胡村南铜钼矿段90线剖面原生晕分带特征及深部矿体预测  

Characteristics of primary halo zoning and prediction of deep orebody in 90 line section of South Hucun copper molybdenum oreblock

作　　者：郑凯[1] ZHENG Kai(geological team of Anhui Geological and Mineral Exploration Bureau,Tongling 244033,China)

机构地区：[1]安徽省地质矿产勘查局321地质队

出　　处：《世界有色金属》2019年第20期92-93,共2页World Nonferrous Metals

摘　　要：胡村南铜钼矿段为一“矽卡岩型-斑岩型”复合型矿床,系统研究深部勘探钻孔岩芯所记录的地球化学信息,对深部成矿信息进行示踪和评价,可以为矿区深部与外围找矿提供参考依据。选择该矿床的90线剖面钻孔原生晕分带特征进行了系统研究,原生晕轴向分带序列为:Au-As-Zn-Pb-Sb–Hg-V-S-Sn-Mo-W-Bi-Ag–Cu(自上而下),显示尾晕元素(W和Bi)和前缘晕元素(Ag)共存的现象,且Cu异常位于尾晕元素后面,非正常分带。根据原生晕成矿预测可以推断,胡村铜钼矿段可能是多阶段叠加成矿及矿体在深部还有很大延伸。The South Hucun copper molybdenum oreblock is a"skarn porphyry type"compound deposit.The geochemical information recorded in the core of the deep exploration borehole is systematically studied,and the metallogenic information in the deep is traced and evaluated,which can provide a reference for the deep and peripheral exploration of the deposit.The characteristics of the primary halo zoning in the 90 line section of the deposit are systematically studied.The axial zoning sequence of the primary halo is:au-as-zn-pb-sb–hg-v-s-sn-mo-w-bi-ag-cu(from top to bottom),showing the coexistence of the tail halo elements(W and BI)and the front halo elements(Ag),and the Cu anomaly is located behind the tail halo elements,abnormal zoning.According to the prediction of primary halo mineralization,it can be inferred that the Hucun copper molybdenum ore section may be multi-stage superimposed mineralization and the ore body has a great extension in the deep.

关 键 词：胡村铜钼矿段 钻孔原生晕 深部矿体预测 

分 类 号：P618.51[天文地球—矿床学]