A Correction for In-Situ 14 C in Antarctic Ice with 14 CO

We use a dry extraction method to obtain trapped CO 2 of shallow ice cores from a blue ice area of East Antarctica. In - situ -produced 14 C extracted in 14 CO 2 and 14 CO concentrations show a mean ratio of 3.4 ± 0.4. Correction for in - situ 14 CO 2 resulted in ice ages within 7–13 ka. The accumul...

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Bibliographic Details
Published in:Radiocarbon
Main Authors: Van Rouen, Job, Van Der Borg, Klaas, De Jong, Arie, Oerlemans, Johannes
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1995
Subjects:
Antarctic
East Antarctica
Antarc*
Antarctica
Online Access:http://dx.doi.org/10.1017/s0033822200030605
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822200030605
Description
Summary:We use a dry extraction method to obtain trapped CO 2 of shallow ice cores from a blue ice area of East Antarctica. In - situ -produced 14 C extracted in 14 CO 2 and 14 CO concentrations show a mean ratio of 3.4 ± 0.4. Correction for in - situ 14 CO 2 resulted in ice ages within 7–13 ka. The accumulation and ablation rates determined from the in - situ production of 7–20 cm yr −1 and 10–13 cm yr −1 , respectively, agree with field measurements, and thus indicate close to total efficiency of extraction.

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