云南建水县苏租铅锌矿地质特征及找矿前景

THE GEOLOGICAL FEATURE AND PROSPECTING POTENTIALITY OF SUZU PB-ZN DEPOSIT IN JIANSHUI,YUNNAN

云南建水县苏租铅锌矿,矿体呈脉状、似层状主要沿断层构造破碎带分布,破碎带的发育程度直接控制了矿化规模及富集程度,构造控矿特征明显。矿体围岩均为泥盆系中统曲靖组第二段(D)2q2的白云岩,矿床类型属于中低温热液沉积-改造型铅锌矿床。重力异常显示该地区深部可能存在隐伏岩体,特殊的地质构造条件和广泛分布的Pb、Zn、Ag地化异常显示了该矿区中深部具有较好的找矿前景。

The orebody of Suzu Pb-Zn deposit in Jianshui,Yunnan is veined,stratoid mainly distributed along the fault zone.The metalogenesis scale and concentration degree are controlled directly by the fracture zone development degree,ore control of structure clear.The wall rocks of orebody all are Middle Devonian Qujing Formation Member 2(D)2q 2 dolomitite.It belongs to the middle-low T hydrothermal Pb-Zn deposit of sedimentary reformation type.The gravity anomaly shows there maybe the buried rockbody in the deep in this area.The special geological structure conditions and wide distribution of Pb,Zn,Ag geochemical anomaly indicate there is the good prospecting potentiality in the middle deep of this orefield.