Brittle zone and air-hydrate formation in polar ice sheets

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概要

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• Microscopic observations of air bubbles and air-hydrate crystals included in the Vostok ice cores, Antarctica, revealed that badly fractured ices were observed in the ice cores having high concentration of air bubbles. They also showed that the transformation of air bubbles to air-hydrate crystals reduced the chance of ice core fracture. In this paper, we suggest a fracture model of an ice core including air bubbles to discuss the depth dependence of ice core brittleness.

• 国立極地研究所の論文

著者

• Shoji Hitoshi

  Kitami Institute of Technology

• Morimoto S

  National Institute Of Polar Research Organization Of Information And Systems

• Morimoto S

  National Inst. Polar Res. Tokyo Jpn

• Uchida T

  Hokkaido National Industrial Research Institute

• HONDOH Takeo

  The Institute of Low Temperature Science, Hokkaido University

• UCHIDA Tsutomu

  Hokkaido National Industrial Research Institute

• Duval Paul

  Laboratoire de Glaciologie et Geophysique de l'Environnement, CNRS

• Lipenkov Volodya

  The Arctic and Antarctic Research Institute

• MAE Shinji

  Faculty of Engineering, Hokkaido University

• Mae Shinji

  Department Of Applied Physics Hokkaido University

• Duval Paul

  Laboratoire De Glaciologie Et Geophysique De L'environnement

• Duval Paul

  Laboratoire De Glaciologie Et De Geophysique De L'environnement

• Mae Shinji

  Faculty Of Engineering Hokkaido University

• Hondoh Takeo

  The Institute Of Low Temperature Science Hokkaido University

• Mae Shinji

  National Institute For Resources And Environment

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