青海省东昆仑成矿带主要金矿床特征及关键控矿因素分析  

The Key Ore-controlling Factors and Characteristics of the Main Gold Deposits in the East Kunlun Belt,Qinghai Province

作　　者：李金超[1,2] 杜玮[2] 成永生[3] 孔会磊[1] 柳建新[3] 栗亚芝[1] 贾群子[1] 南卡俄吾[1,2] 夏明哲[2] 李艳军[4] 

机构地区：[1]西安地质矿产研究所,国土资源部岩浆作用成矿与找矿重点实验室,陕西西安710054 [2]长安大学地球科学与资源学院,陕西西安710054 [3]中南大学地球科学与信息物理学院,湖南长沙410083 [4]中国地质大学资源学院,湖北武汉430074

出　　处：《地质与勘探》2015年第6期1079-1088,共10页Geology and Exploration

基　　金：国土资源大调查项目(编号:1212010918044、12120113029000、12120115022101)联合资助

摘　　要：青海东昆仑地区近年来沟里金矿、五龙沟金矿等老矿区取得新进展和新突破,黑海北等新矿区(点)取得新发现。本文在分析区域成矿条件及典型矿床解剖的基础上,提炼出东昆仑地区金矿床关键控矿因素,即:东昆仑地区金矿床主要形成于海西期-印支期,其次为加里东期;岩浆活动为金矿床形成提供了成矿流体和成矿物质来源;北西西-北西向构造及次级派生构造控制金矿体的展布。基于此开展的成矿潜力分析认为:东昆仑地区具有良好的金矿床成矿潜力与找矿前景。Recent years have seen continued development of the old gold deposits, such as Gouli and Wulonggou,as well as discovery of many new gold deposits including Heihaibei in the East Kunlun region of Qinghai Province.This paper analyzes the metallogenic conditions and typical deposits and summarizes the key ore-controlling factors in tt, is area.It is consldered that the Late Variscan to [ndosinlan is the main mineralized period of gold deposits in East Kunlun,followed by Caledonian.The magmatism provides ore-forming fluids and material sources for the formation of gold deposits.NWW-NW struc- ture and secondary structures control the distribution of gold orebodies.Metallogenetic analysis suggests that there exist good metallogenetic conditions and prospecting potential for gold deposits in the East Kunlun region.

关 键 词：金矿 控矿因素 成矿潜力 东昆仑 青海 

分 类 号：P618[天文地球—矿床学]