EH-4电磁系统用于金矿找矿的效果——以山东山后和甘肃阳山矿区为例

Application effect of EH-4 electromagnetic system in gold deposit finding: Taking example of Shanhou deposit in Shandong and Yangshan deposit in Gansu

StratagemEH - 4电磁系统是通过同时测量天然场源和人工场源激发的电场和磁场来计算电阻率 ,测量深度与不同频带相对应。频率较高的数据反映浅部地质特征 ,频率较低则反映较深地层的信息。该系统能在各种地形上测量获得电阻率二维断面。通过在山东山后、甘肃阳山金矿区的方法试验 ,证明了该系统具有探测构造深度大。

Stratagem EH-4 electromagnetic system can caculate the resistivity by measure the electric field and magnetic field stirred by nature field origin and artificial field origin, the depth of measurement is corresponding with different frequency zone. High frequency data reflect shallow geological character and low frequency data reflect deep geological character. EH-4 electromagnetic system can obtain two dimensional section of resistivity at all kinds of topography. The system has the character of deep structural survey and high resolution power by the experiment in Shandong Shanhou and Gansu Yangshan gold deposit.