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在小南山矿体上,在地表及坑道中采集了石英样品及全岩样品,石英样品处理后用来研究热晕;全岩样品陶洗烘干,用来研究蒸发晕。采用爆裂法测定单矿物的形成温度和矿物岩石中包果体的爆裂脉冲数。由实验结果可看出:不论是地表还是各中段取得样品,爆裂温度都能较清楚的圈定出该矿脉带,即主要脉带处于温度最高位置,向周围温度降低,有较明显的热晕存在,在垂直方向上,也有一定的温度梯度变化。存在于矿床周围的这种热晕,可指导我们寻找热液盲脉,看来是一种有前景的地球化学普查方法。蒸发晕试验曲线,其异常部分,基本和脉体吻合,看来寻找热液盲脉具有一定的效果,曲线形态,与化探F、Sn元素的原生晕曲线很相似。初步认为可用来作为寻找同类矿床地表细脉带及圈定其范围的标志,继而可找寻深部盲脉。总观现状,预料“蒸发晕找矿”在我国不久会成为一种效果并不亚于原生晕的找矿新方法。
Quartz samples and whole rock samples were collected from the surface and tunnel at Xiaonan Mountain ore body. The quartz samples were processed to study thermal halo. The whole rock samples were pottery-dried to study evapotranspiration. Burst method was used to determine the formation temperature of single minerals and burst pulses of bagged fruit in mineral rocks. From the experimental results, it can be seen that no matter whether the samples were taken from the surface or middle sections, the rupture zone could be clearly delineated by the burst temperature. That is, the main pulse band was at the highest temperature and decreased to the ambient temperature with obvious thermal halo In the vertical direction, there is also a certain temperature gradient. The thermal halo that exists around the deposit can guide us through the search for hydrothermal blind veins and appears to be a promising method of geochemical census. Evapotranspiration test curve, the abnormal part, basically consistent with the veins, it seems to find hydrothermal veins have some effect, curve morphology, and the F, Sn elements of the primary halo curve is very similar. It is initially thought that it can be used as a marker for finding the fine vein belt on the surface of the same type of deposit and delineating its scope, and then the deep blind vein can be found. Looking at the status quo, it is expected that “evaporization prospecting” will soon become a new prospecting method with the same effect as that of primary halo in our country.