柴河铅锌矿碳酸盐矿物热发光标型及其意义

TYPOMORPHIC CHARACTERISTICS AND SIGNIFICANCE ON THERMAL LUMINESCENCE OF CARBONATE MINERALS ON Pb-Zn DEPOSITS AT CAIHE

作者对柴河铅锌矿碳酸盐矿物热发光特征进行了系统研究。建立了含矿碳酸盐矿物的热发光标型。含矿碳酸盐矿物热发光具有发光强度显著衰减,发光中温峰消失或不明显,高温峰平缓,发光曲线呈钝型的特点。碳酸盐矿物热发光测定作为一种矿物学找矿方法,应用于中元古宙层控碳酸盐岩铅锌矿床的找矿实践中,不仅可以直接发现矿化和推断断裂构造,而且可以圈定热发光低强度区,从而缩小找矿靶区,为普查找矿提供依据。

The author made a systematic study on thermal luminescence characteristics of carbonate minerals in Pb-Zn deposits at Caihe, then set up a thermal luminescence typomorph of ore-bearing carbonate minerals, which the luminous intensity obviously decayed, the mesothermal-peaks vanished or were not clear, the megathermal-peaks were gentle, the luminescence curve was Obtuse. The thermal luminescence determi- nation of carbonate minerals is used to look for Pb-Zn deposits of mid-proterozoic stratabound carbonate rocks. It can not only be used to directly find mineralization, and also contour low-intensity zone of thermal luminescence to reduce target region, provide evidence for surveying and looking for mineral deposits.