河南南召县佛爷沟铅锌矿床成矿流体特征研究  

Study of metallogenic fluid characteristics of Foyegou Pb-Zn deposit in Nanzhao County,Henan Province

作　　者：李建领 郑明泓[2,3] 杨冬冬 张建东[2,4] 谭华杰[2,4] 彭光雄[2,4] 程路平[2,4] LI Jianling ZHENG Minghong YANG Dongdong ZHANG Jiandong TAN Huajie PENG Guangxiong CHENG Luping(The Geological Team No. 2, Henan Province Non-ferrous Metals Geological Mineral Resources Bureau, Zhengzhou 450016, Henan ,China Key Laboratory of Ministry of Education of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Central South University ,Changsha 410083, Hunan ,China Non-Ferrous Metals and Nuclear Industry Geological E：cploration Bureau of Ouizhou ,Guiyang 550005, Guizhou , Chin School of Geosciences and Info-Physics ,Central South University ,Changsha 410083, Hunan ,China)

机构地区：[1]河南省有色金属地质矿产局第二地质大队,河南郑州450016 [2]中南大学有色金属成矿预测与地质环境监测教育部重点实验室,湖南长沙410083 [3]贵州省有色金属和核工业地质勘查局,贵州贵阳550005 [4]中南大学地球科学与信息物理学院,湖南长沙410083

出　　处：《矿产与地质》2017年第3期543-550,共8页Mineral Resources and Geology

基　　金：河南省国土资源厅2014年度"两权价款"地质科研项目(编号:2015-258-16)资助

摘　　要：通过对野外地质特征及流体包裹体研究,将本区成矿过程分为3个成矿阶段:石英-黄铁矿阶段、石英-多金属硫化物阶段及石英-碳酸盐阶段。包裹体类型主要为富液相包裹体(LV型)。石英-黄铁矿阶段均一温度主要集中于290℃~330℃,盐度变化范围为0.35%~11.23%,平均值为5.37%;石英-多金属硫化物阶段的均一温度主要集中于290℃~330℃,盐度变化范围为0.35%~11.23%,平均值为5.37%;石英-碳酸盐阶段温度均一温度主要集中于133℃~201℃,盐度变化范围为2.23%~12.07%,平均值为4.96%。成矿流体在初始阶段为较高盐度的岩浆流体,属于中-低温、低盐度的H2O-NaCl体系,随着成矿作用的进一步演化,晚期有大气降水的参与。Based on the study of geological characteristics and fluid inclusions,the ore-forming process can be divided into 3metallogenic stages,quartz pyrite stage,quartz polymetallic sulfide stage and quartz carbonate stage.The main type of fluid inclusions is rich liquid inclusions（LV type）.Quartz pyrite stage homogenization temperature is mainly concentrated in 290℃-330℃,the salinity range changes from 0.35%to 11.23%,the average value is 5.37%.The homogenization temperature of quartz polymetallic sulfide stage is mainly concentrated in 290℃-330℃,the salinity range changes from 0.35% to 11.23%,the average value is 5.37%.The quartz-carbonate stage homogenization temperature is mainly concentrated in 133℃-201℃,the salinity range changes from 2.23% to 12.07%,the average value is 4.96%.The ore-forming fluid in the initial stage is magmatic fluids of high salinity,which is belonged to H2O-NaCl system of low-middle temperature and low salinity.With the further evolution of mineralization,atmospheric precipitation is involved in the late stage.

关 键 词：佛爷沟铅锌矿床 地质特征 流体包裹体 成矿阶段 河南 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]