白音哈尔金矿床成矿作用  

Metallogenic Process of the Baiyinhaer Gold Deposit

作　　者：李钢柱[1] 贾元琴[1] 张彪[2] 陈克娜[1] 胡沛青[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]武警黄金第二支队,内蒙古呼和浩特010010

出　　处：《黄金科学技术》2008年第3期6-12,共7页Gold Science and Technology

基　　金：国家自然科学基金项目"铜镍铂族岩浆矿床成矿岩浆作用稀有气体示踪"(编号:40772058);"小岩体岩浆硫化物矿床成矿岩浆作用过程"(编号:40534020);"超大型岩浆矿床成矿作用流体组成示踪"(编号:40273009);教育部新世纪优秀人才支持计划项目"大别-苏鲁超高压变质带深部过程流体组成示踪(编号LNCET-04-0980);兰州大学教学质量工程专项经费支持计划联合资助

摘　　要：白音哈尔金矿床是华北克拉通北缘多金属成矿带中典型的石英脉—破碎蚀变岩复合型金矿床。通过野外精细地质填图、矿区构造测量、及Au、As、Ag、Cu、Pb、Zn和B i等元素地球化学特征分析,认为白音哈尔金矿床是分布受断裂构造控制的与中酸性岩体有关的多期次热液叠加成矿作用形成的石英脉—破碎蚀变岩复合型金矿床;石英脉型矿体中金等成矿物质主要来自中、上元古界温都尔庙群和白乃庙组中的绿片岩—角闪岩相的古老地层,蚀变岩型矿体中的金等成矿物质主要来自华力西晚期的石英闪长岩和斜长花岗岩体。对认识多期次、不同成矿作用叠加的成矿规律具有一定的理论与实践指导意义。The Baiyinhaer gold deposit is a typical gold-bearing quartz veins type and gold-bearing altered rock type composite gold deposit in polymetallic ore belt of the northern margin of North China Craton. On the basis of high-resolution geological mapping, measurement and study of tectonics, analysis of geochemistry of Au, As, Ag, Cu, Pb, Zn, Bi and other elements. We consider that the distribution of the ore-veins of the Baiyinhaer gold deposit is controlled by the fracture zones of the NE, NNE and EW strike. The mineralization of the Baiyinhaer gold deposit is a product of superposition of gold multi-stated mineralization, which is bound up with the intermediate-acid intrusive rocks in the area. The ore-forming materials of quartz veins type of gold-bearing ore mainly come from the Group Rocks of the Middle and Upper Proterozoic Erathem, while the ore-forming materials of altered rock type of gold-bearing ore mainly come from the quartz-diorite and plagiogranite formed in late Variscan Age in the area.

关 键 词：金矿床 蚀变岩 成矿物质来源 华北克拉通北缘 白音哈尔 

分 类 号：P618.51[天文地球—矿床学]