摘要
张宣地区的内生金矿为多源复成热液型金矿，按地质背景及地球化学特征的差异，分为小营盘型、张全庄型和东坪型。它们在空间上均直接或间接地受控于太古界桑干群变质岩系，成矿时间相近（２６０～１５０Ｍａ），具有共同的演化谱系和相似的成矿过程，相互间有着密切的内在成因联系，可视作同一金矿成矿系列．这３类金矿在时间、空间、物质成分及成因方面具有共生性、连续性、分带性、重叠性和过渡性．
Zhangjiakou-Xuanhua region is located in the northern edge of the Platform of Northern China. All the endogenetic gold deposits in this region are composite ones.According tothe different characteristics of geology and geochemistry of the gold deposits in this region,the authors divide the gold deposits into 3 categories:Xiaoyingpan type, Zhangquanzhuangtype and Dongping type.These ore deposits are controlled by the metamorphic rocks ofArchean Sanggan Group directly or indirectly and formed in almost the same orogenic period(260～150 Ma).The evolving history of these gold deposits is common. They constitute ametallogenic series of gold deposits of this region.The 3 types of gold deposits in the serieshave the characteristics of paragenesis,continuity,zonation,superposition and transition inspatial distribution, time evolution and minerogenic composition.
基金
博士点基金
关键词
金矿床
矿床类型
成矿系列
gold deposit
categories of deposits
metallogenic series
Hebei
