基于烃类组分结构的海域金矿成矿带演化特征  

Evolution characteristics of Haiyu gold metallogenic belt based on hydrocarbon component structure

作　　者：李镇江 陈远荣[1] 田洪林[1] 葛云鹏 贾玉衡[1] LI Zhenjiang;CHEN Yuanrong;TIAN Honglin;GE Yunpeng;JIA Yuheng(College of Earth Sciences,Guilin University of Technology,GuiHn 541006,Guangxi,China)

机构地区：[1]桂林理工大学地球科学学院,广西桂林541006

出　　处：《矿产与地质》2018年第3期546-552,共7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：近年来,很多研究结果表明:烃类组分结构常常与矿床的演化与成因密切相关,而胶西北地区该类型的研究较少。选择三山岛海域金矿为代表矿床,分析海域金矿30勘探线所取样品的地球化学特征和烃类组分结构特征,以探索该地区成矿带的演化特征。通过研究发现:本区各类地质体的烃类组分都属于热裂解成因,相互间具有一定的继承性,可能均来源于古老基底胶东群;海域金矿化体的形成与脉岩没有明显的成因关系,成矿热液伴生的烃类组分在成矿过程中,对围岩甚至是基性脉岩的烃类异常场有改造作用。In recent years,many research results show that the hydrocarbon component structure is closely related to the evolution and genesis of the deposit,but the research in northwest Jiaodong area is less.Based on the analysis of geochemical characteristics and hydrocarbon component structure of the samples from the 30 exploration line of the Haiyu gold deposit in the Sanshandao,this paper explores the evolution characteristics of the metallogenic belt in the area.Through the research,it can be found that hydrocarbon components of every geological body in this district belong to the origin of thermal cracking,and are inherited each other and likely to come from the old basement of Jiaodong Group.The formation of Haiyu gold deposits is not related to the dikes.The hydrocarbon components associated with the hydrothermal fluid have reformed the hydrocarbon anomaly field of the surrounding rock and even the basic vein rock during the metallogenic process.

关 键 词：海域金矿 烃类组分 微量元素 微观结构 演化特征 

分 类 号：P593[天文地球—地球化学] P618.51[天文地球—地质学]