Measurements of surface energy of air-hydrate crystals in Vostok ice core, Antarctica

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概要

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• Microscopic observations of thin sections of Vostok ice cores, Antarctica, showed that various shapes and sizes of air-hydrate crystals are located on the grain boundaries. The surface energy of air-hydrate crystal was measured on 41 crystals in 7 different depth ice cores. These measurements revealed that the surface energy of air-hydrate was almost constant at all depths below 1050m, and that the average ratio between the surface energy of air-hydrate and ice grain boundary energy was 0.97±0.19. The observations also showed that air-hydrate crystals acted as obstacles for ice grain boundary migration.

• 国立極地研究所の論文

著者

• Hondoh Takeo

  Institute of Low Temperature Science, Hokkaido University

• Mae Shinji

  Department of Applied Physics, Hokkaido University

• Morimoto S

  National Institute Of Polar Research Organization Of Information And Systems

• Morimoto Shinji

  National Institute of Polar Research

• Uchida T

  Hokkaido National Industrial Research Institute

• Hondoh Takeo

  Institute Of Low Temperature Science Hokkaido University

• Uchida Tsutomu

  Government Industrial Development Laboratory

• Duval Paul

  Laboratoire de Glaciologie et Geophysique de l'Environnement, CNRS

• Lipenkov Volodya

  The Arctic and Antarctic Research Institute

• Mae Shinji

  Department Of Applied Physics Hokkaido University

• Mae Shinji

  Department Of Applied Physics Faculty Of Engineering Hokkaido University

• Duval Paul

  Laboratoire De Glaciologie Et Geophysique De L'environnement

• Duval Paul

  Laboratoire De Glaciologie Et De Geophysique De L'environnement

• Mae S

  Hokkaido Univ. Sapporo

• Hondoh Takeo

  The Institute Of Low Temperature Science Hokkaido University

• Hondoh T

  Hokkaido Univ. Hokkaido Jpn

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