南岭某些钨锡铍矿床中单个流体包裹体成分初步研究  

Preliminary Study on Composition of Individual Fluid Inclusion in Minerals from Certain of W-Sn-Be Deposits,Nanling

作　　者：王晓地[1] 刘家齐[2] 汪雄武[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]国土资源部宜昌地质矿产研究所,湖北宜昌443003

出　　处：《华南地质与矿产》2008年第3期40-45,共6页Geology and Mineral Resources of South China

基　　金：地质调查项目(200113900018);宜昌地质矿产研究所科技发展基金(K200303)

摘　　要：使用激光拉曼光谱测定了南岭三个典型钨锡铍矿床的水晶、绿柱石、锡石和香花石中单个流体包裹体气、液相的成分,除H2O外,气、液相中均含有大量的CO2,烃类普遍存在,其中以丙烯最重要。南岭W-Sn矿床成矿流体可能是花岗质岩浆在岩浆-热液过渡阶段不混溶的流体分离形成的。在成矿晚期,围岩热接触变质释放出的N2连同循环的大气水进入成矿流体。The individual fluid inclusions in quartz, hsianghualite, cassiterite and beryl from representative W - Sn - Be deposits in Nanling have been analysed using Laser Raman microprobe in order to get its compositions of gaseous phase and liquid phase. Except of H20,there is commonly abundant CO2 and presence of hydrocarbon （C1 - C2） ,which is dominated by C3H6 ,in both gaseous phase and liquid phase. W - Sn - Be ore -forming fluid,Nanling,is formed by immiscible H20 -CO2 phase separation in granitic magma during magmaticbydrothermal transitional stage. N2 formed by thermal contact metamorphism of host metasedimentary rock, along with cycling meteoric water,is additions into ore -forming fluid in the late ore -forming stage.

关 键 词：单个流体包裹体 拉曼光谱 钨锡铍矿床 南岭 

分 类 号：P618.44[天文地球—矿床学] P618.67[天文地球—地质学]