@article{fdi:010064877,
  title = {{R}apid neodymium release to marine waters from lithogenic sediments in the {A}mazon estuary},
  author = {{R}ousseau, {T}. {C}. {C}. and {S}onke, {J}. {E}. and {C}hmeleff, {J}. and van {B}eek, {P}. and {S}ouhaut, {M}. and {B}oaventura, {G}. and {S}eyler, {P}atrick and {J}eandel, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}are earth element ({REE}) concentrations and neodymium isotopic composition (epsilon {N}d) are tracers for ocean circulation and biogeochemistry. {A}lthough models suggest that {REE} release from lithogenic sediment in river discharge may dominate all other {REE} inputs to the oceans, the occurrence, mechanisms and magnitude of such a source are still debated. {H}ere we present the first simultaneous observations of dissolved (< 0.45 mu m), colloidal and particulate {REE} and e{N}d in the {A}mazon estuary. {A} sharp drop in dissolved {REE} in the low-salinity zone is driven by coagulation of colloidal matter. {A}t mid-salinities, total dissolved {REE} levels slightly increase, while epsilon {N}d values are shifted from the dissolved {N}d river endmember (- 8.9) to values typical of river suspended matter (- 10.6). {C}ombining a {N}d isotope mass balance with apparent radium isotope ages of estuarine waters suggests a rapid (3 weeks) and globally significant {N}d release by dissolution of lithogenic suspended sediments.},
  keywords = {{AMAZONE} {ESTUAIRE} ; {ATLANTIQUE}},
  booktitle = {},
  journal = {{N}ature {C}ommunications},
  volume = {6},
  numero = {},
  pages = {art. 7592 [8 p.]},
  ISSN = {2041-1723},
  year = {2015},
  DOI = {10.1038/ncomms8592},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064877},
}