摘要
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 extraordinary concentrations for Sm, Nd and other rare earth elements from Carboniferous bauxite in Shanxi massif were investigated by chemical preparations and isotope dilution mass spectrometry. The palaeoweathering type rare earth deposit was discovered by solid isotope mass spectrometry. Especially, the strong concentration of ΣREE make it possible to form the weathering crust absorption-type LREE deposit in the area. The result showed the amount of rare earth in Dayu, Qinyuan and Caochuan, Pinglu in Shanxi province was up to the industrial level of weathering crust absorption-type LREE mineral deposits and REE-bauxite deposits. According to the national and international reports, Palaeoweathering type rare earth element deposits from Shanxi was first discovered in North China.
出处
《质谱学报》
EI
CAS
CSCD
2003年第3期394-397,共4页
Journal of Chinese Mass Spectrometry Society
基金
国家自然科学基金资助项目 (编号 4 0 2 7110 3)
国土资源部"山西铝土矿矿床成因与矿床模式研究"基金资助项目 (原地矿部治科定 :94 - 0 5 )
南京大学科研处应用开发基金
南京大学成矿作用国家重点实验室资助项目
南京大学分析测试基金资助项目
