扫描电镜-能谱在单个包裹体物质组成研究中的应用

Studying of the composition of the single fluid inclusion using scanning electron microscopy and energy dispersive analysis.

利用扫描电镜 -能谱对四川冕宁稀土矿床早期萤石的单个流体 -熔融包裹体中的成分进行了分析 ,发现包裹体内流体相阳离子以 Na、Ca、K、Ba为主 ,阴离子以 SO4、F、Cl为主 ,有意义的是在包裹体中发现了 L a、Ce、Nd等稀土元素 ,其中矿化元素铈的含量最高。

Scanning electron microscopy combined with energy dispersive analysis has been used to detect the composition of single fluid melt inclusion in fluorite formed in early stage Mianning REE deposit of Sichuan, China, The energy dispersive spectra show that the cations are dominated by Na, Ca, K, Ba, and anions by SO 4, F, Cl. Significantly, high contents of LREEs, La, Ce, Nd have been observed in the fluid inclusion, of which the content of the ore forming element Ce is the highest. These results further prove that the Mianning REE deposit in Sichuan is a hydrothermal deposit genetically related to salt melt.