Journal of Radioanalytical and Nuclear Chemistry

, Volume 283, Issue 3, pp 593–596

Intertidal mangrove mudflat 240+239Pu signatures, confirming a 210Pb geochronology on the southeastern coast of Brazil

Authors

    • Departamento de GeoquímicaUniversidade Federal de Fluminense (UFF)
  • J. M. Smoak
    • Environmental ScienceUniversity of South Florida (USF)
  • L. M. Sanders
    • Environmental ScienceUniversity of South Florida (USF)
  • M. N. Waters
    • Natural SciencesShorter College
  • S. R. Patchineelam
    • Departamento de GeoquímicaUniversidade Federal de Fluminense (UFF)
  • M. E. Ketterer
    • Department of Chemistry and BiochemistryNorthern Arizona University
Article

DOI: 10.1007/s10967-009-0418-7

Cite this article as:
Sanders, C.J., Smoak, J.M., Sanders, L.M. et al. J Radioanal Nucl Chem (2010) 283: 593. doi:10.1007/s10967-009-0418-7

Abstract

A sediment core was taken to determine if sediment accumulation rates could be conducted using 240+239Pu signatures in the coastal mangrove mudflats of southeastern Brazil. The results from this study show that 240+239Pu fallout activities are sufficient and well preserved in the coastal sediments of this region. Sediment accumulation rates determined from the 240+239Pu signatures were 4.4 mm/year and 4.1 from 210Pb (CIC) method. A sediment mixing coefficient rate was calculated using chlorophyll-a profile (9.5 cm2).

Keywords

240+239Pu210Pb226RaBrazil

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009