Diffusion of isotopes in the annual layers of ice sheets

Abstract The annual layering in the Greenland and Antarctic ice sheets revealed by the b 0 record becomes less distinct with depth because of self-diffusion. However, the calculated diffusion rates are loo slow to explain die observations. It is suggested that the presence of veins of liquid water i...

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Bibliographic Details
Published in:Journal of Glaciology
Main Author: Nye, J. F.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1998
Subjects:
Online Access:http://dx.doi.org/10.1017/s0022143000001982
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000001982
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Summary:Abstract The annual layering in the Greenland and Antarctic ice sheets revealed by the b 0 record becomes less distinct with depth because of self-diffusion. However, the calculated diffusion rates are loo slow to explain die observations. It is suggested that the presence of veins of liquid water increases the effective diffusion constant by a factor of about 20.