浙江谢圣岭矿区铅锌矿成矿地质特征及成因分析

Analysis on Metallogenic Geological Characteristics and Genesis of Lead-zinc Deposit in Xieshengling Mining Area,Zhejiang Province

谢圣岭地区在千家村岩体(背斜)的南翼存在规模较大的洞山矿段,上台门铅锌矿、榔槿坞铅锌矿等多金属矿,由于这一成矿带的成矿条件较好,具有形成中型规模以上矿床的潜力。为了进一步开发谢圣岭矿区铅锌矿,对矿区地质特征及矿体特征等进行综合整理和归纳总结,从区域成矿地质条件及控矿地质条件2个方面进行研究分析,得出了本矿床成因。结果表明:谢圣岭矿属热液充填型及矽卡岩型成因矿床,区内北东方向磁异常及石英脉、褐铁矿、磁铁矿充填的F1断裂构造带,花岗闪长岩体中的断裂破碎带以及近岩体的矽卡岩、角岩带为本区重要的找矿标志。

In the south wing of Qianjiacun pluton(anticline),there are large scale polymetallic deposits such as Dongshan ore section,Shangtaimen lead-zinc deposit and Langjinwu lead-zinc deposit in Xieshengling area.Due to the favorable metallogenic conditions of this metallogenic belt,it has the potential to form medium-scale ore deposits.In order to further develop the lead zinc deposit in Xieshengling mining area,the geological characteristics and ore-body characteristics of the mining area are comprehensively sorted out and summarized,and the regional metallogenic geological conditions and ore-controlling geological conditions are studied and analyzed,and the genesis of the deposit is obtained.The results show that Xieshengling deposit belongs to hydrothermal filling type and skarn type deposit.The F1 fracture zone filled with quartz veins,limonite and magnetite in northeast direction,the fracture zone in granodiorite and the skarn and hornstone zone near the rock mass are important prospecting indicators in this area.