四川省平武县绿柱石中的流体包裹体研究  

STUDY ON FLUID INCLUSIONS IN BERYL FROM PINGWU,SICHUAN PROVINCE

作　　者：陈志军[1] 万世明[1] 吕新彪[1] 王文魁[1] 

机构地区：[1]中国地质大学资源学院,湖北武汉430074

出　　处：《地质科技情报》2002年第3期65-68,73,共5页Geological Science and Technology Information

基　　金：国家攀登计划预选项目 (95 -预 -3 9)

摘　　要：介绍了四川省平武县产出的绿柱石晶体中流体包裹体的均一温度和激光拉曼光谱分析结果 ,探讨了绿柱石形成时的物理化学条件。研究表明绿柱石矿床属气成—热液成因 ,包裹体类型以气液流体包裹体为主 ,还有含方解石子晶的流体包裹体。绿柱石的形成温度较宽 ,最佳温度为 2 75～ 3 0 0°C,成矿压力 86MPa左右 ,绿柱石形成时体系中的 CO2 密度较高 ,ρ(CO2 ) =0 .662g/ cm3 ,成矿流体的盐度较低 ,w(Na Cl)约为 6.191%。Using laser Raman spectroscopy technique,the authors work on fluid inclusion geology in beryls from Pingwu County,Sichuan Province,and discuss the physical Chemical conditions of formation.The beryl ore deposit is of mesothermal hypothermal type. Two types of inclusions have been found: gas liquid fluid inclusions and calcite daughter crystal bearing fluid inclusions.The formation temperature is wide(better 275-300°C) and the pressure is high(about 86 MPa);CO 2 density is fairly high[ ρ (CO 2)= 0.662 g/cm 3] , and the salinity is low [ w (NaCl)=6.191 %] in the system during the formation of beryls.

关 键 词：绿柱石 流体包裹体 激光拉曼光谱 四川 平武县 地质条件 

分 类 号：P578.953[天文地球—矿物学]