This study compares four sets of solution (or activity-composition) models using two internally consistent thermodynamic datasets for calculating isochemical phase diagram sections of six partial melting experiments covering a wide range of metasedimentary bulk compositions. Compared parameters are: (1) biotite-breakdown temperatures; (2) parageneses of Fe–Mg phases and Ti-oxides; (3) proportion of biotite, garnet, liquid and plagioclase; (4) Mg# of biotite, garnet and liquid and the anorthite content of plagioclase. Results reveal significant differences between sets that are mainly related to the construction of the biotite solution, with the model of Tajčmanová et al. (2009) yielding better results for the majority of investigated parameters. Owing to the success of the investigated set of solution models at reproducing the proxy that constitutes partial melting experiments, but also at reproducing natural observations as published elsewhere, it is suggested that this biotite model should be used in the Ti–Mn–Na–Ca–K–Fe–Mg–Al–Si–H–O system for phase equilibrium (forward) modeling of metasediments.

中文翻译：

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部分熔化实验的相平衡（正向）建模的测试解模型

本研究使用两个内部一致的热力学数据集来比较四组溶液（或活性组成）模型，以计算涵盖广泛变质沉积整体组成的六个部分熔融实验的等化相图部分。比较参数为： (1) 黑云母分解温度；(2) Fe-Mg相和Ti-氧化物的共生体；(3) 黑云母、石榴石、液体和斜长石的比例；(4) 黑云母、石榴石和液体的Mg#和斜长石的钙长石含量。结果揭示了主要与黑云母溶液构建有关的集合之间的显着差异，与 Tajčmanová 等人的模型。(2009) 对大多数调查参数产生了更好的结果。