Metamorphic processes of ice sheet based on crystal texture analysis and deformation test of polar deep ice core

• Project/Area Number: 22540426
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Solid earth and planetary physics
• Research Institution: Hokkaido University
• Principal Investigator: MIYAMOTO Atsushi 北海道大学, 低温科学研究所, 研究員 (00374645)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 氷 / 氷床コア / 結晶組織 / a軸方位 / 力学試験 / X線ラウエ法 / ａ軸方位

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.

Research Products

• [Journal Article] X線ラウエ法による氷結晶の方位解析 (2013)
  • Author(s): 宮本淳
  • Journal Title: 低温科学「氷の物理と化学研究の新展開」 Volume: 71巻 Pages: 59-68
  • URL: http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/52340/3/LTS71_007.pdf
  • Peer Reviewed
• [Journal Article] Ｘ線ラウエ法による氷結晶の方位解析 (2013)
  • Author(s): 宮本 淳
  • Journal Title: 低温科学「氷の物理と化学研究の新展開」 Volume: 71 Pages: 59-68
  • Peer Reviewed
• [Journal Article] Eemian interglacial reconstructed from a Greenland folded ice core (2012)
  • Author(s): NEEM community members
  • Journal Title: Nature Volume: 493 Issue: 7433 Pages: 489-494
  • DOI: 10.1038/nature11789
  • Peer Reviewed
• [Journal Article] Crystal growth of air-hydrates over 720,000 years in Dome Fuji ice cores, Antarctica: microscopic observations of morphological changes below 2000-m depth (2011)
  • Author(s): Tsutomu Uchida, Atsushi Miyamoto,Atsushi Shin'yama and Takeo Hondoh
  • Journal Title: Journal ofGlaciology Volume: 57 Issue: 206 Pages: 1017-1026
  • DOI: 10.3189/002214311798843296
  • Peer Reviewed
• [Journal Article] Complete determination of ice crystal orientation using Laue X-ray diffraction method (2011)
  • Author(s): Atsushi Miyamoto, Ilka Weikusat andTakeo Hondoh
  • Journal Title: Journal ofGlaciology Volume: 57 Issue: 201 Pages: 103-110
  • DOI: 10.3189/002214311795306754
  • NAID: 120003660582
  • Peer Reviewed
• [Journal Article] Subgrain boundaries in Antarctic ice quantified by X-ray Laue diffraction (2011)
  • Author(s): Ilka Weikusat, Atsushi Miyamoto,Sergio H. Faria, Sepp Kipfstuhl, Nobuhiko Azuma and Takeo Hondoh
  • Journal Title: Journal of Glaciology Volume: 57 Issue: 201 Pages: 111-120
  • DOI: 10.3189/002214311795306628
  • Peer Reviewed
• [Journal Article] Crystal growth of air-hydrates over 720,000 years in Dome Fuji ice cores, Antarctica : microscopic observations of morphological changes below 2000-m depth (2011)
  • Author(s): Tsutomu Uchida, Atsushi Miyamoto, Atsushi Shin'yama, Takeo Hondoh
  • Journal Title: Journal of Glaciology Volume: Vol.57 Pages: 1017-1026
  • Peer Reviewed
• [Journal Article] Complete determination of ice crystal orientation using Laue X-ray diffraction method (2011)
  • Author(s): Atsushi MIYAMOTO, Ilka WEIKUSAT, Takeo HONDOH
  • Journal Title: Journal of Glaciology Volume: Vol.57 Pages: 103-110
  • NAID: 120003660582
  • Peer Reviewed
• [Journal Article] Subgrain boundaries in Antarctic ice quantified by X-ray Laue diffraction (2011)
  • Author(s): Ilka WEIKUSAT, Atsushi MIYAMOTO, Sergio H.FARIA, Sepp KIPFSTUHL, Nobuhiko AZUMA, Takeo HONDOH
  • Journal Title: Journal of Glaciology Volume: Vol.57 Pages: 111-120
  • Peer Reviewed
• [Presentation] X線回折法によるグリーンランドNEEMコアの氷の構造に関する研究 (2012)
  • Author(s): 堀彰、宮本淳、東信彦、東久美子、本堂武夫
  • Organizer: 第3回極域科学シンポジウム
  • Place of Presentation: 国立極地研究所、東京
  • Year and Date: 2012-11-29
• [Presentation] X-ray diffraction study of the NEEM ice core (2012)
  • 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
• [Presentation] Ice microstructure in Antarctic deep drilling samples (EDML): Cryogenic EBSD, X-ray Laue diffraction and optical microscopy (2011)
  • Author(s): Ilka Weikusat, Atsushi Miyamoto, GillM. Pennock, Sepp Kipfstuhl, Sergio H. Faria, Nobuhiko Azuma and Martyn R. Drury
  • Organizer: Ice deformation conference 2011
  • Place of Presentation: MINATEC conference center, Grenoble, France
  • Year and Date: 2011-11-09
• [Presentation] Ice microstructure in Antarctic deep drilling samples (EDML) : Cryogenic EBSD,X-ray Laue diffraction and optical microscopy (2011)
  • Author(s): Ilka Weikusat, Atsushi Miyamoto, Gill M.Pennock, Sepp Kipfstuhl, Sergio H.Faria, Nobuhiko Azuma, Martyn R.Drury
  • Organizer: Ice deformation conference 2011
  • Place of Presentation: MINATEC conference center(フランス)
  • Year and Date: 2011-11-09
• [Presentation] Dislocation activity in Antarctic ice (2010)
  • 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
• [Presentation] Dislocation activity in Antarctic ice (2010)
  • Author(s): Ilka WEIKUSAT, Atsushi MIYAMOTO, Sergio H.FARIA, Gill M.PENNOCK, Nobuhiko AZUMA, Takeo HONDOH, Martyn R.DRURY, Sepp KIPFSTUHL
  • Organizer: 12th International Conference on the Physics and Chemistry of Ice
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-09-09
• [Presentation] Characterization of subgrain boundary types in polar ice (EPICA-DML ice core) (2010)
  • Author(s): Ilka Weikusat, Atsushi Miyamoto,Martyn R. Drury,Sepp Kipfstuhl, Sergio H. Faria, Gill M. Pennock and Nobuhiko Azuma
  • Organizer: European Geosciences Union General Assembly 2010
  • Place of Presentation: Austria CenterVienna, Vienna, Austria
  • Year and Date: 2010-05-05
• [Presentation] Characterization of subgrain boundary types in polar ice (EPICA-DML ice core) (2010)
  • Author(s): Ilka WEIKUSAT, Atsushi MIYAMOTO, Martyn R.DRURY, Sepp KIPFSTUHL, Sergio H.FARIA, Gill M.PENNOCK, Nobuhiko AZUMA
  • Organizer: European Geosciences Union General Assembly 2010
  • Place of Presentation: Austria Center Vienna(ウィーン、オーストリア)
  • Year and Date: 2010-05-05
• [Presentation] X線回折法によるグリーンランドNEEMコアの氷の構造に関する研究
  • Author(s): 堀 彰、宮本 淳、東 信彦、東 久美子、本堂武夫
  • Organizer: 第３回極域科学シンポジウム
  • Place of Presentation: 国立極地研究所（東京都）
• [Presentation] X-ray diffraction study of the NEEM ice core
  • 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（フランス）