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Radiocarbon Reservoir Age Variations in the South Peruvian Upwelling During the Holocene

Published online by Cambridge University Press:  18 July 2016

Michel Fontugne ,
Matthieu Carré ,
Ilhem Bentaleb ,
Michèle Julien  and
Danièle Lavallée
Michel Fontugne
Affiliation:
Laboratoire des Sciences du Climat et de l'Environnement, UMR 1572-CEA/CNRS, Domaine du CNRS, F-91198-Gif sur Yvette cedex, France
Matthieu Carré
Affiliation:
Institut des Sciences de l'Evolution de Montpellier, UMR 5554, Place Eugène Bataillon CC064 F-34095 Montpellier cedex 5, France
Ilhem Bentaleb
Affiliation:
Institut des Sciences de l'Evolution de Montpellier, UMR 5554, Place Eugène Bataillon CC064 F-34095 Montpellier cedex 5, France
Michèle Julien
Affiliation:
Archéologie des Amériques, CNRS, Maison de l'Archéologie et de l'Ethnogie, 21, Allée de l'Université, F-92023-Nanterre cedex, France
Danièle Lavallée
Affiliation:
Archéologie des Amériques, CNRS, Maison de l'Archéologie et de l'Ethnogie, 21, Allée de l'Université, F-92023-Nanterre cedex, France
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Abstract

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In Quebrada de los Burros in coastal southern Peru (Tacna department), human settlements containing shells and charcoal deposits have been excavated since 1995. The sea surface 14C reservoir ages, estimated by calculating the difference of 14C age between marine shells and terrestrial organic materials, exhibit high values during the lower and middle Holocene and decrease abruptly after 4000 cal BP. The increase of reservoir age at around 7000–8000 cal BP suggests an enhancement of Peruvian coastal upwelling intensity and changes in ocean circulation at intermediate depth.

Type
Part II
Information
Radiocarbon , Volume 46 , Issue 2: Proceedings of the 18th International Radiocarbon Conference (Part 2 of 2), Conference Editors: Nancy Beavan Athfield, Rodger J Sparks , 2004 , pp. 531 - 537
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

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