Deformation of grain boundaries in polar ice

Details Deformation of grain boundaries in polar ice Deformation of grain boundaries in polar ice

2003-09-03

arxiv.org/abs/cond-mat/0309081v3

Physics

Condensed Matter

Materials Science

Scientific paper

10.1209/epl/i2004-10139-0

The ice microstructure (grain boundaries) is a key feature used to study ice evolution and to investigate past climatic changes. We studied a deep ice core, in Dome Concordia, Antarctica, which records past mechanical deformations. We measured a "texture tensor" which characterizes the pattern geometry and reveals local heterogeneities of deformation along the core. These results question key assumptions of the current models used for dating.

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