河南汝阳王坪西沟铅锌(银、镉)矿床地质找矿方法研究

Study on Geological Prospecting Method of Wangping Xigou Pb-Zn(Ag-Cd)Deposit in Ruyang,Henan Province

河南汝阳王坪西沟大型铅锌(银、镉)多金属矿床的发现手段是基于1:5万区域地质调查水系沉积物和1:1万次生晕测量成果,加之轻型、重型山地工程及钻探施工进行全面揭露的结果而实现的。该矿床自然类型系断裂蚀变破碎带控制的陡倾斜脉状矿床,因此采用勘探线方法实施勘查工作。本着先地表化探后地下工程揭露、平面上由稀到密的地质找矿原则,找矿成果圈出工业铅锌(银、镉)矿体估算为大型矿床,其中伴(共)生银、镉均为中型规模,镓为小型规模,矿床工业综合利用价值较大。

The discovery method of the large-scale lead-zinc(silver,cadmium)polymetallic deposit in Wangping Xigou,Ruyang,Henan Province is based on 1:50000 regional geological survey drainage sediment and 1:10000 secondary halo survey results,combined with light and heavy mountain engineering and drlling construction to fully expose the results.The natural type of the deposit is a steeply inclined vein deposit controlled by fault alteration fracture zone,so the exploration line method is adopted.Based on the geological prospecting principle of first surface geochemical exploration followed by underground engineering exposure and from thin to dense on the plane,the results of prospecting indicate that the industrial lead-zinc(silver,cadmium)ore bodies are estimated to be large deposits,in which the accompanying(common)silver and cadmium are medium scale and gallium is small scale,and the comprehensive utilization value of the deposit is high.