Application and challenges of Magnetotelluric sounding technology in deep geological structure detection
大地电磁测深技术在深部地质结构探测中的应用与挑战

摘要

大地电磁测深技术（EMDC）作为一种重要的深部地质探测方法，在勘探地球深部结构中展现了其独特优势。通过利用电磁波传播特性，该技术能够精确地探测地下不同深度的电性信息，广泛应用于矿产资源勘探、环境监测及地震预测等领域。尽管EMDC技术在探测精度和覆盖范围上具有显著优势，但在深部地质结构探测中的应用仍面临诸多挑战，包括信号衰减、数据处理复杂性及地质背景的复杂性等问题。本文通过对这些挑战进行分析，提出了优化信号处理技术、提高探测深度和精度等解决方案，为该技术在深部地质勘探中的进一步应用提供了理论支持。

Abstract

As an important method for deep geological exploration, the Magnetotelluric Sounding Technology (EMDC) has demonstrated unique advantages in exploring the deep structure of the Earth. By utilizing the propagation characteristics of electromagnetic waves, this technology can accurately detect electrical information at different underground depths, and is widely applied in fields such as mineral resource exploration, environmental monitoring, and earthquake prediction. Although EMDC technology has significant advantages in detection accuracy and coverage range, its application in deep geological structure detection still faces many challenges, including signal attenuation, complexity of data processing, and complexity of geological background. By analyzing these challenges, this paper proposes solutions such as optimizing signal processing technology and improving detection depth and accuracy, providing theoretical support for the further application of this technology in deep geological exploration.