湘西金矿外围石英脉含金性评价的矿物学标志

笔者对湘西金矿外围(东部)层间石英脉的主要载金矿物——石英进行了含金性评价的矿物学研究,除了石英的标型特征及包裹体评价之外,还着重进行了谱学评价,包括红外光谱(IR)、电子顺磁共振谱(EPR)、热发光光谱(TL)、X射线粉晶衍射谱(XRPD)以及阴极发光光谱(CL)等近代测试新方法,其中运用阴极发光光谱对石英脉含金性进行评价尚属首次,并据总结出的石英脉含金性评价的矿物学标志,预测了外围四个工作小区的成矿远景。

MINERALOGICAL CRITERIA FOR EVALUATION OF GOLD-BEARING PROPERTY OF QUARTZ VEIN IN THE OUTSKIRTS OF XIANGXI GOLD DEPOSIT

A mineralogical study on the evaluation of gold-bearing property of quartz, one of the main gold carrier minerals in the interlayer quartz veins in the outskirts(east)of Xiangxi gold deposit, has been conducted by the authors. Besides the evaluation on typomorphic characteristics and inclusion of quartz, emphasis is placed on spectroscopic evaluation, inclu-ding Infrared Spectrscopy(IR), Electron Paramagnetic Resonance(EPR), Thermolumine-scence spectroscopy(TL), X-ray Powder Diffraction Spectroscopy(XRPD)and Cathodolu-minescence Spectroscopy(CL), among which CL was so far for the first time applied to the evaluation of gold-bearing property of quartz veins. Moreover, according to the mineralo-gical criteria for evaluatuion of gold-bearing property of quartz veins summed up from the above studies, prediction is made for the metallogenetic prospects of the four working areas in the outskirts.