Comparison of population and external detector method dating in epidote

Comparison of population and external detector method dating in epidote

Author Curvo, E. A. C. Google Scholar
Iunes, P. J. Google Scholar
Guedes, S. Autor UNIFESP Google Scholar
Palissari, R. Google Scholar
Hadler, J. C. Google Scholar
Institution Universidade Estadual de Campinas (UNICAMP)
Universidade Federal de São Paulo (UNIFESP)
Abstract Epidote fission-track dating (FTD) was performed through both Population and external detector method (EDM) in five samples from the Mantiqueira Mountain range, southwestern Brazil. the ages obtained via population conducted to a weighted mean age of (114 +/- 19) Ma. in order to perform EDM dating, it was necessary to measure the efficiency factor (g) between muscovite mica and epidote. Three measurements were performed and the weighted mean g value obtained was (0.57 +/- 0.03). the weighted EDM age was (98 +/- 7) Ma. the population error magnitude occurs due to the existence of few useful epidote grains. EDM provides dating with fewer grains, however there are difficulties concerning etching anisotropy that should be regarded. Both dating methods agreed. (c) 2007 Elsevier B.V. All rights reserved.
Language English
Date 2007-09-01
Published in Radiation Measurements. Oxford: Pergamon-Elsevier B.V., v. 42, n. 8, p. 1307-1314, 2007.
ISSN 1350-4487 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 1307-1314
Access rights Closed access
Type Article
Web of Science ID WOS:000251921900007

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