| 广西栗木稀有金属花岗岩的稀土元素配分模式及其意义 |
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| 引用本文： | 徐启东
,章锦统.广西栗木稀有金属花岗岩的稀土元素配分模式及其意义[J].地球科学,1988(2). |
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| 作者姓名： | 徐启东 章锦统 |
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| 摘 要： | 本文探讨了栗木稀有金属花岗岩稀土元素配分模式的特点。含矿花岗岩和不含矿花岗岩含稀土总量均低,但其稀土配分模式差别甚大。该岩体可能是南岭地区由成分相当于翁岗岩浆的碱长花岗岩浆直接结晶形成的,而不是由正常花岗岩浆演化到晚期的残余岩浆结晶形成的。
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| 关 键 词： | 铌钽花岗岩 稀土元素 岩浆性质 翁岗岩 广西 |
REE PATTERN OF THE RARE ELEMENT-BEARING GRANITE FROM LIMU, GUANGXI AND ITS SIGNIFICANCE |
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| Xu Qidong Zhang Jintong.REE PATTERN OF THE RARE ELEMENT-BEARING GRANITE FROM LIMU, GUANGXI AND ITS SIGNIFICANCE[J].Earth Science-Journal of China University of Geosciences,1988(2). |
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| Authors: | Xu Qidong Zhang Jintong |
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| Institution: | China University of Geosciences |
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| Abstract: | The rare element - bearing granite from Limu is an alkali - feld -spar granite. This paper describes characters of REE in the granites. There are some peculiar features of REE. First, either un - mineralized intrusion or mineralized intrusion have very low total abundances of REE. Second, there is the obvious difference in REE distribution pattern between un-mineralized and mineralized intrusions and so on. Authors have analysed some causes that led appearance of these features and considered that this granite may be the Product which was crystalized directly from a special alkali - feldspar granitic magma. This special magma is not a residual melt that is the latest part of a nor-mal granitic magma as a series of granites crystallized from the normal magma. It may be really similar to the ongonitic magma in the magma - forming mecha-t nism and the composition. |
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| Keywords: | Nb-Ta-bearing granite rare-earth element magmatic property ongonite Guangxi |
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