硅酸盐熔体结构与岩浆液态不混溶作用

SILICATE MELT TEXTURE AND LIQUID IMMISCIBILITY

本文简述了硅酸盐熔体结构和岩浆液态不混溶作用的基本特征，计算了玄武岩中基质和液态不混溶共轭熔体对（富铁相和富硅相）的NBO／T值，发现三者具有不同的熔体结构（NBO／T值明显不同），据此总结出硅酸盐熔体结构与岩浆液态不混溶作用之间的内在联系。同时利用硅酸盐熔体结构解释了组分对岩浆液态不混溶作用的影响。

This paper presents the features of silicate melt texture and liquid itnrniscibility. The calculatedNBO/T vaues show that the melt textures of mesostases and immiscible iron-rich and silica-rich glasses in basalts are different, and there exist internal relations between silicate melt texture and liquid immiscibility. On the other hand, based on the silicate melt texture the component influence on liquidimmiscibility is explained.