Actas de congresos
U and Th thin film neutron dosimetry for fission-track dating: Application to the age standard Moldavite
Fecha
2005-12-01Registro en:
Radiation Measurements, v. 39, n. 6, p. 665-668, 2005.
1350-4487
10.1016/j.radmeas.2004.08.007
2-s2.0-20844452377
Autor
Universidade Estadual de Campinas (UNICAMP)
CNR
Universidade Do Estado De São Paulo
UFMT
Institución
Resumen
Neutron dosimetry based on U and Th thin films was used for fission-track dating of the age standard Moldavite, the central European tektite, from the Middle Miocene deposit of Jankov (southern Bohemia, Czech Republic). Our fission-track age (13.98±0.58Ma) agrees with a recent 40Ar/39Ar age, 14.34±0.04Ma, based on several determinations on Moldavites from different sediments, including the Jankov deposit. This result indicates that the U and Th thin film neutron dosimetry represents a reliable alternative for an absolute approach in fission-track dating. © 2005 Elsevier Ltd. All rights reserved.