华北地台周沿金矿地球化学特征对比  

Comparison of geochemical characteristics of gold deposits along the North China Platform

作　　者：葛云鹏 陈远荣[1] 严松[1] 段炼[1] 潘能海 田洪林 GE Yunpeng;CHEN Yuanrong;YAN Song;DUAN Lian;PAN Nenghai;TIAN Honglin(Guilin University of Technology,Guilin 541006,Guangxi,China;Second Middle School in Hepu County,Hepu 536100,Guangxi,China)

机构地区：[1]桂林理工大学,广西桂林541006 [2]合浦县第二中学,广西合浦536100

出　　处：《矿产与地质》2018年第2期352-357,共6页Mineral Resources and Geology

基　　金：国家科技支撑项目(2014BA05B00);有色及贵金属隐伏矿床勘查教育部工程研究中心项目(2015GCZX006)共同资助

摘　　要：通过对华北地台周沿的白云金矿、大尹格庄金矿、杨砦峪金矿三个典型金矿进行烃汞气体和微量元素含量特征分析,部分特征指标在矿体周围的含量变化规律以及烃类组分配分模式对比,结果发现:华北地台周边的金矿在其成矿过程中皆伴生有烃汞气体,而且在矿体周围烃类组分主要呈空心晕圈结构;具有相似的的成矿背景,但物源来源深度存在一定差异;成矿都与热液有关,但成晕和成矿规模存在差异;纵向上都具有地球化学叠加晕,显示多个矿化富集中心或成矿空间,其深部都存在找矿潜力。By analyzing the characteristics on the content of hydrocarbon and mercury and microelement to three typical gold mines including Baiyun,Dayingezhuang and Yangzhaiyu gold deposit around North China Platform and comparing the content variation laws of part characteristic index around the ore body and distribution pattern of hydrocarbon component,the results show that：all gold mines around the North China Platform are associated with hydrocarbon and mercury gas in the ore-forming processes,and hydrocarbon mainly have a hollow halo structure around ore body.All of them have similar metallogenic background,but provenances are certainly different.The forming of mines are all related to Hydrothermal liquid,but halo forming and metallogenic in scale are differences.They both have geochemical superimposed halo in longitudinally,which revels multiple mineralization enrichment centers or metallogenic spaces,and advantage prospecting potential in deep.

关 键 词：金矿 华北地台 烃汞气体 微量元素 烃类组分结构 特征对比 找矿潜力 

分 类 号：P618.51[天文地球—矿床学] P632[天文地球—地质学]