Marine radiocarbon reservoir effect of coastal waters off Cape Verde archipelago

Quantification of the marine radiocarbon reservoir effect (Delta R) is essential in order to calibrate conventional C-14 dates from marine shell samples with reliability. Delta R also provides information concerning the intensity of coastal upwelling in marine regions influenced by this phenomenon....

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Bibliographic Details
Published in:Radiocarbon
Main Authors: Monge Soares, Antonio M., Matos Martins, Jose M., Cardoso, Joao Luis
Format: Article in Journal/Newspaper
Language:English
Published: Univ Arizona Dept Geosciences 2011
Subjects:
Sw spain observations
North-Atlantic
Frontal zone
Temporal fluctuations
Geomorphic model
Age calibration
Chenier plain
California
Holocene
Variability
North Atlantic
Online Access:http://hdl.handle.net/10400.1/12076
https://doi.org/10.1017/S0033822200056551
Description
Summary:Quantification of the marine radiocarbon reservoir effect (Delta R) is essential in order to calibrate conventional C-14 dates from marine shell samples with reliability. Delta R also provides information concerning the intensity of coastal upwelling in marine regions influenced by this phenomenon. C-14 ages of closely associated marine samples (mollusk shells) and terrestrial samples (goat bones) from Sao Vicente Island, Cape Verde Archipelago, permitted the first calculation of the marine C-14 reservoir effect in this region. A Delta R weighted mean value of 70 +/- 70 C-14 yr was obtained. This value is in accordance with the previously published oceanographic conditions of the region indicating the existence of a seasonal active upwelling regime.

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