2012 Fiscal Year Final Research Report
Metamorphic processes of ice sheet based on crystal texture analysis and deformation test of polar deep ice core
| Project/Area Number |
22540426
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 氷 / 氷床コア / 結晶組織 / a軸方位 / 力学試験 / X線ラウエ法 |
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| Research Abstract |
In order to understand metamorphic processes of ice sheet, ice crystal texture analysis and deformation test of artificial ice samples and ice core samples from ice sheet were carried out. In particular, this research was focused on the a-axis orientation distribution of ice crystals. Ice single crystal growth apparatus as a standard sample and thin section sample deformation test apparatus which can be observed crystal orientation and structure during deformation were also designed and developed. As a result, the anisotropic distribution of a-axes orientation was previously found in deep ice core samples may be formed under limited condition was suggested.
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[Presentation] X-ray diffraction study of the NEEM ice core2012
Author(s)
Hori Akira, Atsushi Miyamoto, Nobuhiko Azuma,Kumiko Goto-Azuma and Takeo Hondoh
Organizer
The first Open Science Conference of the International Partnerships in Ice Core Sciences (IPICS)
Place of Presentation
Belembra Club, Giens, France
Year and Date
2012-10-02
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[Presentation] Dislocation activity in Antarctic ice2010
Author(s)
Ilka Weikusat, Atsushi Miyamoto,Sergio H. Faria, Gill M. Pennock, Nobuhiko Azuma, Takeo Hondoh, Martyn R. Drury and Sepp Kipfstuh
Organizer
12th International Conference on thePhysics and Chemistry of Ice
Place of Presentation
北海道大学,札幌市
Year and Date
2010-09-09
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