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可控源音频大地电磁方法CSAMT(Application of Controllable Source Acoustic-frequency Magne-totelluric Method)是一种人工源频率域电磁测深方法,具有勘探深度大,分辨率高,工作效率高,尤其在地形复杂地区能有效地施工等优点,已广泛应用于地热水资源勘查、水文地质勘查、深部金属和非金属矿产勘查中。本文以利用可控源音频大地电磁法在赣西北部某地形复杂地区进行隐爆角砾岩型钨矿体和石英脉型钨钼矿体勘探为例,在简要介绍CSAMT方法的基本特点以及数据采集和处理的基础上,结合区域地质资料对勘探区CSAMT资料进行了地质推断解释,圈定了勘探区的构造以及目标岩体的分布情况,为地质分析以及钻孔布置提供了可靠的物探证据。
CSAMT (Application of Controllable Source Acoustic-frequency Magne-totelluric Method) is an artificial source frequency domain electromagnetic sounding method with high exploration depth, high resolution and high working efficiency, especially in complex terrain The region can effectively construction, etc., has been widely used in geothermal water resources exploration, hydrogeological exploration, deep metal and non-metallic mineral exploration. In this paper, we use the controllable source audio-to-ground MT method for the exploration of cryptoexplosive brecciated tungsten ore bodies and quartz vein type tungsten-molybdenum ore bodies in a terrain complex area in northwestern Jiangxi Province. The basic characteristics and data of CSAMT method Based on the geological data collected and processed, the CSAMT data in the exploration area are geologically inferred and interpreted. The structure of the exploration area and the distribution of the target rock mass are delineated, providing reliable geophysical evidence for geological analysis and drilling arrangement.