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Raman spectroscopic study on the nitrogen/oxygen ratio in natural ice clathrates in the GRIP ice core

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Pauer, F. , Kipfstuhl, J. and Kuhs, W. F. (1995): Raman spectroscopic study on the nitrogen/oxygen ratio in natural ice clathrates in the GRIP ice core , Geophysical Research Letters, 22 (8), pp. 969-971 .
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Abstract:

We have carried out Raman spectroscopic experiments on air clathrates in the GReenland Ice Core Project (GRIP) deep ice core. We present new N-2/O-2 measurements that markedly differ from previous measurements of the Dye-3 ice core: the N-2/O-2 ratio we observe is much closer to atmospheric. This has new implications for the interpretation of gas distributions in ice sheets and the reconstruction of past atmospheric conditions.

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