| 利用原生岩浆定量反演原岩微量元素丰度的方法 |
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| 引用本文： | 杨晓松.利用原生岩浆定量反演原岩微量元素丰度的方法[J].岩石矿物学杂志,1994,13(1):33-41. |
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| 作者姓名： | 杨晓松 |
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| 作者单位： | 中国地质大学地质系 |
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| 摘 要： | 利用同源不同程度平衡部分熔融作用形成的两种原生岩浆岩的微量元素浓度，提出了一种定量反演原岩微量元素丰度的方法。反演前不需要做任何人为假设，为定量研究源区的微量元素地球化学提供了一个有力的手段。对汉诺坝新生代橄榄拉斑玄武岩和碱性玄武岩的成因及地幔源区特征作了讨论。反演结果显示本区地幔相对球粒陨石有过明显的ＲＥＥ富集过程，并且不同的ＲＥＥ富集程度存在显著的差异。
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| 关 键 词： | 岩浆 定量反演 原岩 微量元素 丰度 |
The Application of Primary Magma to the Quantitative Inverse Calculation of Trace Element Abumdances of Source Rocks |
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| Yang Xiaosong.The Application of Primary Magma to the Quantitative Inverse Calculation of Trace Element Abumdances of Source Rocks[J].Acta Petrologica Et Mineralogica,1994,13(1):33-41. |
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| Authors: | Yang Xiaosong |
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| Abstract: | Using trace element concentrations of consanguineous primary magmas formed by different degrees of equilibrium partial melting, the author has put forward an inverse method for quantitatively calculating trace element abundances of source rocks. In the inverse calculation, there is no need to assume parameters such as C0, D and F, so it provides an effective means for studying geochemical composition of the provenance.In addition, the paper has dealt with the genesis of the Cenozoic olivine tholeiites and alkali basalts and the characteristics of the upper mantle in
Hannuoba area. The inverse results show that the upper mantle had obviously
undergone enrichment of REE relative to chondrite before the melting process, with different rare earth elements experiencing obviously different degrees of enrichment. |
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| Keywords: | equilibrium partial melting quantitative inverse calculation initial abundance of trace element Hannuoba |
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