| 含铝硅酸盐1)吉布斯生成自由能的预测及Y.塔达方法向高温条件下推引的可能性 |
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| 引用本文： | 高平,张流.含铝硅酸盐1)吉布斯生成自由能的预测及Y.塔达方法向高温条件下推引的可能性[J].地质科学,1982,0(3):299-308. |
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| 作者姓名： | 高平 张流 |
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| 作者单位： | 1. 中国科学院地球化学研究所;2. 国家地震局地质研究所 |
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| 摘 要： | 近几年来,Y.塔达等人3-7]建立了一种预测化合物吉布斯生成自由能的经验方法。
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| 关 键 词： | , |
| 收稿时间： | 1980-07-12 |
| 修稿时间： | 1980-07-12; |
THE PREDICTION ON GIBBS ENERGIES OF FORMATION OF AL-BEARING SILICATES AND THE POSSIBILITY OF USE OF TARDY’S METHOD TO HIGH TEMPERATURE CONDITION |
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| Gao Ping,Zhang Liu.THE PREDICTION ON GIBBS ENERGIES OF FORMATION OF AL-BEARING SILICATES AND THE POSSIBILITY OF USE OF TARDY’S METHOD TO HIGH TEMPERATURE CONDITION[J].Chinese Journal of Geology,1982,0(3):299-308. |
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| Authors: | Gao Ping Zhang Liu |
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| Institution: | 1. Institute of Geochemistry, Academia Sinica, Guiyong;2. Institute of Geology, National Bureau of Seismology, Beijing |
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| Abstract: | The authors present an empirical formula calculating Gibbs energies of formation of Al-bearing silicates.It is written as follows:△silicate(Al)=-1.46×n1n2/n1+n2(△OM2-+47.33)Kcal/mol The statistic results show that,for 21 numbers,the relative coefficient between and n1+n2/n1n2 △silicate is-0.980; given △OM2-the standand deviation S=2.7 Kcal/mol.Furthermore the authors think that the formula for calculating Gibbs energies of formation of monovalent and divalent metal silicate,developed by Y.Tandy et al.,can be extended to silicates with high valent cation.Gibbs energies of formation of some minerals have been predicted,such as: Lai-hunite (Fe1.003+ Fe582+ Si96O4)-311.1±4,natrosiderite (NaFeSi2O6,)-556.5±4,py-rope (Mg3Al2Si3O12)-1142.4±16.3,Greenlandite (Fe3Al2Si3O12)-1184.1±16.3,Parts-chinite (Mn3Al2Si3O12)-1283.8±16.3,Beryl (Be3Al2Si6O18)-2018.2±21.8 kcal/mol.It is suggested that Y.Tandy et al.’s method can be extended to high temperature condition.For the silicates at 400k and 500k,the empirical formula calculating the Gibbs energies of formation is written:△silicate,400K=1.00×n1n2/n1+n2(△OM400K2-+40.80)Kcal/mol △silicate500K=-0.95×n1n2/n1+n2(△OM500K2-+38.90)Kcal/mol. |
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| Keywords: | , |
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