AMT方法在深部断裂构造识别中的应用--以南吕欣木金矿区为例

摘要

南吕欣木金矿区位于焦家金矿带南段寺庄大型金矿床的外围，受焦家断裂带控制，探查识别矿区深部断裂构造空间展布情况是至关重要的问题。鉴于矿区成矿地质条件，采用音频大地电磁（ AMT）法在欣木地区南端进行勘查试验，结合地质剖面资料进行对比分析，结果显示深部断裂构造反应较好，与地质吻合，说明AMT方法在该区可行有效，为下一步“攻深探盲”地质找矿工作提供地球物理依据。%Nanlv Xinmu gold deposit is located in the countyside of Sizhuang large gold deposit in southern Jiaojia metallogenic belt. It is controlled by Jiaojia metallogenic belt. It is very important to identify spatial distribution of deep fault structures in the mining area. Considering ore forming geological conditions, by using AMT exploration method, exploration has been carried out in the south of Xinmu area. Comparing with geological section data, it is regarded that the deep fault structures are corresponding well with actual geology. It is showed that AMT is practica⁃ble and effective in this area. It can provide geophysical references for developement in deep exploration.