Crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures

Qi, Chao; Prior, David J.; Craw, Lisa; Fan, Sheng; Llorens, Maria-Gema; Griera, Albert; Negrini, Marianne; Bons, Paul D.; Goldsby, David L.

doi:https://doi.org/10.5194/tc-13-351-2019

Articles | Volume 13, issue 1

https://doi.org/10.5194/tc-13-351-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-13-351-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 1

Research article

|

01 Feb 2019

Research article |

| 01 Feb 2019

Crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures

Chao Qi, David J. Prior, Lisa Craw, Sheng Fan, Maria-Gema Llorens, Albert Griera, Marianne Negrini, Paul D. Bons, and David L. Goldsby

Data sets

Data of "crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures" C. Qi https://doi.org/10.6084/m9.figshare.7604660.v2

Short summary

Ice deformed in nature develops crystallographic preferred orientations, CPOs, which induce an anisotropy in ice viscosity. Shear experiments of ice revealed a transition in CPO with changing temperature/strain, which is due to the change of dominant CPO-formation mechanism: strain-induced grain boundary migration dominates at higher temperatures and lower strains, while lattice rotation dominates at other conditions. Understanding these mechanisms aids the interpretation of CPOs in natural ice.