Articles | Volume 11, issue 3
https://doi.org/10.5194/tc-11-1075-2017
https://doi.org/10.5194/tc-11-1075-2017
Research article
 | 
05 May 2017
Research article |  | 05 May 2017

Location and distribution of micro-inclusions in the EDML and NEEM ice cores using optical microscopy and in situ Raman spectroscopy

Jan Eichler, Ina Kleitz, Maddalena Bayer-Giraldi, Daniela Jansen, Sepp Kipfstuhl, Wataru Shigeyama, Christian Weikusat, and Ilka Weikusat

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Cited articles

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Alley, R. B. and Woods, G. A.: Impurity influence on normal grain growth in the GISP2 ice core, Greenland, J. Glaciol., 42, 255–260, 1996.
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Ashby, M.: Boundary defects and the mechanism of particle movement through crystals, Scripta Metallurgica, 3, 843–848, https://doi.org/10.1016/0036-9748(69)90192-6, 1969.
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Short summary
This study contributes to investigations of the effect of impurities on ice microstructure and flow properties. For the first time we mapped over 5000 micro-inclusions in four samples from the EDML and NEEM polar ice cores. The particle distributions show no correlation with grain boundaries and thus we conclude that particle pinning plays only a secondary role for the microstructure evolution. Alternative mechanisms are discussed.
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