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Evolution of the Texture along the EPICA Dome C Ice Core

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Title: Evolution of the Texture along the EPICA Dome C Ice Core
Authors: Durand, Gaël Browse this author
Svensson, Anders Browse this author
Persson, Asbjørn Browse this author
Gagliardini, Olivier Browse this author
Gillet-Chaulet, Fabien Browse this author
Sjolte, Jesper Browse this author
Montagnat, Maurine Browse this author
Dahl-Jensen, Dorthe Browse this author
Keywords: EPICA Dome C ice core
recrystallization processes
Issue Date: Dec-2009
Publisher: Institute of Low Temperature Science, Hokkaido University
Citation: Physics of Ice Core Records II : Papers collected after the 2nd International Workshop on Physics of Ice Core Records, held in Sapporo, Japan, 2-6 February 2007. Edited by Takeo Hondoh
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 68
Issue: Supplement
Start Page: 91
End Page: 105
Abstract: New measurements of ice texture made along the EPICA Dome C ice core, together with a review of previous studies of fabric and microstructure, are presented. Mean grain size increases steadily with age, and so depth. However, sharp decreases are observed contemporary with each climatic termination. These sharp decreases are believed to be mainly driven by the change in dust content between glacial and interglacial periods. C-axes steadily clustered with depth toward a vertical single maximum. However, a sharp clustering of the fabric is observed during termination II (≈ 1750 m), suggesting the presence of shear in the upper part of the core. Moreover, below 2812 m, large variations of the fabric are observed from sample to sample. Migration recrystallization may affect the ice polycrystal for the lowest part of the core.
Description: I. Microphysical properties, deformation, texture and grain growth
Type: bulletin (article)
Appears in Collections:低温科学 = Low Temperature Science > vol. 68, Supplement Issue

Submitter: 低温科学研究所図書室

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