Raman spectroscopy of gaseous inclusions in EDML ice core: First results - microbubbles


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Christian.Weikusat [ at ] awi.de

Abstract

Measurements of N2/O2 ratios inside individual air bubbles in various depths of the EDML ice core are presented here. The small bubbles (diameter below ~200 μm) in deeper ice are significantly enriched in O2 compared to the larger bubbles. The N2/O2 ratios show a systematic dependence on bubble size which is not the case for bubbles in shallower ice. This is interpreted as an effect of pressure relaxation during storage of the cores.



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Scopus/ISI peer-reviewed
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Published
Eprint ID
25791
DOI 10.3189/2012JoG11J222

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Weikusat, C. , Freitag, J. and Kipfstuhl, S. (2012): Raman spectroscopy of gaseous inclusions in EDML ice core: First results - microbubbles , Journal of Glaciology, 58 (210), pp. 761-766 . doi: 10.3189/2012JoG11J222


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