江西省徐山石英脉型钨矿床流体包裹体研究  

Fluid Inclusion Studies of the Xushan Tungsten Deposit in Jiangxi Province

作　　者：周文婷[1] 潘家永[1] 张勇[1] 张淑梅[1] 

机构地区：[1]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西抚州344000

出　　处：《东华理工大学学报（自然科学版）》2014年第2期170-173,共4页Journal of East China University of Technology(Natural Science)

基　　金：东华理工大学放射性地质与勘探技术国防重点学科实验室开放基金(REGT1206);东华理工大学核资源与环境重点实验室东华理工大学开放基金资助(NRE1111)

摘　　要：地质流体在各种成矿作用中都起到十分重要的媒介作用,是矿床学研究的主要内容之一,而流体包裹体则是当前成矿流体研究的一个重要手段.在详细的岩相学观察的基础上,对徐山钨矿床石英脉石英中的流体包裹体进行了显微测温工作.实验结果表明,该矿床含矿石英脉中包裹体主要为富液相的气液两相包裹体,均一法实验测得的均一温度为190.4～446℃,平均均一温度为290.8℃,盐度为3.87 ～21.26 NaCl.wt％,平均盐度为13.20 NaCl.wt％,进而计算了成矿溶液的密度（平均为0.851 g/cm）和矿床的成矿深度（平均约为0.80 km）,表明徐山钨矿为浅成中温热液矿床,成矿作用与该地区中生代火山-次火山活动强烈密切相关.Geological fluid can play a very important medium role in all kinds of mineralizing process,is one of the main contents of research on mineral deposits.Fluid Inclusion research is an important aspect in present research of ore forming fluid.This paper studies the fluid inclusions in quartz and topaz occurring in wolframitequartz-veins,which mainly includes microthermometry.Experimental results show that fluid inclusions in early bismuthinite-wolframite-quartz vein are mainly of H2O-NaCl type,homogenization method to the measured temperature of 190.4 ～446 ℃,the average temperature is 290.8 ℃,salinity of 3.87 NaCl wt％ ～ 21.26 NaCl wt％,13.20 NaCl.wt％ average salinity.Then calculated the density of ore-forming solution （average density is 0.851 g/cm）,and formation depth （is 0.62 km）.It shows that the XuShan tungsten is epithermal exothermal deposit,mineralization is strongly closely related to Mesozoic volcano-volcano activity of the area.

关 键 词：徐山钨矿 流体包裹体 均一温度 盐度 

分 类 号：P617[天文地球—矿床学]