Title
Use of [Pb-Pb]3+ center of the amazonite for dating
Date Issued
01 January 2005
Access level
metadata only access
Resource Type
journal article
Author(s)
Universidad de Sao Paulo
Publisher(s)
Elsevier Ltd
Abstract
In the present work, dating of one type of amazonite sample using the [Pb-Pb]3+ dimeric center is carried out by electron spin resonance (ESR). The thermal stability of the center is investigated using isochronal annealing at several temperatures from 200 to 500°C for 15 min. Using isothermal annealing, the lifetime of the center was also estimated. The extrapolation of the straight line in the Arrhenius plot gives a lifetime of approximately 0.25 Ma at room temperature. The age obtained from sample was 90 ka. © 2004 Elsevier Ltd. All rights reserved.
Start page
251
End page
254
Volume
62
Issue
2 SPEC. ISS.
Language
English
OCDE Knowledge area
Sistemas de automatización, Sistemas de control
Políticas de salud, Servicios de salud
Subjects
Scopus EID
2-s2.0-10644231767
Source
Applied Radiation and Isotopes
ISSN of the container
09698043
Sponsor(s)
The authors wish to thank Ms E. Somessari and Mr C. Gaia, Instituto de pesquisas energeticas e Nucleares (IPEN), Brazil, for kindly carrying out irradiation of the samples. This work is supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil.
Sources of information:
Directorio de Producción Científica
Scopus