Geochemistry of marine sediments from inner Ría de Vigo (NW Spain)

Abstract

Two sediment cores were recovered in San Simón Bay (NW Spain) in order to establish sediment accumulation rates by 210Pb and 137Cs dating and to reconstruct metal pollution history. Sediment composition was determined by X-ray Fluorescence. A main lithogenic origin was shown up. Grain size conditions radionuclide activities and element concentrations. Fine grained sediments concentrate pollutants and showed higher activities. Radionuclide profiles are affected by diagenetic processes and sedimentary disturbances, but a temporal framework could be obtained for the intertidal area, where the anthropogenic inputs of Cu, Pb and Zn started several decades ago.

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References

  1. 1.

    Cundy, A.B., Croudace, I.W.: Sedimentary and chemical associations of radionuclides and trace metals in estuarine sediments: an example from Poole Harbour, Southern England. Mar. Chem. 51, 115–132 (1995)

    Article  CAS  Google Scholar 

  2. 2.

    Álvarez-Iglesias, P., Rubio, B., Vilas, F.: Pollution in intertidal sediments of San Simón Bay (Inner Ría de Vigo, NW of Spain): total heavy metal concentration and their speciation. Mar. Pollut. Bull. 46, 491–503 (2003)

    Article  Google Scholar 

  3. 3.

    Álvarez-Iglesias, P., Rubio, B., Pérez-Arlucea, M.: Reliability of subtidal sediments as “geochemical recorders” of pollution input: San Simón Bay (Ría de Vigo, NW Spain). Estuar. Coast. Shelf Sci. 70, 507–521 (2006)

    Article  Google Scholar 

  4. 4.

    Croudace, I.W., Williams-Thorpe, O.: A low dilution, wavelength-dispersive, X-ray fluorescence procedure for the analysis of archaeological rock artefacts. Archaeometry 30, 227–236 (1988)

    Article  CAS  Google Scholar 

  5. 5.

    Croudace, I.W.: A reliable and accurate procedure for prepararing low-activity efficiency calibration standards for germanium gamma-ray spectrometers. J. Radioanal. Nucl. Chem. (Lett.) 153, 151–162 (1991)

    Article  CAS  Google Scholar 

  6. 6.

    Álvarez-Iglesias, P., Quintana, B., Rubio, B., Pérez-Arlucea, M.: Sedimentation rates and trace metal input history in intertidal sediments derived from 210Pb and 137Cs chronology. J. Environ. Radioact. 98, 229–250 (2007)

    Article  Google Scholar 

  7. 7.

    Álvarez-Iglesias, P., Rubio, B.: Redox status and heavy metal risk in intertidal sediments in N.W. Spain as inferred from the degrees of pyritization of iron and trace elements. Mar. Pollut. Bull. 58, 542–551 (2009)

    Google Scholar 

  8. 8.

    Howarth, R.J., Graham, E., Croudace, I.W.: Sources and timing of anthropogenic pollution in the Ensenada de San Simón (inner Ría de Vigo), Galicia, NW Spain: an application of mixture-modelling and nonlinear optimization to recent sedimentation. Sci. Total Environ. 340(1–3), 149–176 (2005)

    CAS  Google Scholar 

  9. 9.

    Desprat, S., Sánchez-Goñi, M.F., Loutre, M.-F.: Revealing climatic variability of the last three millennia in northwestern Iberia using pollen influx data. Earth Planet Sci. Lett. 213, 63–78 (2003)

    Article  CAS  Google Scholar 

  10. 10.

    Iglesias, J., García-Gil, S.: High resolution mapping of shallow gas accumulations and gas seeps in San Simón Bay (Ría de Vigo, NW Spain). Geo-Mar. Lett. 27, 103–114 (2007)

    Article  CAS  Google Scholar 

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Acknowledgments

The European programme SOCFAC in the framework of the Human Potential Program—Access to Research Infrastructures of the European Commission (contract No. HPRI-CT-1999-00108) has funded the analytical work carried out at the NOCS, and we are grateful to Dr. I.W. Croudace for providing access to facilities and for data. P.A.-I. also thanks the support from the Spanish MEC through a PhD fellowship (F.P.U.). This paper is a contribution to the project CTM2007-61227/MAR of the Spanish MCYT, and to the project PGIGIT06TAM31201PR of the Xunta de Galicia.

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Correspondence to P. Álvarez-Iglesias.

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Álvarez-Iglesias, P., Rubio, B. Geochemistry of marine sediments from inner Ría de Vigo (NW Spain). J Radioanal Nucl Chem 281, 247–251 (2009). https://doi.org/10.1007/s10967-009-0107-6

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Keywords

  • 210Pb
  • 137Cs
  • Marine sediments
  • Geochemistry
  • Metal pollution
  • Shallow coastal environment