石英流体包裹体的岩相学和热爆参数填图在前河金矿中的应用  

APPLICATION OF MAPPING OF PETROGRAPHY AND DECREPITATION PARAMETERS OF FLUID INCLUSIONS IN QUARTZ AT QIANHE GOLD DEPOSIT

作　　者：要梅娟[1,2] 申俊峰[1,2] 李胜荣[1,2] 曹烨[1,2] 

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [2]中国地质大学岩石圈构造、深部过程及探测技术教育部重点实验室,北京100083

出　　处：《地质与勘探》2008年第6期56-61,共6页Geology and Exploration

基　　金：高等学校学科创新引智计划(编号:B07011)资助

摘　　要：文章从石英流体包裹体的研究入手，采用矿物学填图的方法，探讨了流体包裹体的岩相学特征和爆裂温度等热爆参数方面的成因矿物学信息。岩相学填图表明，包裹体大小在8-11μm之间，分布密度越大的样品时应的金矿化越好；依据石英起爆温度、爆裂温度范围、热爆曲线形态及主爆峰值等特点，将矿区所有样品的石英热爆裂归纳为4种基本类型，起爆温度低且具主爆裂峰的I型曲线指示有利于金矿化的地段，爆裂峰越高和爆裂温度区间越宽的样品对应的金矿化越好。流体包裹体的爆裂法测温在找矿实践中取得了较好的效果，并通过此方法初步预测了前河金矿区的深部远景。By the study on fluid inclusions in quartz and application of mineralogy mapping, this paper discusses genetic mineralogy information, which includes the petrography and decrepitation temperature of fluid inclusions in quartz. Petrography mapping indicates the inclusions which are between 8- 11 μm and high density distribution are good for ore formation. According to beginning decrepitation temperature of fluid inclusion in quartz, decrepitation temperature range, decrepitation curve morphology, and main decrepitation curve characteristics, decrepitation curve can be categorized into four kinds, the I type decrepitation curve with lower beginning decrepitation temperature and a main decrepitation curve corresponds to the higher gold grade. Higher decrepitation curve and wider range of decrepitation temperature indicate better gold mineralization. Fluid inclusion temperature measurement is a very important method for ore prospecting, and ore forecasting in the depth of the Qianhe gold deposit was predicted.

关 键 词：流体包裹体 矿物学填图 热爆特征 前河 金矿 

分 类 号：P618.51[天文地球—矿床学]