周宁芹溪铅锌银矿床地质特征与成因初探

On Geologic Characteristics and Genesis of the Qinxi Lead-Zinc-Silver Deposit in Zhouning County

位于周宁芹溪铅锌银矿床产在晚侏罗—早白垩世中 -酸性火山活动带上 ,成矿与断裂构造及次火山活动有关。该矿床经普查—详查工作 ,已基本查明了 6号构造蚀变带矿床地质特征、控矿条件、矿体规模及形态特征 ,初步研究认为该矿床应属中低温浅成火山热液成因的硫化铅锌银矿。

The Qinxi lead-zinc-silver deposit in Zhouning County is discovered in the Late Jurassic to Early Cretaceous intermediate-acidic volcanic belt and the ore-forming process of the deposit is relative to the faulted structures and subvolcanic activity. The reconnaissance and detailed survey of the deposit has made certain of the ore-deposit geologic characteristics, the ore-control conditions, the orebody size and morphological characteristics in the No.6 structural altered zone. Based on the preliminary study, it is inferred that the deposit belongs to sulfureted lead-zinc-silver deposit derived from the low-to-moderate temperature hypabyssal volcanic-hydrothermal fluid.