陕西白杨沟铅锌矿控矿因素及深部找矿预测

Ore controlling factors and deep prospecting prediction of lead-zinc deposit in Baiyanggou,Shaanxi Province

白杨沟铅锌矿是近年来凤太矿集区隐伏矿勘查的典型矿床,矿床勘查面临成矿后断层切割错动等问题,制约了深部勘查方向的选择。在建立区内构造格架、分析控矿因素和矿体展布规律的基础上,认为整个矿床在遭受了后期NE向断层带破坏后,致使断层带内的K1、K2矿体出露至地表,其侧伏向延伸矿体被次级断层切割分离成多个块体,不易寻找;断层带下盘的K3盲矿体受断裂带影响小,保存完好,具有较好的找矿前景。

Baiyanggou lead-zinc deposit is a typical representative of concealed deposit prospecting in fengtai mining area in recent years.However,the exploration of mineral deposits is faced with the problems of post-mineralization fault cutting dislocation,which restricts the selection of deep exploration direction.On the base that set up area structure shelf to analyze the ore control factors and ore body distribution,this paper argues that the deposit was damaged by a late NE-trending fault zone,which caused the exposure of upper plate K1 and K2 ore body of fault zone to the surface,but the deep extension ore body is secondary faults cutting separation and not easy to find,K3 concealed ore body of footwall in fault zone is well preserved and less affected by fault zone,so it has good prospecting potential.