激发极化法在云南大宝山铜矿勘查中的应用效果

云南维西大宝山铜矿区通过近年的地质勘查,探明的铜资源量已达中型规模。文章介绍了激发激化法原理及采集参数,简述了激电中梯和激电测深两种物探方法在铜矿勘探中的综合应用。通过物探工作圈定了长约数千米的激电异常带,并选择了大宝山铜矿101、91、104剖面为实例进行异常解释推断,并结合钻孔资料对异常进行了验证。激发极化法的应用使该地区找矿评价取得了良好的效果。

Prospecting effect of induced polarization method in Dabaoshan copper deposit, Yunnan

The copper metal reserves of Dabaoshan copper deposit has reached medium-sized through recent exploration. The principle of the induced polarization and the acquisited parameters were firstly introduced,then, the application of the two geophysical prospecting methods, i.e., IP intermediate gradient and IP sounding method in the Dabaoshan copper deposit Weixi county, Yunnan, were brielfly described. An induced polarization anomalous zone with a total length more than one kilometer has been outlined. In addition, selecting section lines of S101,S91,S104 for conducting anomaly interpretation by test drilling work. The practical application by IP survey has achieved sounding exploration effect in the deposit area.