱特征和对MT资料质量的影响规律。

Brought forward many methods to study the noise in MT data . Studied the noise source , frequence characteristic influence law to MT data systemically from uniform angle .

在可控源音频大地电磁测深（CSAMT）中，通过接收机同步记录发射频率的信号，以获取高质量的观测数据。

In Controlled source audio-frequency magnetotellurics ( CSAMT ), we often obtain data through recording transmitted signals by receivers simultaneously .

结合南水北调西线工程调水区桑日麻断裂的探测，就应用可控源音频大地电磁测深（CSAMT）进行断层深部特征的探测问题进行了分析和研究。

The feasibility problem of application of CSAMT to prospecting active fault in the West Route of South-to-North Water Transfer Project is studied .

EH4高频大地电磁测深数据的时频分析

Time-Frequency Analysis on The High Frequency Magnetotelluric Sounding Data

推导了EDA型层状各向异性介质大地电磁测深正演计算公式，对多种模型从不同的频率、测量方向计算了地表视电阻率曲线。

The forward calculation equations are derived for MT in the EDA type anisotropy media , and numerical simulation of apparent resistivity consists of several models with different frequency and observations is presented .

论文通过研究不同地区近万个实测大地电磁测深点资料，获得了MT方法中所利用的天然电磁场的特征，并与全球电磁场平均振幅进行了对比研究。

Analyse more than ten thousands sites actual measured Mt data have gotten the characteristic of natural electromagnetic field used in MT method , and research compare with the global average amplitude of electromagnetic field .

远参考大地电磁测深法（MT）能明显地改善常规MT观测资料的质量，已见报道的远参考MT的参考点设在距离常规MT观测点4.8km处。

Far-referential MT can obviously improve the quality of ordinary MT surveying data . The reference points of reported far-referential MT are located at a distance 4 . 8 km from ordinary MT survey points .

大地电磁测深法（MT）是利用频率范围很宽、广泛分布的天然变化电磁场进行深部地质构造研究的一种频率域电磁测深法。

Magnetotelluric sounding ( MT ) is a frequency domain electromagnetic sounding method , which is usually used for the research of deep geological structure through observing the natural electromagnetic field with a wide frequency range .

根据地磁感应矢量和昌黎的大地电磁测深曲线推测，这个异常可能属于DV型CA，其走向近于东西向。

According to the induction vectors and the magneto-telluric sounding curves of Changli , the strike of the anomaly is in an east-west direction , and it seems to belong to the " Directional Variation Type " .

首先介绍一维介质情况下的IRC理论，导出大地电磁测深电磁波反射函数，此函数由电磁波上行波与下行波的比值表示；

First the paper introduce the IRC theory in 1-D medium , deduced electromagnetic reflection function of MT that represented by ratio between upgoing and downgoing electromagnetic waves ;

大地电磁测深法（MT）属于电磁法勘探中的频率域方法，利用天然交变场源对地球深部岩石的电性参数进行研究。

Magnetotelluric sounding ( MT ) is one of the electromagnetic exploration methods which belong to frequency domain . The natural alternating field source is used to study electrical parameters of rocks in deep earth with this method .

通过几十年的发展，大地电磁测深（MT）法的正演数值模拟技术已经取得了很大的进步，在地质解释中大地电磁观测资料可以提供很多参数供其使用。

Forward numerical simulation technologies of magnetotelluric sounding ( MT ) data are developing rapidly , and have made great progress in recent decades . In geological interpretation , magnetotelluric data can provide a lot of parameters useful .

七·五计划期间，在扬子板块北缘地带所作地震测深（DSS）和大地电磁测深（MTS）成果揭示了该地带壳（慢）岩石圈结构，提供了分析古生代盆地形成演化的深部地质依据。

Deep seismic sounding and magnetotelluric sounding data revealed the crustal - mantle lithosphere structure on the northern margin of Yangtze plate and provided deep geological evidence for analysis of formation and evolution of the Palaeozoic basins .

理论和实践都表明，该反演方法比同步阵列大地电磁测深（SAMT）和连续电磁剖面法（CEMP）等MT方法的效果更佳。

The theory and the practice show that the inversion method has better results than synchronized array MT sounding ( SAMT ) and continuous electromagnetic profiling ( CEMP ) .