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Ice microstructure in Antarctic deep drilling samples (EDML): Cryogenic EBSD, X-ray Laue diffraction and optical microscopy

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Weikusat, I. , Miyamoto, A. , Pennock, G. M. , Drury, M. R. , Faria, S. H. , Kipfstuhl, S. and Azuma, N. (2011): Ice microstructure in Antarctic deep drilling samples (EDML): Cryogenic EBSD, X-ray Laue diffraction and optical microscopy , Ice deformation; from the model material to ice in natural environments, Grenoble, France, 7 November 2011 - 9 November 2011 .
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Abstract:

We present data obtained with classical optical microscopy (LM microstructure mapping^1) and high-resolution full-crystal orientation measurements (X-ray Laue diffraction^2 and Electron backscattered diffraction^3) revealing information on mechanical properties and deformation behaviour of polar ice. These data provide insight into activity of recrystallization processes caused by deformation including the activity of different dislocation types. ^1Weikusat, I.; Kipfstuhl, S.; Faria, S. H.; Azuma, N. \& Miyamoto, A. Subgrain boundaries and related microstructural features in EPICA-Dronning Maud Land (EDML) deep ice core. J. Glaciol., 2009, 55, 461-472, doi: 10.3189/002214309788816614 ^2Weikusat, I.; Miyamoto, A.; Faria, S. H.; Kipfstuhl, S.; Azuma, N. \& Hondoh, T. Subgrain boundaries in Antarctic ice quantified by X-ray Laue diffraction. J. Glaciol., 2011, 57, 85-94 ^3Weikusat, I.; de Winter, D. A. M.; Pennock, G. M.; Hayles, M.; Schneijdenberg, C. T. W. M. & Drury, M. R. Cryogenic EBSD on ice: preserving a stable surface in a low pressure SEM. J. Microsc., 2010, doi: 10.1111/j.1365-2818.2010.03471.x

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