武功山地区青龙山花岗岩石英脉流体包裹体研究  

Fluid Inclusion Research on Granite Quartz Vein of Qinglong Mountain in Wugong Mountain

作　　者：刘守林 陈添乐[1,2] 胡诗倩 郑红雷[1,2] 刘印明[1,2] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室,湖南长沙410083 [2]中南大学地球科学与信息物理学院,湖南长沙410083

出　　处：《南方金属》2015年第4期43-46,50,共5页Southern Metals

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，是地质学研究的主要内容一，而流体包裹体则是当前对成矿流体研究的一个重要方法．武功山地区花岗小岩体与周边的钨、锡多金属矿床有密切的空间和时间关系．因此，对本区花岗岩体的研究具有十分重要的意义．文章在详细地岩相学研究基础上，对武功山地区青龙山花岗岩石英脉的流体包裹体进行了显微测温研究．实验结果表明，该地区的岩体石英流体包裹体主要为富液相的气液两相包裹体，运用均一法测温，测得的均一温度范围为115～380℃，平均温度为211qC．盐度范围为1．65NaCl．wt％～20．23NaCl．wt％，平均盐度为11．69NaCl．wt％．进而计算了岩体溶液的密度和成岩深度．对比结果反映了该地区岩体与浒坑钨矿、徐山钨矿等出露的岩体有相似的地质流体．说明在本地区可能存在钨锡多金属的找矿前景．The fluid plays a very important role as a medium in all sorts of mineralization geologically, which is the main research content in geology. Also the fluid inclusion is one of the important study methods of ore-forming fluid. Wugong Mountain has a close relationship between the small granite and the surrounding tungsten-tin deposit in space and time. Therefore, the research on the granite rock mass is of great significance. In this paper, basely on a detailed petrographic study, the authors make the study of microscopic temperature measurement of granite quartz vein fluid inclusions of Qin- glong Mountain in Wugong Mountain. The experimental results show that the region of fluid inclusion in quartz rock mass is mainly the gas-liquid- two- phase- inclusion of rich liquid phase. By the method of homogenization experimental tempera- ture, the range of homogenization temperature is about 115 - 380~C , and the average temperature is 211 ~C. The range of salinity is aboutl. 65 NaC1. wt% ~ 20. 23NaC1. wt%, and the average salinity is 11.69NaC1. wt%. Then, the authors cal- culate the density and depth of rock mass of mineralization. The comparison results reflect that the rock mass in the region has the similar geological fluid with Hukeng and XuShan tungsten ores. It is promising that it may exist a tungsten-tin poly- metallic deposit in the region.

关 键 词：均一测温 流体包裹体 石英脉 花岗岩体 武功山 

分 类 号：P584[天文地球—岩石学]