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Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core

Subgrain boundaries revealed as shallow sublimation grooves on ice sample surfaces are a direct and easily observable feature of intracrystalline deformation and recrystallization. Statistical data obtained from the EPICA Dronning Maud Land (EDML) deep ice core drilled in East Antarctica cannot detect a depth region of increased subgrain-boundary formation. Grain-boundary morphologies show a strong influence of internal strain energy on the microstructure at all depths. The data do not support the classical view of a change of dominating recrystallization regimes with depth. Three major types of subgrain boundaries, reflecting high mechanical anisotropy, are specified in combination with crystal-orientation analysis.

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Cite this as

Weikusat, Ilka, Kipfstuhl, Sepp, Faria, Sérgio H, Azuma, Nobuhiko, Miyamoto, Atsushi (2009). Dataset: Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core. https://doi.org/10.1594/PANGAEA.807197

DOI retrieved: 2009

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.807197
Author Weikusat, Ilka
Given Name Ilka
Family Name Weikusat
More Authors
Kipfstuhl, Sepp
Faria, Sérgio H
Azuma, Nobuhiko
Miyamoto, Atsushi
Source Creation 2009
Publication Year 2009
Resource Type application/zip - filename: Weikusat_2009
Subject Areas
Name: LandSurface

Name: Lithosphere

Related Identifiers
Title: Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core
Identifier: https://doi.org/10.3189/002214309788816614
Type: DOI
Relation: IsSupplementTo
Year: 2009
Source: Journal of Glaciology
Authors: Weikusat Ilka , Kipfstuhl Sepp , Faria Sérgio H , Azuma Nobuhiko , Miyamoto Atsushi .