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Late-Holocene marine radiocarbon reservoir correction ({Delta}R) for the west coast of South Africa (2012)

Dewar, G., Reimer, P. J., Sealy, J., Woodborne, S.

Sage

In: Holocene

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Publication Date: 2012-11-23

Description: In order to calibrate radiocarbon ages based on samples with a marine carbon component it is important to know the marine carbon reservoir correction or R value. This study measured the R on both known-age pre-bomb marine shells and paired marine and terrestrial samples from two regions on the west coast of South Africa: the southwestern Cape and Namaqualand. Pooling the data by region produces R values that are similar enough to use a west coast weighted mean R of 146 ± 85 14 C years to correctly calibrate marine shell or mixed marine and terrestrial 14 C ages. There are however temporal differences in R throughout the Holocene, which we compare with proxy data for upwelling and sea surface temperatures.

Print ISSN: 0959-6836

Electronic ISSN: 1477-0911

Topics: Geography , Geosciences

Published by Sage

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