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  1. 学術雑誌掲載済論文
  2. 洋雑誌

Preliminary Results of Structural Analyses of an 85.6m Deep Ice Core Retrieved from Hoghetta Ice Dome in Northern Spitsbergen, Svalbard.

https://kitami-it.repo.nii.ac.jp/records/6923
https://kitami-it.repo.nii.ac.jp/records/6923
29143299-d9f5-4db9-934b-0b93fb79e6a1
名前 / ファイル ライセンス アクション
5051.pdf 5051.pdf (3.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-04-19
タイトル
言語 en
タイトル Preliminary Results of Structural Analyses of an 85.6m Deep Ice Core Retrieved from Hoghetta Ice Dome in Northern Spitsbergen, Svalbard.
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
著者 KAWAMURA, Toshiyuki

× KAWAMURA, Toshiyuki

WEKO 35043

en KAWAMURA, Toshiyuki

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KAMEDA, Takao

× KAMEDA, Takao

WEKO 35044

en KAMEDA, Takao

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IZUMI, Kaoru

× IZUMI, Kaoru

WEKO 35045

en IZUMI, Kaoru

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著者別名
姓名 亀田, 貴雄
言語 ja
抄録
内容記述タイプ Abstract
内容記述 In 1987 an ice core to bedrock at a depth of 85.61m was recovered at Hoghetta ice dome in northern Spitsbergen. The ice temperature measured in the borehole was -11℃ at 10m depth and -9.4℃ at the bottom. Sudden transitions from large grains to small ones were observed in vertical thin sections of grains near the surface. These boundaries seem to indicate the discontinuity of the ice formation process which occurs periodically every year. Therefore, the boundaries can be used for identifying annual layers. From structural analyses of the ice cores at different 10 depths, it was found that grains of ice were inter-locked and have irregular boundary shapes in the middle depths. Some of them showed an elongated shape, the orientations of which seem to be perpendicular to the girdle plane derived from ice fabrics. These interlocking and elongated grains, along with characteristics of ice fabrics, can be related to a past specific stress condition in the ice body. We can speculate that the ice of the middle depth (approximately 20m - 65m) is remnant ice from a larger ice cap than at present, spread over northern Spitsbergen after the hypsithermal period.
書誌情報 Bulletin of Glacier Research

号 9, p. 77-83, 発行日 1991-04
権利
権利情報 Japanese Society of Snow and Ice, T. Kawamura, T. Kameda and K. Izumi, Bulletin of Glacier Research, 9, 1991, 77-83.
フォーマット
内容記述タイプ Other
内容記述 application/pdf
出版者
出版者 日本雪氷学会1
著者版フラグ
値 publisher
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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