| 变形变质岩熔融及其与化学成分的关系研究 |
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| 引用本文： | 陶于祥,谢鸿森.变形变质岩熔融及其与化学成分的关系研究[J].矿物学报,1995,15(3):332-337. |
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| 作者姓名： | 陶于祥 谢鸿森 |
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| 作者单位： | 中国科学院地球化学研究所!贵阳，550002，中国科学院地球化学研究所!贵阳，550002，中国科学院地球化学研究所!贵阳，550002 |
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| 摘 要： | 高温高压熔融实验结合岩石化学分别研究表明：在无水体系中，变形变质岩的初熔温度随ＦｅＯ＋ＭｇＯ＋ＣａＯ＋ＴｉＯ２、Ａｌ２Ｏ３等的增高而增高；随ＳｉＯ２、Ｋ２Ｏ＋ＮａＯ含量的增高而降低。此外，岩石的变形变质程度、压力也对岩石的初熔产生重大影响。本文还初步探讨了ＲＥＥ与岩石熔融的关系。金属元素在熔体与残留体的分配研究表明：常量金属元素在熔体中相对富集，在熔体与残留体之间的分异度（│ｌｇＤｉ│随ＳｉＯ２的
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| 关 键 词： | 变质岩 熔融 化学成分 岩石化学 |
RELATIONSHIP BETWEEN MELTING OF DEFORMED-METAMORPHOSED ROCKS AND THEIR CHEMICAL COMPOSITION |
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| Tao Yuxiang, Xie Hongsen, Zhang Yueming.RELATIONSHIP BETWEEN MELTING OF DEFORMED-METAMORPHOSED ROCKS AND THEIR CHEMICAL COMPOSITION[J].Acta Mineralogica Sinica,1995,15(3):332-337. |
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| Authors: | Tao Yuxiang Xie Hongsen Zhang Yueming |
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| Abstract: | Partial melting experiments at high temperature and high pressure in combination with thepetrochemistry data show that the starting melting temperature of rocks tends to increase with in-crcasing FeO' +MgO+CaO+TiO2 and Al2O3 and decreasing K2O+Na2O and SiO2 in an anhydroussystem. Moreover, the starting melting temperature of rocks is also controlled by metamorphic de-gree, pressure and some other factors. The relationship between REE and rock partial melting isalso discussed in the paper. The partition of metallic elements between melt and remains showsthat the major elements are relatively concentrated in the melt body and their differentiation degree(gDi )between melt and remains tends to increase with decreasing SiO2 and increasing basic com-ponents; trace metallic elements follows a partition law very different from and more complicatedthan the major metallic elements. |
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| Keywords: | deformed-metamorphosed rock anhydrous system melting experiment petrochemistry redistribution |
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