| 新疆贝勒库都克锡矿带含锡花岗岩稀土元素特征及成因 |
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| 引用本文： | 吴郭泉.新疆贝勒库都克锡矿带含锡花岗岩稀土元素特征及成因[J].桂林工学院学报,1994(3). |
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| 作者姓名： | 吴郭泉 |
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| 作者单位： | 桂林工学院隐伏矿床预测研究所 |
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| 摘 要： | 贝勒库都克锡矿带花岗岩分为钙碱性和亚碱—碱性２类。稀土元素地球化学研究表明，前者具Ⅰ型花岗岩特征，后者中的亚碱性具Ｓ型花岗岩特征，而碱性则具Ａ型花岗岩特征．稀土元素定量模型计算显示碱性花岗岩是由深部岩浆结晶分异形成，其中，萨北岩体形成时有地壳物质的加入。锡矿主要与晚期分异程度高的亚碱和碱性花岗岩有关。
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| 关 键 词： | 碱性花岗岩，稀土元素，岩石成因，锡矿床，成矿带，新疆 |
THE REE CHARACTERISTICS AND THE GENESIS SIGNIFICANCE OF STANNIFEROUS GRANITES IN THE BEILEKUDUK TIN METALLOGENIC BELT, XINJIANG |
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| Wu Guoquan.THE REE CHARACTERISTICS AND THE GENESIS SIGNIFICANCE OF STANNIFEROUS GRANITES IN THE BEILEKUDUK TIN METALLOGENIC BELT, XINJIANG[J].Journal of Guilin University of Technology,1994(3). |
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| Authors: | Wu Guoquan |
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| Abstract: | The granites of the Beilekuduk tin metallogenic belt are divided into two types: calc-alkali granites and subalkali--alkali granites. According to the REE geochemical characteristics, the calc-alkali is I-type granites, the subalkali is S-type and the alkali is A-type. REE quantitative model calculation shows that alkali granites were formed as a result of crystallization differentiation of deep magma from which Sabei granite body was formed with carriers of crust materials. Tin deposits are genetically related to the subalkali and alkali tin-bearing granites formed by high degree differentiation at the later stage of magmatic evolution. |
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| Keywords: | alkali-granite REE rock genesis tin deposit metallogenic belt Xinjiang |
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