内蒙古锡林浩特—苏尼特左旗地区金成矿条件及找矿远景分析  

Gold Mineralization and Prospecting Analysis in Xilinhaote and Sunitezuoqi Areas,Inner Mongolia

作　　者：汤超[1,2] 商志文[2] 余礽安[1,2] 刘晓雪[2] 

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]天津地质矿产研究所,天津300170

出　　处：《黄金科学技术》2012年第6期7-14,共8页Gold Science and Technology

基　　金：中国地质调查局项目"内蒙古索伦山-东乌旗地区航空综合站测量异常查证与勘查选区评价"(编号:1212010781028);内蒙古自治区地质矿产勘查项目"内蒙古自治区阿巴嘎旗朝克温多尔金矿普查"(编号:05-6-KC05)联合资助

摘　　要：在论述锡林浩特—苏尼特左旗地区找矿环境及成矿地质背景的基础上,系统研究了地层、构造作用和岩浆活动与金矿的有机联系,对该地区金成矿地质条件进行了初步分析,认为区内多数金矿床(点)受构造控制明显,成矿主要与晚古生代中酸性侵入岩、次火山岩及韧性剪切带关系密切,矿床类型以石英脉型、蚀变岩型及中低温热液型为主。最后,结合区域物化探异常特征,建立了区域找矿综合模型,划分出4个成矿远景区,指出苏尼特左旗以东至锡林浩特广大地区具备较大的金矿找矿前景。Based on the discussion of Xilinhaote and Sunitezuoqi prospecting environment and mineralization geo- logical background, the organic links of stratigraphic, tectonic, magmatic activities and gold mineraliztions has been system studied.After a preliminary analysis of the areas metallogenic geological conditions,we point out that the majority of deposits （points） significantly controlled by structure, mineralization is mainly related to the late Paleo- zoic acidic intrusive rocks,sub-volcanic rocks and ductile shear zone,and the main deposit types are quartz veins, altered rock and low-temperature epithermal.Last, with comprehensive study of regional geophysical and geochemi cal anomalies characteristic, four prospecting areas are divided.There are large gold ore prospects from the east of Xilinhaote to Sunitezuoqi areas.

关 键 词：金矿 成矿条件 找矿远景 内蒙古 

分 类 号：P618.51[天文地球—矿床学]