包裹体气液相成分在石英脉体含金性评价中的应用  

Application of Inclusion Studies to Ore Potential Evaluation of Gold Quartz Veins

作　　者：邱检生[1] 任启江[1] 王德滋[1] 王玉华[2] 

机构地区：[1]南京大学地球科学系 [2]武警黄金地质研究所

出　　处：《地质与勘探》1993年第2期24-28,共5页Geology and Exploration

摘　　要：峪耳崖、沙溪及德兴矿床脉石英包裹体气液相成分及相应脉体含金量的系统测试,揭示了不同类型的矿床包裹体气液相成分特征上的差异,指出与花岗岩有关的岩浆热液型金矿床石英脉体的含金性主要受包裹体中液相成分控制,而斑岩型铜(金)矿床石英脉体的含金性主要受包裹体中气相成分制约。包裹体中CO_2含量、含盐度、K^+/Na^+及Ca^(2+)/Mg^(2+)等参数可作为石英脉体含金性评价的有效标志。A systematic measurement of gaseous and liquid compositions of inclusions in quartz veins and gold contents of the veins inthe Yuerya,Shaxi and Dexin deposits was made.The results reveal that the gaseous and liquid copositions of inclusions are differ-ent in their characteristics for different types of deposits.The gold ore potentiality of quartz veins in magmatic-hydrothe.rmal golddeoposits related to granite is mainly controlled by the liquid composition of the inclusions,while that in porphyry copper(Au) de-posits is restricted by the liquid composition.Parameters,such as CO_2 contents,salinity K^+/Na^+ and Ca^(2+)/Mg^(2+) of the inclusionsmay be used as useful criteria for ore potential evaluation of gold quartz veins.

关 键 词：矿物包裹体 气液相 石英脉 含金 

分 类 号：P618.510.4[天文地球—矿床学]