内蒙古克什克腾旗黄岗山锡铜矿激电测量方法应用分析

内蒙古克什克腾旗黄岗山锡铜矿区北部及中部为第四纪冰川遗迹,在植被极其发育的地表之下为冰渍物、残坡积物等组成的碎石层,厚度多大于3m,因此开展地表地质工作有一定的难度。为提高找矿效果,开展了1∶1万激电测量工作。通过对激电异常的查证分析,在DJH-1号激电异常南西侧边界,燕山早期似斑状中细粒黑云母二长花岗岩与两侧石英闪长岩、花岗斑岩的内、外接触带附近发现有多期次岩浆侵入,矿化蚀变强烈,目前共圈定锡矿体10个、铜矿体8个;圈定的矿体和发现的激电异常具有较好的对应性,为进一步开展地质勘查工作提供了重要的依据。

Analysis on Application of Induced Polarization Method in Huanggangshan Tin-copper Deposit in Keshiketeng County of Inner Mongolia

There are Quaternary remnants of glaciation in north and central part of Huanggangshan tin copper deposit in Keshiketeng County of Inner Mongolia.Gravel layers which were composed of residual slope sediments and ice pickles occurred under the surface which vegetation developed well.Its thickness is than 3m.Thus,it is difficult to carry out surface geological work in this area.In order to improve prospecting effect,induced polarization measurements with the scale of 1:10000 has been carried out.Through verification and analysis on IP anomalies,in the boundary of southwestern DJH-1 induced polarization anomaly,and the inside and outside contact zones of early Yanshanian porphyritic fine-grained biotite monzogranite and both sides of the quartz diorite rock and granite porphyry,multi-stage of magmatic intrusions have been found with strong mineralization and alteration.At present,10 tin ore bodies and 8 cooper ore bodies have been circled.The ore bodies which have been circled have good correspondence with the ore bodies found by induced polarization anomalies.It will provide an important basis for further geological exploration work.