王屋山断隆带铜矿地质特征及找矿方向

Geological Features and Prospecting Area of the Copper Deposits in Wangwushan Fault-Uprising Belt

王屋山断隆带位于河南省济源市西北部,系中条山铜成矿带的东延部分。区内有与铜矿化关系密切的新太古代—古元古代构造窗200余平方千米;断隆带内分布有以铜为主的综合地球化学异常数十处;区域重磁异常还显示带内隐伏—半隐伏岩体、与铜矿化有关的矿化蚀变比较发育。由于已发现的铜矿床与遥感异常分布十分吻合,但王屋山遥感异常区内还未发现成型铜矿床。根据该区良好的铜成矿地质条件并结合本区矿床类型和矿点分布规律,确定出的找矿方向为:清虚宫—虎岭地区寻找变斑岩型铜矿;石板道地区寻找热液型—变斑岩型铜矿;软枣角沟—小沟—柳行沟铜矿化带及其东西延伸方向是寻找变基性火山岩型铜矿床的有利地段;西端是变斑岩型铜矿床和热液型铜矿床分布的有利地段;瓦庙坡地区主要寻找沉积变质型铜矿床。

As the eastward extension part of Zhongtiaoshan copper mineralization, Wangwushan fault-uprising belt is located in the northwest of Jiyuan city, Henan Province. In the area there are more than 200 km^2 of the Neoarchean-Palaeoproterozoic tectonic window and tens of comprehensive geochemical anomalies, which are close related to copper mineralization. Regional gravity and magnetic abnormalities reveal the buried / middle-buried magmatic body with a widespread rock alteration, which are related to copper-mineralization too in the belt. Although the available copper mines are consistent with the remote sensing anomalies, no large-scale copper deposits have been discovered in the anomaly distribution of Wangwushan area. The favorable geological background for copper metallization combined with distribution of copper mineral deposits and occurrences enables to confirm the direction of mineral prospecting as follows： meta-porphyry copper can be found in Qingxugong-Huling area; hydrothermal-apoporphyry copper is likely to exist in Shibandao area; the Ruanjiaozaogou-xiaogou-liuhanggou copper-mineralization zone and its extension of east-west direction are a favorable area for searching meta-basic volcanic copper deposit, western end of which was the favorable area for meta-porphyry and hydrothermal copper; lastly Wamiaopo area is predominated by meta -sedimentary copper deposits.