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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。
In this paper, the basic characteristics of the silicate melt structure and the immiscibility of magma are briefly introduced. The NBO / T values of the matrix-rich and liquid-immiscible conjugated melts (iron-rich phase and silicon-rich phase) , And found that the three have different melt structures (NBO / T values are significantly different), thus concluded that the intrinsic relationship between the silicate melt structure and the liquid immiscibility of magma. At the same time, the influence of components on the liquid immiscibility of magma was explained by using silicate melt structure.