²²⁶Ra, ²²⁸Ra and ⁴ºK as tracers of erosion and accumulation processes: A 3-year study on a beach with different sediment dynamics [Ra-226, Ra-228 and K-40 as tracers of erosion and accumulation processes: A 3-year study on a beach with different sediment dynamics]
Articolo
Data di Pubblicazione:
2021
Citazione:
²²⁶Ra, ²²⁸Ra and ⁴ºK as tracers of erosion and accumulation processes: A 3-year study on a beach with different sediment dynamics [Ra-226, Ra-228 and K-40 as tracers of erosion and accumulation processes: A 3-year study on a beach with different sediment dynamics] / A.C. Arriola-Velasquez, A. Tejera, J.G. Guerra, W. Geibert, I. Stimac, F. Camara, H. Alonso, J.G. Rubiano, P. Martel. - In: CATENA. - ISSN 0341-8162. - 207(2021 Dec), pp. 105705.1-105705.13. [10.1016/j.catena.2021.105705]
Abstract:
The aim of this study is to analyse the role of natural radionuclides 226Ra, 228Ra, 40K and unsupported 210Pb (210Pbex), as erosion and accumulation process tracers. For this purpose, a complex system, including both the characteristic dynamics of a closed beach and those associated with a beach open to wave action, was studied. A 3-year study of monthly variation of 226Ra, 228Ra, 40K and 210Pbex was carried out at Las Canteras beach, on the Island of Gran Canaria (Spain), covering several erosion and accumulation periods. A correlation analysis, ANOVA test and Tukey's Honestly Significant Difference (HSD) Test proved that the marine erosion and accumulation agents influenced the activity concentration values found for the different radionuclides. Moreover, the geochemical analysis of samples from maximum and minimum activity concentration values showed that the natural radionuclides studied could be suitable tracers for studying beach sediment dynamics in erosion and accumulation periods.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Beach; Coastal sediments; Erosion/accumulation; Radionuclides; Tracers
Elenco autori:
A.C. Arriola-Velasquez, A. Tejera, J.G. Guerra, W. Geibert, I. Stimac, F. Camara, H. Alonso, J.G. Rubiano, P. Martel
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