可控源音频大地电磁测深在三道湾子金矿勘查中的应用

The Application Of Controlled Source Audio-Frequency Magnetotelluric Sounding In Sandaowanzi Gold Deposit

根据对三道湾子矿区Ⅲ号矿体294线、300线、306线可控源音频大地电磁测深实验剖面测量结果,认为矿区电阻率分层为四层,从地表向下依次为低电阻率层、高电阻率层、低电阻率层和高电阻率层。三条已知断面的控制,认为金矿体基本上出现在小于501Ω·m的低阻异常区内。因此厘定可控源音频大地电磁测深的低电阻率异常的下限强度为501Ω·m,该电阻率为卡尼亚电阻率,预测金矿应在此电阻率范围之内。

The controlled source audio-frequency magnetotelluric sounding profile measuring results of Ⅲ body in 294 line,300 line,306 line in the Sandaowanzi gold deposit shows that the resistivity is divided into four levels. Gold ore bodies in less than 501Ω · m low resistivity anomaly zone by control of the three known section.The lower limit of low resistivity anomaly intensity of the controlled source audio-frequency magnetotelluric sounding is 501Ω· m.The resistivity is Kania resistivity,We predicting gold mine should be within the range of resistivity.