Artículo
U/Th dating of impure carbonates: 230Th/232Th activity ratios in detrital material
Autor/es | Martínez Aguirre, Aránzazu
Alcaraz Pelegrina, José Manuel Rodríguez Vidal, Joaquín |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2019 |
Fecha de depósito | 2022-09-13 |
Publicado en |
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Resumen | In environmental age dating the 230Th/232Th activity ratio is widely used as an indicator of detrital contamination. A
clear relationship between this activity ratio and the carbonate sample’s age has previously been ... In environmental age dating the 230Th/232Th activity ratio is widely used as an indicator of detrital contamination. A clear relationship between this activity ratio and the carbonate sample’s age has previously been demonstrated, whereby a detrital correction must be applied when the 230Th/232Th activity ratio of the leach drops to 20. We demonstrate that in some cases carbonate samples with 230Th/232Th well above 20 must be corrected, otherwise an overestimation of the sample’s age is obtained. Evaluation of the relationship between 230Th/234U and 230Th/232Th in the carbonate’s aliquots will enable evalua-tion of the limit at which a carbonate can be considered pure or impure. |
Agencias financiadoras | European Union (UE) |
Identificador del proyecto | EU MEDOC Programme: 2002-02-4.1-U-048 |
Cita | Martínez Aguirre, A., Alcaraz Pelegrina, J.M. y Rodríguez Vidal, J. (2019). U/Th dating of impure carbonates: 230Th/232Th activity ratios in detrital material. Journal of Radioanalytical and Nuclear Chemistry, 321 (1), 71-81. |
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