微斜长石可见光吸收技术在金矿找矿中的应用  

APPLICATION OF VISIBLE ABSORPTION SPECTRAL TECHNIQUE ON MICROCLINE IN GOLD PROSPECTING

作　　者：边秋娟[1] 张汉凯[1] 肖平[1] 

机构地区：[1]中国地质大学,湖北武汉430074

出　　处：《地质科技情报》2001年第1期31-34,共4页Geological Science and Technology Information

摘　　要：含金性不同的微斜长石在偏振光条件下的可见光吸收光谱 ,与其不同程度地含有过渡金属离子密切相关。微斜长石对6 0 0～ 6 5 0 nm光波的吸收谱线特征 ,可以用来评价寄主脉的含金性 ,作为找寻石英钾长石脉型金矿床的重要矿物学标志 。Visible absorption spectra of microclines varying in gold content under the polarized light are closely related to the content of transition metal ions. The spectral characteristics of microclines ranging from 600 nm to 650 nm can be used to evaluate gold mineralization in their lodging quartz - K-feldspar veins. This paper has summed up the mineral exploration criteria of the quartz - K-feldspar - vein-type gold deposits, and explored a new method for gold prospecting.

关 键 词：徽斜长石 可见光吸收光谱 过渡金属离子 金矿床 找矿方向 评价 

分 类 号：P618.510.8[天文地球—矿床学]