| The Mobility of Rare—Earth Elements During Hydrothermal Activity：A Review |
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| 引用本文： | 熊永良,翟裕生.The Mobility of Rare—Earth Elements During Hydrothermal Activity：A Review[J].中国地球化学学报,1991,10(4):295-306. |
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| 作者姓名： | 熊永良 翟裕生 |
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| 作者单位： | [1]DepartmentofGeology,UniversityofAlberta,Edmonton,Alberta,CanadaT6G2E3 [2]ChinaUniversityofGeosciences,Be |
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| 摘 要： | The mobility of the rare-earth elements(REE)during hydrothermal activities is increasingly documented.Geological and experimental evidence suggests that REE may be mobile in solutions rich in F^-,Cl^-,HCO3^-,CO^2- 3,HPO4^2-,PO4^3-,or in combinations of the above ligands,even though little has been known about which ligand or which combination is most effective in mobilizing REE. The fractionation of REE resulting from hydrothermal activities is inconsistent.One set of field data implies the prererential mobility of the light rare-earth elements(LREE).whereas another set of field observations indicates the dominant mobilization of the heavy rare earth elements(HREE),and some theoretical prediction is comtradictory to the field evidence.The Eu anomalies due to hydrothermal activities are complex and plausible explanation is not available.The existing experimental approaches dealing with REE are not adequate for explanation ofREE behaviour in aqueous solutions.Systematic experimental approaches are suggested.
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| 关 键 词： | 稀土元素 迁移率 热液活动 地球化学 地质构造 富集 |
The mobility of rare-earth elements during hydrothermal activity: A review |
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| Xiong Yongliang,Zhai Yusheng.The mobility of rare-earth elements during hydrothermal activity: A review[J].Chinese Journal of Geochemistry,1991,10(4):295-306. |
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| Authors: | Xiong Yongliang Zhai Yusheng |
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| Institution: | (1) Department of Geology, University of Alberta, T6G 2E3 Edmonton, Alberta, Canada;(2) China University of Geosciences, 100083 Beijing, China |
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| Abstract: | The mobility of the rare-earth elements (REE) during hydrothermal activities is increasingly documented. Geological and experimental
evidence suggests that REE may be mobile in solutions rich in F-, Cl-, HCO3
-, CO3
2-, HPO4
2-, PO4
3-, or in combinations of the above ligands, even though little has been known about which ligand or which combination is most
effective in mobilizing REE. The fractionation of REE resulting from hydrothermal activities is inconsistent. One set of field
data implies the preferential mobility of the light rare-earth elements (LREE), whereas another set of field observations
indicates the dominant mobilization of the heavy rare-earth elements (HREE), and some theoretical prediction is contradictory
to the field evidence. The Eu anomalies due to hydrothermal activities are complex and plausible explanation is not available.
The existing experimental approaches dealing with REE are not adequate for explanation of REE behaviour in aqueous solutions.
Systematic experimental approaches are suggested. |
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| Keywords: | |
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