巧家县小海子铅锌矿成矿地质条件及找矿模式

THE GEOLOGICAL CONDITION AND PROSPECTING MODEL OF XIAOHAIZI PB-ZN DEPOSIT IN QIAOJIA

云南巧家县小海子铅锌矿区圈定了2个铅锌矿体(KT1、KT2),矿体呈层状、似层状分布于上奥陶系统大箐组(O_3d)细晶白云岩层间破碎带中,矿体产状与围岩岩层产状基本一致。次级断层构造控矿明显,矿床成因为华力西期中低温热液型铅锌矿床。

2 Pb-Zn ore bodies of Xiaohaizi Pb-Zn deposit in Qiaojia,bedded,stratoid,have been outlined in the interbed fracture zone of Upper Ordovician Daqing Formation(O 3 d)fine crystal dolomitite.The occurrence of orebody is basically consistent with that of the wall rock bed.The ore is controlled clear by the secondary fault structure.It is Variscan middle-low T hydrothermal Pb-Zn deposit in Genesis.