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...
Published in: | Radiocarbon |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1995
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Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0033822200030605 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822200030605 |
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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