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ESR dating of a subfossil shell from Couve Island, Ubatuba, Brazil

Kinoshita, Angela and Brunetti, Antonio and Avelar, Wagner E. P. and Mantelatto, Fernando Luis Medina and Simões, Marcello Guimarães and Fransozo, Adilson and Baffa Filho, Oswaldo (2002) ESR dating of a subfossil shell from Couve Island, Ubatuba, Brazil. Applied Radiation and Isotopes, Vol. 57 (4), p. 497-500. ISSN 0969-8043. Article.

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DOI: 10.1016/S0969-8043(02)00096-9

Abstract

The occurrence of subfossil material in bottom sediments of Couve Island, Ubatuba region, São Paulo State, is confirmed. The analyzed material consists of a bivalve shell that was dated by the electron spin resonance technique. By the additive irradiation method an archaeological absorbed dose of (25±5) Gy was obtained and calibration with other dating works in the same area allows the inference of an age of (25±5)×102 years. The importance of this finding and its paleoecological implications could contribute to elucidating the nature of short-term environmental changes in the Brazilian coastline during the Holocene, as well as becoming an important tool to the understanding of the distribution and biological aspects of the bivalve fauna.

Item Type:Article
ID Code:4868
Status:Published
Refereed:Yes
Uncontrolled Keywords:Resonance
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:Pergamon
ISSN:0969-8043
Copyright Holders:© 2002 Elsevier Science
Deposited On:09 Dec 2010 10:37

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