胶东中朱车金矿区激发极化法找矿效果

The Prospecting Effect of Induced Polarization Method in Zhongzhuche Gold Field,Eastern Shandong Province

在胶东中朱车金矿区开展激电中梯扫面测量的基础上,对测区已获得的异常区进行激电测深和进一步评价,从而确定了异常源的位置和埋深,探讨了激发极化法在金矿区的找矿效果。运用时间域激发极化法激电中梯扫面测量后,根据视电阻率与视极化率等值线平面图,圈定了6个激电异常区,结合矿区地质特征,选择其中4个激电异常区进行激电测深。通过分析激电测深视极化率与视电阻率断面图特征,确定了潜在金矿(化)体的形态。经地表和钻探工程揭露验证,取得了较好的找矿效果,为山地工程提供了科学依据。

This study adopted the time domain induced polarization method.On the base of IP measurement in gradient array in Zhongzhuche gold field,Eastern Shandong Province,we evaluated IP anomalies by the IP sounding method in anomalous areas.The position and depth of mines could be estimated by exploration results.We discussed the prospecting effect of the time domain induced polarization method in gold field.After IP measurement in gradient array,based on the apparent charge ability and apparent resistivity contour maps,six high charge ability anomalous areas are discovered.Combining geological survey results,four anomalous areas are selected for vertical IP sounding.Based on the analyzing and interpreting results of IP anomalies and geological condition,the charge ability and resistivity sections are obtained.The positions of potential ore（mineralization）bodies are delineated.By surface and drilling engineering,good prospecting effect has been achieved.The sounding results offered scientific bases for the next surface and drilling works.