| 中国前寒武纪稀土元素分配模式及演化特征 |
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| 引用本文： | 秦正永,李玉夫. 中国前寒武纪稀土元素分配模式及演化特征[J]. 地球科学与环境学报, 1988, 0(1) |
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| 作者姓名： | 秦正永 李玉夫 |
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| 作者单位： | 天津地质矿产研究所(秦正永)，桂林冶金地质学院(李玉夫) |
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| 摘 要： | 本文对近几年我国前寒武纪稀土元素的分布和演化的研究进行了系统的总结。通过对中国前寒武纪地层中五十余个稀土元素资料的分析,认为前寒武纪稀土总量∑REE随着时代的演化呈现“之”字型变化。太古代与元古代的稀土元素模式有着截然的区别,几个重要地质时代的界线处为∑REE变化的拐点,但从太古代至太古代的总体趋势还有增高显示。此外,文章还讨论了稀土元素在不同岩性中的分配状况。
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| 关 键 词： | 稀土元素 分配模式 元古代 太古代 |
REE DISTRIBUTION PATTERN AND EVOLUTION OF PRECAMBRIAN IN CHINA |
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| Qin Zhegyong. REE DISTRIBUTION PATTERN AND EVOLUTION OF PRECAMBRIAN IN CHINA[J]. Journal of Earth Sciences and Environment, 1988, 0(1) |
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| Authors: | Qin Zhegyong |
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| Affiliation: | Qin Zhegyong ( Tianjin Institute of Geology and Mineral Resources )Li Yufu ( Guilin College of Geology ) |
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| Abstract: | Recent investigation of REE distribution pattern and evolution of Precambrian in China has been summariesed. It shows that the total REE displays a zigzag evolution pattern with time.The pattern of Archaean is distinctively different from that of Proterozoic rocks. The sudden changes took place at the certain geological boundaries .of important significance. In general the REE content increases from Archaean to Froterzooic. The REE patterns in different rocks are also discussed. |
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| Keywords: | REE ( rare earth elements ) distribution pattern Archaean Proterozoic. |
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