Artículos de revistas
TL, OSL and C-14 dating results of the sediments and bricks from mummified nuns' grave
Fecha
2012Registro en:
An. Acad. Bras. Ciênc.,v.84,n.2,p.237-244,2012
0001-3765
10.1590/S0001-37652012005000031
Autor
Tudela, Diego R.G.
Tatumi, Sonia H.
Yee, Márcio
Brito, Silvio L.M.
Morais, Jose Luiz de
Morais, Daisy de
Piedade, Silvia C.
Munita, Casimiro S.P.
Hazenfratz, Roberto
Institución
Resumen
This paper presents the results of TL and OSL dating of soil and fragments of bricks from a grave, which was occupied by two mummified nuns, found at "Luz" Monastery, located in the state of São Paulo, Brazil. The TL and OSL ages were compared to C-14 dating ones obtained from bone collagens of the mummies. The majority of the ages is related to the eighteenth century. The gamma-ray spectroscopy was used to evaluate natural radioisotope concentrations in the samples, and by using these concentrations the annual dose rates, from 3.0 to 5.3 Gy/kyr, were obtained. Neutron activation analysis was performed and the radioisotope contents results are in agreement with those obtained by gamma-ray spectroscopy. The contents of U, Th and Ce elements were higher than those found in usual sediments.