流体包裹体与金矿床的成矿及勘探评价

FLUID INCLUSION EVIDENCES IN THE PROCESSES AND ENVIRONMENTS OF GOLD DEPOSITION

金矿床矿石和脉石矿物中的流体包裹体是封存在这些矿物中的热液样品，它可以提供含金成矿流体的温度、盐度、压力、密度、成分以及热液来源和成矿时代等信息．本文对中深脉状、浅成低温热液型、卡林型、斑岩型和矽卡岩型金矿床中的流体包裹体特征作了探讨，提出流体包裹体岩相学、均一温度、爆裂温度及气相成分等是金矿床勘探评价直观而有效的方法．

Fluid inclusions, trapped in the ore and gangue minerals, are fossil fluids of ancient mineralized hydrothermal systems.Fluid inclusion data,including temperature,pressure,salinity,density,composition etc,can be used as a constraint to help understanding the processes and environments of ore depositionThis paper reviews fluid inclusion data in mesothermal lode,epithermal,Carlintype,porphyry and skarn gold depositsFluid inclusion petrography,homogenization temperature,decripitation temperature and composition,particularly gaseous composition,can be applied in both regional and local exploration programs for gold