Abstract
Rare-Earth Element (REE) concentrations in briny groundwaters are very low, and range from ppb to ppt levels. REE can be measured at these low levels using prechemistry to concentrate the REE, postchemistry as an REE group separation following neutron activation, and reactivation for chemical yields. The brine solutions appear to be stable with respect to trace elements (such as the REE) over the four years of sample storage. The brine REE patterns are highly fractionated from light REE to heavy REE, including a negative Eu anomaly. The REE patterns appear to be characteristic of each formation and its source region.
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Laul, J.C., Lepel, E.A. & Smith, M.R. Trace Rare-Earth Element analysis of briny groundwaters. Journal of Radioanalytical and Nuclear Chemistry, Articles 123, 349–363 (1988). https://doi.org/10.1007/BF02036402
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DOI: https://doi.org/10.1007/BF02036402