Mineralization-related alteration mainly are intensive silication and sericitization.
矿化蚀变以强硅化、绢云母化为特征。
Therefore gold metallization is accompanied with potassic alteration, silication and alkali granite.
金矿化总是与钾化、硅化交代或碱性花岗岩共生。
Xiazhangzi gold deposit is strictly controlled by structural fracture zone, and the wall rock alterations are mainly of K feldsparization, pyritization, silication and carbonation.