论文部分内容阅读
对山西石炭纪铝土矿中钐 (Sm )和钕 (Nd)元素含量的化学制备和同位素质谱稀释分析方法进行了详细探讨 ,采用固体同位素质谱技术发现了山西古风化壳型稀土金属矿床。可能总稀土的强富集是在本区形成风化壳吸附型轻稀土金属矿床的主要成因。研究结果表明 :在山西沁源大峪和平陆曹川的稀土含量达到风化壳吸附型轻稀土金属和稀土铝土矿矿床工业指标。山西古风化壳型稀土金属矿床是在华北地区首次发现的稀土金属矿床。
The chemical preparation and isotope mass spectrometric dilution analysis of samarium (Sm) and neodymium (Nd) in Carboniferous age bauxite in Shanxi Province were discussed in detail. The ancient weathering crust type rare earth metal deposit was discovered by solid isotopic mass spectrometry. It is possible that the strong enrichment of total rare earths is the main cause of formation of weathering-shell adsorbed LREEs in this area. The results show that the rare earth content of Dayuan and Luchuan of Qinyuan in Shanxi reaches the industrial index of light rare earth metal and rare earth bauxite deposit with weathering shell adsorption. Shanxi ancient weathering shell type rare earth metal deposits is the first discovered in North China rare earth metal deposits.