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Rare Earth Elements: A Tool for Understanding the Behaviour of Trivalent Actinides in the Geosphere

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Abstract

REE concentrations have been determined in groundwaters, granite and fracture fillings in a restored uranium mine.

The granitoids normalized REE patterns of groundwaters show HREE-enrichment and positive Eu anomalies. This suggests that the REE are fractionated during leaching from the source rocks by groundwaters. Preferential leaching of HREE would be consistent with the greater stability of their aqueous complexes compared to those of the LREE, together with the dissolution of certain fracture filling minerals, dissolution/alteration of phyllosilicates and colloidal transport.

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Authors and Affiliations

  1. Turrero Medioambiente, CIEMAT, Avda. Complutense 22, 28040, Madrid, Spain

    Belen Buil, Paloma Gómez, Antonio Garralón & M. Jesús

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  1. Belen Buil
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  2. Paloma Gómez
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  3. Antonio Garralón
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  4. M. Jesús
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Buil, B., Gómez, P., Garralón, A. et al. Rare Earth Elements: A Tool for Understanding the Behaviour of Trivalent Actinides in the Geosphere. MRS Online Proceedings Library 985, 1106 (2006). https://doi.org/10.1557/PROC-985-0985-NN11-06

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  • DOI: https://doi.org/10.1557/PROC-985-0985-NN11-06

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