Journal articles
Competition between grain growth and grain-size reduction in polar ice
J. Roessiger
1
P. D. Bons
1
A. Griera
2
M. W. Jessell
3
L. Evans
4
M. Montagnat
5
S. Kipfstuhl
6
S. Faria
7
I. Weikusat
6
L. Evans 4
Author
M. Montagnat 5
Author IdHAL : montagnat ORCID : https://orcid.org/0000-0001-9436-5163
S. Kipfstuhl 6
Author
S. Faria 7
Author
I. Weikusat 6
Author
1
Institut für Geowissenschaften [Tübingen] (Wilhelmstrasse 56, D-72074 Tübingen - Germany)
- Eberhard Karls Universität Tübingen ( Geschwister-Scholl-Platz 72074 Tübingen - Germany)
2
Departament de Geologia (ES-08193 Bellaterra - Spain)
- UAB - Universitat Autònoma de Barcelona (UAB Campus 08193 Bellaterra Barcelona - Spain)
3
LMTG - Laboratoire des Mécanismes et Transfert en Géologie (14 avenue Edouard Belin 31400 Toulouse - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- OMP - Observatoire Midi-Pyrénées (14 avenue Edouard Belin, 31400 TOULOUSE - France)
- Météo France (Direction interrégionale - Sud-Est, 2 boulevard Château Double, Aix-en-Provence - France)
- CNES - Centre National d'Études Spatiales [Toulouse] (18 avenue Edouard Belin 31401 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UAR 831 (France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- CNRS - Centre National de la Recherche Scientifique (France)
4
Australian Crustal Research Centre, School of Geosciences, Monash University (Australia)
- Monash University [Clayton] (Clayton, VIC 3800, Australia - Australia)
5
EDGe (France)
- LGGE - Laboratoire de glaciologie et géophysique de l'environnement (Domaine Universitaire 54 Rue Molière - BP 96 38402 ST MARTIN D HERES CEDEX - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5183 / FRE2192 / UPR5151 (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- OSUG - Observatoire des Sciences de l'Univers de Grenoble (414 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMS832 (France)
6
AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung ( 27570 Bremerhaven - Germany)
7
GZG - Geowissenschaftliches Zentrum Göttingen (Goldschmidtstr. 3, 37077 Göttingen, Germany - Germany)
- Georg-August-University [Göttingen] (Wilhelmsplatz 1, 37073 Göttingen - Germany)
Abstract : Static (or 'normal') grain growth, i.e. grain boundary migration driven solely by grain boundary energy, is considered to be an important process in polar ice. Many ice-core studies report a continual increase in average grain size with depth in the upper hundreds of metres of ice sheets, while at deeper levels grain size appears to reach a steady state as a consequence of a balance between grain growth and grain-size reduction by dynamic recrystallization. The growth factor k in the normal grain growth law is important for any process where grain growth plays a role, and it is normally assumed to be a temperature-dependent material property. Here we show, using numerical simulations with the program Elle, that the factor k also incorporates the effect of the microstructure on grain growth. For example, a change in grain-size distribution from normal to log-normal in a thin section is found to correspond to an increase in k by a factor of 3.5.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-00647437
Contributor : Pascale Talour <>
Submitted on : Friday, December 2, 2011 - 9:34:48 AM
Last modification on : Wednesday, July 28, 2021 - 3:58:45 AM
Contributor : Pascale Talour <>
Submitted on : Friday, December 2, 2011 - 9:34:48 AM
Last modification on : Wednesday, July 28, 2021 - 3:58:45 AM
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- HAL Id : insu-00647437, version 1
- DOI : 10.3189/002214311798043690
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Citation
J. Roessiger, P. D. Bons, A. Griera, M. W. Jessell, L. Evans, et al.. Competition between grain growth and grain-size reduction in polar ice. Journal of Glaciology, International Glaciological Society, 2011, 57 (205), pp.942-948. ⟨10.3189/002214311798043690⟩. ⟨insu-00647437⟩
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