Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core
Fuente:
PANGAEA
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2009
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1867167669637087232 |
|---|---|
| author | Weikusat, Ilka Kipfstuhl, Sepp Faria, Sérgio H Azuma, Nobuhiko Miyamoto, Atsushi |
| author_facet | Weikusat, Ilka Kipfstuhl, Sepp Faria, Sérgio H Azuma, Nobuhiko Miyamoto, Atsushi |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_807197 |
| institution | PANGAEA |
| language | en |
| publishDate | 2009 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core Weikusat, Ilka Kipfstuhl, Sepp Faria, Sérgio H Azuma, Nobuhiko Miyamoto, Atsushi EDML; EDRILL; EPICA; EPICA-Campaigns; EPICA drill; EPICA Dronning Maud Land, DML28C01_00; European Project for Ice Coring in Antarctica; Kohnen Station; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; SPP1158 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. |
| title | Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core |
| topic | EDML; EDRILL; EPICA; EPICA-Campaigns; EPICA drill; EPICA Dronning Maud Land, DML28C01_00; European Project for Ice Coring in Antarctica; Kohnen Station; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; SPP1158 |
| url | https://doi.org/10.1594/PANGAEA.807197 |