江西金溪熊家山钼矿床流体包裹体地球化学研究  

Fluid Inclusion Characteristics of Xiongjiashan Molybdenum Deposit in Jinxi,Jiangxi Province

作　　者：张勇[1] 潘家永[1] 刘建光[2] 赵志刚[2] 万浩章[2] 赖峰[2] 陈辉云[2] 

机构地区：[1]东华理工大学核资源与环境教育部重点实验室,江西抚州330013 [2]江西省地矿局912大队,江西鹰潭335001

出　　处：《上海地质》2010年第B11期176-179,共4页

摘　　要：对江西金溪熊家山钼矿床不同位置的石英脉的流体包裹体的显微测温的研究结果表明,成矿流体属中盐度中温流体类型,流体密度介于0.9～1.0 g/cm^3之间,与前人研究认为的大多数岩浆热液流体密度(<1.0 g/cm^3)相当。在对包裹体进行研究的过程发现沸腾作用现象的存在,其成矿深度约为1.07km。成矿流体均—温度明显具有两个峰值,一个对应为辉钼矿化阶段,流体均—温度与盐度表现为中高温(280～440℃)和盐度为(15～21 NaCl.wt%),一个对应为铜矿化阶段的均—温度与盐度表现为中低温(140～260℃)和低盐度(8～15 NaCl.wt%)。破碎带中矿化石英脉与花岗岩中的的石英脉在温度与盐度变化规律上相同,但石英脉与围岩花岗岩中石英流体包裹体特征明显的不同。Combined fluid inclusion microthermometry of Xiong jiashan molybdenum deposit, the results show that Quartz vein at different positions has its own unique characteristics. The salinity of ore-forming fluid is medium salting with medium temperature, and fluid density belongs to intermediate-density input fluid （0.9-1.0g/cm3）, which have the same density of magmatic hydrothermal fluids of previous studies（〈1.0 g/cm3）,and it formed of the depth of 1.07 kilometers; Its homogenization temperature clearly has two peaks, that corresponding to the phase of molybdenite mineralization with the temperature from 360℃ to 475℃.And another peaks corresponding to copper mineralization with the temperature of （160-340℃）.

关 键 词：流体包裹体 钼矿床 流体密度 熊家山 

分 类 号：P618.65[天文地球—矿床学]