@article{fdi:010094570,
  title = {{L}ocalization and speciation of rare earth elements in mine tailings from ion-adsorption clay deposits, {S}outhern {C}hina : insights from microfocused {X}-ray fluorescence spectroscopy},
  author = {{J}anot, {N}. and {H}uot, {H}ermine and {R}ivard, {C}. and {P}errin, {M}. and {N}oirault, {A}. and {T}ang, {Y}.{T}. and {W}atteau, {F}. and {M}ontarg{\`e}s-{P}elletier, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}conomic exploitation of {I}on-{A}dsorption {R}are {E}arth {E}lements ({REE}s) {D}eposits, a type of ore specific to southern {C}hina, has been traditionally performed by heap leaching, creating large amounts of tailings. {T}o design sustainable reclamation techniques for these sites, an understanding of the speciation of residual {REE}s in the tailings is needed. {T}he aim of the present study was to identify the {REE}-bearing phases in reclaimed and non-reclaimed tailings from a demonstration site in {D}ingnan, {J}iangxi province, {C}hina, in undisturbed soil thin sections using synchrotron-based microfocused {X}-ray spectroscopy. {B}ulk and microscale results showed that {REE}s were concentrated in the fine fraction (<50 ?m), mainly dispersed within a heterogeneous micrometric matrix. {U}sing micro-spectroscopy, micro-hotspots of {C}e({IV}) were evidenced, assigned to {C}e{O}2 microparticles, unaffected by the leaching treatment and dispersed in the tailings. {A}nalyses performed on reclaimed tailing samples (amended with organic substances and planted) showed the high affinity of {REE}s for organic phases, even at very low concentration, suggesting a significant positive impact of phytoremediation onto {REE} fate in this post-mining context.},
  keywords = {{CHINE} ; {JIANGXI} {PROVINCE} ; {DINGNAN}},
  booktitle = {},
  journal = {{J}ournal of {H}azardous {M}aterials {A}dvances},
  volume = {17},
  numero = {},
  pages = {100609 [13 ]},
  ISSN = {2772-4166},
  year = {2025},
  DOI = {10.1016/j.hazadv.2025.100609},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094570},
}