Articles | Volume 15, issue 9
The Cryosphere, 15, 4381–4398, 2021
https://doi.org/10.5194/tc-15-4381-2021
The Cryosphere, 15, 4381–4398, 2021
https://doi.org/10.5194/tc-15-4381-2021

Research article 10 Sep 2021

Research article | 10 Sep 2021

Orientation selective grain sublimation–deposition in snow under temperature gradient metamorphism observed with diffraction contrast tomography

Rémi Granger et al.

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Latest update: 26 Jan 2022
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Short summary
In this study on temperature gradient metamorphism in snow, we investigate the hypothesis that there exists a favourable crystal orientation relative to the temperature gradient. We measured crystallographic orientations of the grains and their microstructural evolution during metamorphism using in situ time-lapse diffraction contrast tomography. Faceted crystals appear during the evolution, and we observe higher sublimation–deposition rates for grains with their c axis in the horizontal plane.