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Marine Reservoir Corrections for the Indian Ocean and Southeast Asia

Published online by Cambridge University Press:  18 July 2016

John Southon
Affiliation:
Earth System Science Department, 220 Rowland Hall, University of California, Irvine, California, 92697-3100, USA. Email: jsouthon@uci.edu.
Michaele Kashgarian
Affiliation:
Center for AMS, L-397, Lawrence Livermore National Laboratory, Livermore, California 94551-9900 USA
Michel Fontugne
Affiliation:
Laboratoire des Sciences, du Climat et de l'Environment, Domaine du CNRS, F-91198 Gif-sur-Yvette Cedex, France
Bernard Metivier
Affiliation:
Laboratoire de Biologie des Invertebres Marins et Malacologie, Musuem National d'Histoire Naturelle, 55 Rue de Buffon, 75005 Paris, France
Wyss W-S Yim
Affiliation:
Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
Corresponding
E-mail address:
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Abstract

We have measured radiocarbon in prebomb known-age shells and coral from the Indian Ocean and southeast Asia to determine marine reservoir age corrections. Western Indian Ocean results show a strong 14C depletion due to upwelling in the Arabian Sea, and indicate that this signal is advected over a wide area to the east and south. In contrast, the surface waters of the South China Sea contain relatively high levels of 14C, due in part to the input of well-equilibrated water masses from the western Pacific. The easternmost regions of the Indian Ocean are also strongly influenced by the flowthrough of Pacific waters north of Australia.

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Articles
Copyright
Copyright © 2002 by the Arizona Board of Regents on behalf of the University of Arizona 

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