Correction to: Ferric/ferrous ratio in silicate melts: a new model for 1 atm data with special emphasis on the effects of melt composition
Correction to: Ferric/ferrous ratio in silicate melts: a new model for 1 atm data with special emphasis on the effects of melt composition
复制标题
修正：硅酸盐熔体中的铁/亚铁比率：1 atm 数据的新模型，特别强调熔体成分的影响
DOI：
10.1007/s00410-018-1537-3
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发表时间：
2018
影响因子：
3.5
通讯作者：
Holtz F.
中科院分区：
文献类型：
--
作者：
Borisov A;Behrens H;Holtz F.
在1300-1500 °C温度范围内，在1atm总压下，研究了MgO和总FeO对多组分硅酸盐熔体中Fe/Fe比的影响。我们表明，这些弱网络改性剂阳离子的加入导致在镁铁质和镁铁质熔体中的Fe 3 +/Fe 2+比的增加。根据现有的和已发表的实验数据，提出了一个新的经验方程来预测铁/亚铁比作为氧逸度，温度和熔体组成的函数。与以前的方程相比，熔体的组成对Fe 3 +/Fe 2+比的影响不仅是由各个氧化物组分的摩尔分数的总和来模拟的。还纳入了其他相互作用术语。所提出的模型的主要优点是其适用性广泛的组成范围。然而，不推荐将其应用于长英质熔体（> 68重量% SiO2）。与以前的模型相比，这个方程和差异的其他优点进行了讨论。
The effect of MgO and total FeO on ferric/ferrous ratio in model multicomponent silicate melts was investigated experimentally in the temperature range 1300–1500 °C at 1 atm total pressure in air. We demonstrate that the addition of these weak network modifier cations results in an increase of Fe3+/Fe2+ratio in both mafic and silicic melts. Based on present and published experimental data, a new empirical equation is proposed to predict the ferric/ferrous ratio as a function of oxygen fugacity, temperature and melt composition. In contrast to previous equations, the compositional effect of melts on the Fe3+/Fe2+ratio is not only modeled by the sum of the molar fraction of the individual oxide components. Additional interactions terms have also been incorporated. The main advantage of the proposed model is its applicability for a wide compositional range. However, its application to felsic melts (> 68 wt% SiO2) is not recommended. Other advantages of this equation and differences when compared with previous models are discussed.