桂东南地区早志留世热水沉积矿床流体包裹体地球化学  

FLUID INCLUSION GEOCHEMISTRY OF EARLY SILURIAN'S EXHALATIVE- SEDIMENTARY DEPOSITS IN SOUTHEAST OF GUANGXI

作　　者：杨斌[1] 李保华[1] 张芳[2] 

机构地区：[1]成都理工学院资经系,四川成都610059 [2]桂林矿产地质研究院,广西桂林541004

出　　处：《矿产与地质》2002年第1期47-48,共2页Mineral Resources and Geology

摘　　要：佛子冲、东桃等热水沉积矿床中矿物流体包裹体分析表明 :铅、锌在成矿热液中迁移的主要方式为氯阴离子络合物 ,当热液进入海底后 ,由于海水的混入导致热液温度降低和 p H值升高 ,热液中 S2 -将会增加 ,铅、锌的卤化物络合物则变得不稳定 ,利于 Pb S和 ZnThe analysis of fluid inclusion in minerals of hydrothermal depositional deposits such as Fuzichong,Dongtao deposit etc.show that anion chlorine complex was the main form for Lead and Zinc transportation in ore forming hydrothermal fluid.As soon as the fluid entered the sea floor,Lead and Zinc sulfides precipitated due to the decrease of the fluid temperature,ascent of pH and increase of reduced sulphur and unsteadiness of the Lead nd Zinc halide complex caused by seawater mixing.

关 键 词：桂东南 早志留世 热水沉积矿床 流体包裹体 地球化学 

分 类 号：P611.22[天文地球—矿床学] P599[天文地球—地质学]