| 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 |
| texture |
| anisotropy |
| 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) |
| URI: | http://hdl.handle.net/2115/45436 |
| Appears in Collections: | 低温科学 = Low Temperature Science > vol. 68, Supplement Issue
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