五星山金矿床是位于延边地区的浅成低温热液金矿床,矿体产于碱长花岗岩、角闪安山岩、石英-黄铁矿脉和石英-方解石脉。研究表明,热液金矿化可分为黄铁矿-石英阶段,黄铜矿-方铅矿-闪锌矿-黄铁矿-石英阶段和石英-方解石阶段。流体包裹体研究表明,五星山金矿床主成矿阶段石英中发育气液二相流体包裹体;气液二相包裹体均一温度为134.6~324.7℃,盐度为1.16%~7.53%,密度0.73~0.94 g/cm3。包裹体岩相学、显微测温及氢、氧同位素综合研究结果表明,成矿流体为大气降水与岩浆热液混合流体。综合研究表明,五星山金矿床属浅成低温热液成因类型。
Wuxingshan Gold Deposit is an epithermal gold deposit located in Yanbian District .Research shows that the mineralization can be divided into three metallogenic stages:pyrite-quartz phase ,chalcopyrite-galena-sphaler-ite-pyrite-quartz phase , and quartz-calcite phases .The study of fluid inclusions shows that gas-liquid two-phase fluid inclusions developed in quartz of the main mineralization in Wuxingshan Gold Deposit .Fluid inclusions indicate that the gas-liquid two-phase homogenization temperature ranges from 134.6 ℃ to 324.7 ℃,while salinity varies from 1.16 %to 7.53%,and density from 0.73 g/cm3 to 0.94 g/cm3 .Comprehensive study of petrography ,microthermom-etry as well as hydrogen ,oxygen and carbon isotopes of fluid inclusions showed that the ore-forming fluid is a mixed fluid which is made up of atmospheric precipitation and magmatic fluids .It is concluded that Wuxingshan Gold Deposit is epithermal in origin .
参考文献
[1] | 冯守忠 .吉林省五凤-五星山金矿床地质特征与成矿条件[J].贵金属地质,1994,3(04):241-247. |
[2] | 冯守忠 .吉林五凤-五星山低硫型浅成热液金矿床地质特征与成矿条件[J].火山地质与矿产,1998,19(02):113-118. |
[3] | 陈雷,孙景贵,赵俊康,门兰静,梁树能,陈冬,逄伟.延边五凤--五星山金(银)矿床的流体包裹体特征及成因模式[J].吉林大学学报(地球科学版),2008(04):566-575. |
[4] | 贾大成;张潇;卢焱.吉林省延吉五凤和五星山浅成低温热液型金矿床[M].北京:地质出版社,2011:133-148. |
[5] | 贾大成,杜明龙,高文,张潇,姜涛,唐烁,何宽民.吉林延边五凤、五星山金矿床地球化学特征及其成因[J].矿物岩石地球化学通报,2012(05):470-478. |
[6] | 孟庆丽;周永昶;柴社力.中国延边东部斑岩-热液脉型铜金矿床[M].长春:吉林科学技术出版社,2001 |
[7] | 李兆龙;杨敏之.胶东地区金矿床地质地球化学[M].天津:天津科学技术出版社,1993 |
[8] | 张理刚.稳定同位素在地质科学中的应用[M].西安:陕西科学技术出版社,1985:91-94. |
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