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1976年以来,我队在广西两江铜矿区开展热晕、蒸发晕找矿试验工作,用爆裂法测定了各种单矿物和岩石样品848个.获得的资料表明,该铜矿是一个多阶段成矿的高-中温热液矿床,铜矿物主要富集于硫化物阶段.由于这一阶段具有特定的成矿温度范围,这就为应用单矿物热晕图预测矿体富集地段,提供了可能性.同时,矿床围岩(主要是砂岩)在成矿过程中受热液影响,产生并保留了一定数量的包裹体,形成了蒸发晕带,其范围比常最元素原生晕的扩散距离大十多倍甚至几十倍.因此,蒸发晕作为一种找矿辅助手段,对捉高找矿效果也有一定实际意义.矿区地质概况矿区位于广西山字型构造西翼靠近弧顶的转折部位、大明山多金属成矿带的中部.矿床赋存于寒武系浅海相碎屑岩及碳酸盐岩出露的小“天窗”中,四周被几百米厚的
Since 1976, our team has carried out thermal halo and evaporization exploration work in the Liangjiang copper mine in Guangxi and determined 889 single mineral and rock samples by the burst method.The obtained data shows that the copper mine is a multi-stage Mineralization of the high - moderate temperature hydrothermal deposits, copper minerals are mainly concentrated in the sulphide phase.Because of this stage has a specific metallogenic temperature range, which is the application of single mineral thermal halo prediction of ore-rich lots, Provided the possibility that the surrounding rock of the deposit (mainly sandstone) was affected by the hydrothermal fluid in the process of metallogenesis, a certain number of inclusions were formed and retained, forming evapor Diffusion distance greater than ten times or even several times.Therefore, evapotranspiration as a means of prospecting aids, also has some practical significance for the high prospecting effect.Mineral geological prospectingMining areaIs located in the west of Guangxi mountain-shaped structure near the top of the arc Turning point, the central part of the Damingshan polymetallic metallogenic belt.The deposits occur in the small “skylight ” exposed by shallow marine clastic rocks and carbonate rocks in the Cambrian, surrounded by a few hundred meters thick