内蒙古哈达门沟金矿成矿控矿机制  

Analysis of Ore-controlling Mechanism of Gold Mineralization in Hadamengou Gold Deposit,Inner Mongolia

作　　者：夏冬[1,2] 牛树银[1] 徐国[3] 陈超[1,3] 赵志远[1] 彭玉旋[4] 

机构地区：[1]石家庄经济学院资源学院,河北石家庄050031 [2]内蒙古地质调查院,内蒙呼和浩特010020 [3]中国地质大学(北京),北京100083 [4]新疆维吾尔自治区矿产实验研究所,新疆乌鲁木齐050081

出　　处：《黄金科学技术》2011年第2期13-17,共5页Gold Science and Technology

基　　金：危机矿山办项目(编号:20089948;20109901)资助

摘　　要：哈达门沟金矿经过验证具超大型金矿床规模,金矿除严格受构造控制以外,又具有其自身独特性,如围岩的金高背景值、山前砖红色碎裂蚀变岩带、晶形粗大的黑云母花岗伟晶岩脉及岩浆多期侵入等,都成为金矿床形成不可或缺的因素。以幔枝构造理论为指导,通过对矿床地质特征及诸因素综合研究,认为哈达门沟金矿属于断裂—蚀变岩型矿床,乌拉山岩群是重要的矿源层;EW向主次拆离带(主次断裂)为主要的导矿、容矿构造;多期次岩浆活动,尤其是印支期大桦背岩体、华力西晚期沙德盖岩体的形成为矿床提供热力、热水及部分成矿物质;成矿与黑云母花岗伟晶岩及乳白色石英脉脆性变形关系密切。探讨了矿床成矿规律,提出了找矿远景。Hadamengou gold mine has a large deposit scale by proven,gold deposit is strictly controlled by tectonic,also has its own unique,such as high gold background values of wallrock,piedmont red fragments altered belts,thick crystal biotite granite pegmatite,and multi-stage intrusion of magma,and it become an indispensable factor in the formation of gold.Take mantle branch theory as a guide,through comprehensive study of geological features and other factors,we consider that Hadamengou gold mine belongs to fracture-altered rock type deposit,wulashan rock Group is an important ore source,EW-trending primary and secondary detachment is the main leading-host structures,multi-stage magmatic activity provide heating,hot water and some minerals for deposit,mineralization is close related with biotite granitic pegmatite and brittle deformation of quartz veins.We discuss metallogenic regularity of deposit,and propose ore prospecting.

关 键 词：幔枝构造 成矿控矿机制 主次拆离带 脆性变形 哈达门沟金矿 

分 类 号：P618.51[天文地球—矿床学]