Porphyry Cu ± Mo ± Au deposits are centered within a distinctive arrangement of alteration assemblages, including sodic-calcic, potassic, propylitic, chlorite-sericite with early and late sericitic, and finally, near-surface advanced argillic alterations. Here we discussed the linkage between feldspar-destructive processes and hypogene sulfide mineralization in the porphyry systems. Also, the chemical composition of white mica in the phyllically altered rocks of weakly mineralized/barren and fertile porphyries was discriminated. Following the new genetic models of porphyry copper systems, it is evident that the mechanism lying in sulfide mineralization could explain the tight association between sulfide mineralization and phyllic alteration. Moreover, under acidic pH conditions during feldspar-destructive processes, the feldspars of mineralized areas are more sensitive to hydrolysis processes, owing to the higher alumina contents (~ higher anorthite %) in their compositions. Combining the mineralization mechanisms of PCDs, which highlights the significant contribution of calcic feldspars in the sulfide precipitation, it is proven that there are much more feldspar-destructive processes in the mineralized zones. These may show that probable geochemical clues for the discovering of highly mineralized porphyry systems have lied in the composition of feldspar remnants and/or products of feldspar-destructive processes. Comparing the white mica composition of weakly mineralized/barren and mineralized porphyry systems indicate they consistently show ideal tschermak’s type substitution. However, weakly mineralized systems exhibit relatively higher contents of Al/Fe + Mg (apfu) and Si + Al (apfu) contents than that of mineralized porphyry systems.

斑岩 Cu ± Mo ± Au 矿床集中在一个独特排列的蚀变组合中，包括钠钙质、钾质、青钾质、绿泥石-绢云母和早期和晚期绢云母，最后是近地表高级泥质蚀变。在这里，我们讨论了长石破坏过程与斑岩系统中的次生硫化物矿化之间的联系。此外，还区分了弱矿化/贫瘠和肥沃斑岩的叶状蚀变岩石中白色云母的化学成分。根据斑岩铜系统的新成因模型，很明显，硫化物矿化的机制可以解释硫化物矿化与叶状蚀变之间的紧密联系。此外，在长石破坏过程中的酸性 pH 条件下，矿化区的长石对水解过程更敏感，因为其成分中的氧化铝含量较高（~ 钙长石百分比较高）。结合 PCDs 的成矿机制，突出钙质长石在硫化物沉淀中的重要贡献，证明在矿化带中存在更多的长石破坏过程。这些可能表明，发现高度矿化斑岩系统的可能地球化学线索在于长石残余物和/或长石破坏过程产物的组成。比较弱矿化/贫瘠和矿化斑岩系统的白色云母成分表明它们始终显示出理想的 tschermak 类型替代。然而，