Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice
Deformation microstructures in an Antarctic ice core (EDML) and in experimentally deformed artificial ice, which together comprise a great variety of conditions and parameters, are reconsidered and compared. Data presented here cover grain substructure and shape. Despite the different flow condition...
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Institute of Low Temperature Science, Hokkaido University
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/45438 2023-05-15T13:42:37+02:00 Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice Weikusat, Ilka Kipfstuhl, Sepp Azuma, Nobuhiko Faria, Sérgio H. Miyamoto, Atsushi http://hdl.handle.net/2115/45438 eng eng Institute of Low Temperature Science, Hokkaido University 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 http://hdl.handle.net/2115/45438 low angle grain boundary creep test dynamic recrystallization recovery sublimation grooves 400 bulletin (article) fthokunivhus 2022-11-18T01:02:09Z Deformation microstructures in an Antarctic ice core (EDML) and in experimentally deformed artificial ice, which together comprise a great variety of conditions and parameters, are reconsidered and compared. Data presented here cover grain substructure and shape. Despite the different flow conditions surprising similarities in these observations indicate intracrystalline slip as the deformation carrier in natural as well as in experimentally deformed ice. Similar subgrain-boundary shapes and arrangements in both cases indicate characteristic types, which suggest that non-basal dislocations may play a significant role in the deformation of ice. Subgrain-boundary density and grain-boundary shapes show that a difference between processes in creep tests and in the Antarctic ice sheet is the efficiency of recovery and dynamic recrystallization. I. Microphysical properties, deformation, texture and grain growth Article in Journal/Newspaper Antarc* Antarctic ice core Ice Sheet Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic The Antarctic |
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Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
low angle grain boundary creep test dynamic recrystallization recovery sublimation grooves 400 |
spellingShingle |
low angle grain boundary creep test dynamic recrystallization recovery sublimation grooves 400 Weikusat, Ilka Kipfstuhl, Sepp Azuma, Nobuhiko Faria, Sérgio H. Miyamoto, Atsushi Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
topic_facet |
low angle grain boundary creep test dynamic recrystallization recovery sublimation grooves 400 |
description |
Deformation microstructures in an Antarctic ice core (EDML) and in experimentally deformed artificial ice, which together comprise a great variety of conditions and parameters, are reconsidered and compared. Data presented here cover grain substructure and shape. Despite the different flow conditions surprising similarities in these observations indicate intracrystalline slip as the deformation carrier in natural as well as in experimentally deformed ice. Similar subgrain-boundary shapes and arrangements in both cases indicate characteristic types, which suggest that non-basal dislocations may play a significant role in the deformation of ice. Subgrain-boundary density and grain-boundary shapes show that a difference between processes in creep tests and in the Antarctic ice sheet is the efficiency of recovery and dynamic recrystallization. I. Microphysical properties, deformation, texture and grain growth |
format |
Article in Journal/Newspaper |
author |
Weikusat, Ilka Kipfstuhl, Sepp Azuma, Nobuhiko Faria, Sérgio H. Miyamoto, Atsushi |
author_facet |
Weikusat, Ilka Kipfstuhl, Sepp Azuma, Nobuhiko Faria, Sérgio H. Miyamoto, Atsushi |
author_sort |
Weikusat, Ilka |
title |
Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
title_short |
Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
title_full |
Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
title_fullStr |
Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
title_full_unstemmed |
Deformation Microstructures in an Antarctic Ice Core (EDML) and in Experimentally Deformed Artificial Ice |
title_sort |
deformation microstructures in an antarctic ice core (edml) and in experimentally deformed artificial ice |
publisher |
Institute of Low Temperature Science, Hokkaido University |
url |
http://hdl.handle.net/2115/45438 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic ice core Ice Sheet |
genre_facet |
Antarc* Antarctic ice core Ice Sheet |
op_relation |
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 http://hdl.handle.net/2115/45438 |
_version_ |
1766170114632187904 |