矿化蚀变带的空间分布范围比金矿体大，更易于识别和填图，因此矿化蚀变带研究在金矿勘查实践中扮演着重要角色。通过在南秦岭石泉—汉阴北部金矿带开展深入研究工作，分析总结与金成矿有关的矿化和蚀变矿物特征，将其进行分类，并结合Au元素化学分析和电子探针测试结果，确定出明显的找矿标志。研究表明，与金成矿有关的主要找矿标志有：①细粒集合体状、透镜状、细脉状和不规则状褐铁矿，常沿揉皱变形的片理面弯曲分布；②呈拔丝状、纤维状和线状产出的半自形—他形粒状集合体黄铁矿，常沿着构造片岩的片理面分布，且随片理发育小型宽缓褶皱、小型尖棱褶皱；③烟灰色、烟灰—褐红色呈小透镜状、细脉状沿岩石片理产出的石英脉，镜下石英呈他形粒状结构，部分见波状消光；④代表热液活动的黑云母变斑晶、石榴子石变斑晶。

The spatial distribution range of mineralization zone is larger than that of gold orebody，and it’s easier to be identified and mapped.Therefore，the study of mineralization alteration zone plays an important role in the exploration practice of gold deposits.Based on the study of the northern Shiquan-Hanyin gold belt in south Qinling，the characteristics of mineralized and altered minerals related to gold mineralization was analyzed and classified，meanwhile，combined with Au element chemical analysis and electronic probe test results， the obvious prospecting criteria of the deposit was determined.The study shows that the main prospecting indicators related to gold mineralization are as follows：①limonites which are fine aggregate，small vein or in the shape of lenticular，always distribute crookedly along the crumpled schistosity plane；②pyrites which are filiform or like a wire forming subhedral or xenomorphic aggregate，distribute along schistosity plane and develop small gentle fold or small angular fold；③quartz veins which have color of smoky grey and are in shape of lenticular or small veins，have xenomorphic granular structure and wavy extinction under the microscope；④biotite phenocrysts and garnet phenocrysts.