新疆北山地区清白山铅锌矿“三位一体”勘查找矿地质模型探讨

Discussion on the"Trinity"Exploration and Prospecting Geological Model of Qingbaishan Lead-Zinc Deposit in Beishan Area,Xinjiang

新疆哈密市北山地区清白山铅锌矿位于中亚造山带南缘北山增生造山带内,受古生代古亚洲洋俯冲、消减影响,产于造山带内古老块体(蓟县纪蚀变大理岩)中的铅锌矿体受后期构造-岩浆改造明显,矿体形态复杂多样。通过对矿区大比例尺构造-岩性填图,结合光薄片鉴定成果,基于成矿地质体、成矿构造与成矿结构面、成矿作用特征标志等因素,系统分析清白山铅锌矿控矿要素,建立清白山铅锌矿"三位一体"勘查找矿预测地质模型,为后期矿区深部及外围矿产勘查工作部署提供新的数据支撑。

The Qingbaishan lead-zinc deposit located in Beishan accretionary orogenic belt on the southern margin of the central Asian orogenic belt(CAOB),Under the influence of the subduction of the Paleozoic Asian ocean,the leadzinc ore bodies in the ancient block(Mesoproterozoic altered marble)in the orogenic belt were obviously transformed by the late tectono-magmatic transformation,the ore body forms are complex and varied.In this study,the results were identified by mapping of the large-scale structure and lithology of the mining area and combining with the thin section authentication,based on such factors as metallogenic geological bodies,metallotectonic and metallogenic structural surface,and metallogenic characteristics,systematic analysis of ore control elements in Qingbaishan lead-zinc deposit,the"Trinity"exploration and prospecting geological model of Qingbaishan lead-zinc deposit is established,it provides new data support for deep and peripheral mineral exploration in the later period.