内蒙古自治区哈达门沟金矿以其特殊的钾长石化蚀变而备受注目。通过对哈达门沟金矿钾长石化蚀变特征及钾长石化形成的物理化学条件等方面的研究， 指出哈达门沟金矿石英脉旁为钾长石化而不是绢英岩化的原因是因为矿床形成部位深、形成温度较高、成矿介质偏碱性并具较大的ｍ（Ｋ＋）／ ｍ（Ｈ＋） 值。据此归纳华北地台热液金矿床的蚀变（ 矿化） 垂直分带由下而上为： 钾长石化带（ 细脉浸染型矿化）—绢英岩化带（ 蚀变岩型矿化） —硅化脉带（ 石英脉型矿化） ， 进而指出该分带模式的成矿和找矿指示意义 The Hadamengou gold deposit of Inner Mongolia Autonomous Region has attracted much attention due to its special K-feldspar alteration. Based on the research on the alteration characteristics of K-feldspar and the physicochemical conditions of K-feldspar formation in the Hadamagou gold deposit, it is pointed out that the reason for the K-feldspar instead of the Silphenic petrochemistry beside the Hadamagou gold deposit is that The formation of the deposit is deep and the formation temperature is high. The ore-forming medium is alkaline and has a large value of m (K +) / m (H +). Therefore, the alteration (mineralization) vertical zoning of the hydrothermal gold deposit in the North China Platform is summarized as follows: potassium feldspathized zone (vein-infiltration mineralization) - sericite lithification zone ) - silicification vein (quartz vein type mineralization), and then indicate the zoning pattern of ore-forming and prospecting significance