Characterization of the Antarctic soil of King George Island/25 May by gamma spectrometry
DOI:
https://doi.org/10.35954/SM2018.37.1.4Keywords:
Diagnostic Techniques, Radioisotope; Isotope Labeling; Radioisotopes, Gamma Spectrometry; Isotopic Labeling; Radioisotope Diagnostic Techniques; Radioisotope Diagnostics TechniquesAbstract
Ice-free areas are the most biologically active places on the Antarctic continent. Only a few plants and animals have managed to colonize and survive in ice-free regions and are mainly limited to the few areas of exposed rocks, mostly around the coast, and especially associated with the Fildes Peninsula, King George Island / May 25 (near the Artigas Antarctic Scientific Base - Uruguay). The 137Cs is an artificial radioactive isotope byproduct of nuclear tests of the years 1950-1970, which has a global distribution and can be used as a tracer of the soil. In order to measure it, high-resolution gamma spectrometry technique (with hyperpure germanium crystals) is used, which can, together with the 137C measurements, determine the amounts of uranium, thorium and potassium of the tested samples, allowing a general radioisotope characterization of the superficial soil. Ranges of values obtained for 238U, 232Th and 40K were similar to previous studies King George Island / May 25th. But the relatively important values (between 98.47 to 670.64 Bq / m2) of 137Cs, support future work in the use of this element for studies of the Antarctic soil.
Downloads
References
(1) Bockheim JG, editor. The Soils of Antarctica (World Soils Book Series). 2015th. Springer, 2015. 322 p.
(2) Nie X, Zhang J, Gao H. Soil Enzyme Activities on Eroded Slopes in the Sichuan Basin, China. Pedosphere 2015; 25(4):489-500.
(3) Sanders CJ, Santos IR, Patchineelam SR, Schaefer C, Silva-Filho EV. Recent 137Cs deposi-tion in sediments of Admiralty Bay, Antarctica. J Environ Radioact 2010; 101(5):421-4.
(4) Ferreira PA, Ribeiro AP, do Nascimento MG, Martins C, de Mahiques MM, Montone RC, et al. 137Cs in marine sediments of Admiralty Bay, King George Island, Antarctica. Sci Total Environ 2013; 443:505-10.
(5) Kuzmann E, Schuch L, Garg V, de Souza Junior PA, Guimarães EM, de Oliveira AC, et al. Maritime Antarctica soils studied by Mössbauer spectrosco-py and other methods. Braz. J. Phys. [online]. 1998, vol.28, n.4, pp.00-00. Disponible en: http://www.scielo.br/pdf/bjp/v28n4/garg.pdf [Consulta 16/01/2018].
Published
How to Cite
Issue
Section
License
Until 2024 we use the Creative Commons Attribution/NonCommercial Attribution 4.0 International License https://creativecommons.org/licenses/by-nc/4.0/deed.es. Which states that: you are free to share, copy and redistribute the material in any medium or format, as well as to adapt, remix, transform and build upon the material. Under the following terms:
Attribution: you must give proper credit , provide a link to the license, and indicate if changes have been made . You may do so in any reasonable manner, but not in such a way as to suggest that you or your use is endorsed by the licensor.
NonCommercial: you may not use the material for commercial purposes.
As of 2025 authors retain their copyright and assign to the journal the right of first publication of their work, which shall simultaneously be subject to the license https://creativecommons.org/licenses/by-nc-sa/4.0/deed.es that permits sharing, copying and redistribution of the material in any medium or format provided that initial publication in this journal is indicated. Adapt, remix, transform and build upon the material. If you remix, transform, or build from the material, you must distribute your contribution under the same license as the original and may not make use of the material for commercial purposes.
Under the following terms:
1. Attribution: you must give proper credit, provide a link to the license, and indicate whether changes have been made. You may do so in any reasonable manner, but not in such a way as to suggest that you or your use is endorsed by the licensor.
2. NonCommercial: you may not use the material for commercial purposes.
3. ShareAlike: if you remix, transform or build upon the material, you must distribute your contribution under the same license as the original.
PlumX Metrics
