| 花岗岩锆石中的微量元素的配分特征 |
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| 引用本文： | 汪相 Pupin,JP.花岗岩锆石中的微量元素的配分特征[J].地质科学,1992,0(2):131-140. |
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| 作者姓名： | 汪相 Pupin JP |
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| 作者单位： | 1. 南京大学地球科学系;2. 法国尼斯大学岩石矿物实验室 |
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| 摘 要： | 花岗岩锆石中的微量元素(铪、铀、钇、钍、磷)的电子探针分析表明,这些元素在花岗岩锆石中皆以类质同象形式赋存,其中最小离子半径的铪以无序固溶体形式与锆完全相溶,而钇和磷在较低温度的条件下常常呈磷钇矿与锆不完全相溶;它们在花岗岩锆石中的地球化学行为是随着结晶环境的物理化学条件的变化而分异的,因此,对它们的分析研究可以揭示花岗岩的成因特征。
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| 关 键 词： | 锆石 微量元素(铪、铀、钇、钍、磷) 类质同象置换 花岗岩成因 |
| 收稿时间： | 1990-10-01 |
| 修稿时间： | 1990-10-01; |
DISTRIBUTION CHARACTERISTICS OF TRACE ELEMENTS IN ZIRCONS FROM GRANITIC ROCKS |
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| Wang Xiang.DISTRIBUTION CHARACTERISTICS OF TRACE ELEMENTS IN ZIRCONS FROM GRANITIC ROCKS[J].Chinese Journal of Geology,1992,0(2):131-140. |
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| Authors: | Wang Xiang |
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| Institution: | 1. Department of Earth Sciences, Nanjing University;2. Laboratory of Petrology-Mineralogy, University of Nice, France |
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| Abstract: | The microprobe analysis of trace elements (Hf,U,Y,Th,P) demonstrates that these elements occur in the form of isomorphic substitution in zircons from granitic rocks.Among these elements,hafnium with the most little ionic radio completely dissolves in zircons in the form of disorderly solid solution,but yttrium and the coupled phosphore incompletely sub- stitutes for zirconium and silicium at lower temperature respectively.The results show that the geochemical behaviour of these elements in zircon from granitic rocks are varied with the chan- ge of physico-chemical conditions of crystallization environments,and the investigation of these elements may be applicable to the granite petrogenesis. |
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| Keywords: | Zircon Trace elements( U Y Th P) isomorphic substitution granite petrogenesis |
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