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Type: Artigo de evento
Title: U And Th Thin Film Neutron Dosimetry For Fission-track Dating: Application To The Age Standard Moldavite
Author: Iunes P.J.
Bigazzi G.
Hadler Neto J.C.
Laurenzi M.A.
Balestrieri M.L.
Norelli P.
Osorio Araya A.M.
Guedes S.
Tello S. C.A.
Paulo S.R.
Moreira P.A.F.P.
Palissari R.
Curvo E.A.C.
Abstract: 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.
Rights: fechado
Identifier DOI: 10.1016/j.radmeas.2004.08.007
Date Issue: 2005
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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