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ESR dating of an ancient goat tooth from Nuoro, Sardinia, Italy

Baffa Filho, Oswaldo and Kinoshita, Angela and Figueiredo, Adoniram M. G. and Brunetti, Antonio and Ginesu, Sergio (2006) ESR dating of an ancient goat tooth from Nuoro, Sardinia, Italy. Radiation Protection Dosimetry, Vol. 119 (1-4), p. 446-449. eISSN 1742-3406. Article.

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DOI: 10.1093/rpd/nci502

Abstract

The dating of fossil teeth of an ancient goat (Nesogoral melonii) using the electron spin resonance (ESR) technique is reported. This animal was found in the fossiliferous site at Orosei (Nuoro, Sardinia, Italy) and was endemic in the region. Molar teeth were cleaned and enamel was completely removed from dentine. Enamel was irradiated with a 60Co gamma source and measured with an ESR spectrometer (X-band) to obtain the signal vs. dose curve and fitted with an exponential function. The archeological dose obtained by the fitting was 211 ± 34 Gy. Uranium and thorium concentrations were determined by neutron activation analysis. With the software ROSY the age estimates were 195 ± 30 ky for early uptake, 247 ± 40 ky for linear uptake and 243 ± 40 ky for a combination of uptake processes.

Item Type:Article
ID Code:4668
Status:Published
Refereed:Yes
Uncontrolled Keywords:Electron spin resonance, enamel signals, Brazil shell
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Area 04 - Scienze della terra > GEO/04 Geografia fisica e geomorfologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze botaniche, ecologiche e geologiche
001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:Oxford University Press
eISSN:1742-3406
Copyright Holders:© The Author 2006
Deposited On:12 Oct 2010 17:08

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