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Sedimentological study of a lagoon through natural radioactivity and 137Cs determinations

  • Session 1: Radionuclides in the Environment, Radioecology
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

Profiles of artificial fallout (such as 137Cs) and natural radioactivity radionuclides in sediment cores are useful tools to study sedimentological properties of different aquatic environments as well as to evaluate average sedimentation rates. In the Portil lagoon, a small natural reservoir located in Huelva province (southwest of Spain), and through the analysis of 210Pb, 226Ra, 137Cs, 238U and 210Po vertical profiles in sediment cores, it is shown how the accumulative or transport character of the collection zones may be inferred. In the accumulation zone of the lagoon the influence of focusing effects has been analysed and an average sedimentation rate has been determined through 210Pb in one sediment core. This 210Pb-sedimentation rate is consistent with sediment dating based on the 137Cs data.

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Authors and Affiliations

  1. Dpto Física Aplicada, Universidad de Huelva, Ctra Palos s/n. 21819, Huelva, (Spain)

    E. G. San Miguel, J. P. Pérez-Moreno, J. L. Aguado & J. P. Bolívar

  2. Dpto Física Aplicada II, Universidad de Sevilla, Reina Mercedes, no 2, 41012, Sevilla, (Spain)

    R. García-Tenorio

Authors
  1. E. G. San Miguel
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  2. J. P. Pérez-Moreno
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  3. J. L. Aguado
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  4. J. P. Bolívar
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  5. R. García-Tenorio
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San Miguel, E.G., Pérez-Moreno, J.P., Aguado, J.L. et al. Sedimentological study of a lagoon through natural radioactivity and 137Cs determinations. Czech J Phys 53 (Suppl 1), A67–A73 (2003). https://doi.org/10.1007/s10582-003-0011-1

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  • DOI: https://doi.org/10.1007/s10582-003-0011-1

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