智利阿卡贝拉铜及多金属矿地质特征及找矿标志

Geological Characteristics and Prospecting Indicator of Copper and Polymetallic Deposits in Acabella,Chile

勘查区受阿塔卡玛断裂和多明戈断裂系统及次级构造的影响,区内具有两类不同形态的矿化体:第一类为石英脉型多金属矿化体,第二类为电气石角砾岩型矿化体,均为浆期后发生矿化,石英脉硅化带是多金属矿的有利部位。孔雀石化、镜铁矿化及褐铁矿化石英细脉充填的北西向剪切破碎带为直接找矿标志。

Affected by Atacama fault, Domingo fault system and secondary structure, the prospecting area has two types of mineralized bodies in different forms: the first type is quartz vein type polymetallic mineralized body, the second type is tourmaline breccia type mineralized body, both mineralized after pulp stage. Quartz vein silicified zone is a favorable location for polymetallic ore. The NW shear fracture zone of peafinitization, vitritization and limonite fossil brit filling is a direct prospecting indicator.