Mechanical properties and crystal textures of Greenland deep ice cores

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Title: Mechanical properties and crystal textures of Greenland deep ice cores

博士論文

資料形態 : テキストデータプレーンテキスト

コレクション : 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文

学位論文本体及び論文要旨 : 1-124コマ

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CONTENTS
Abstract
1.Introduction
1.1.The earth environment and climate change
1.2.Ice core studies
2.Plastic flow of ice
2.1.Mechanical properties of ice single crystal
2.2.Mechanical properties of polycrystalline ice
3.Greenland ice sheet
3.1.Greenland ice core project(GRIP)
3.2.The GRIP ice core
4.Experiments
4.1.Electric conductivity measurements
4.2.Grain size measurements
4.3.C-axis orientation measurements and statistics for analysis of directional data
4.4.Stratigraphic studies
4.5.Mechanical tests of ice core
5.Results
5.1.Electric conductivity measurements
5.2.Grain size
5.3.C-axis orientation distribution
5.4.Stratigraphic studies
5.5.Mechanical tests of ice core
6.Discussion
6.1.Flow enhancement factor
6.2.Schmid factor
6.3.Effect of various factor on mechanical properties of ice cores
6.4.The development of c-axis orientation and flow behavior in the Greenland ice sheet
7.Application to ice sheet flow
7.1.Horizontal flow velocity
7.2.Instability of dome position
7.3.Flow behavior of ice with cloudy band structure
7.4.Mechanical properties of the Dome F ice core from the dome summit of Antarctica
8.Conclusions
Acknowledgments
References
AN ATTEMPT AT DEFORMATION TESTS OF DEEP ICE CORE SAMPLES CONTAINING CLOUDY BANDS
Ice sheet flow conditions deduced from mechanical tests of ice core
PRELIMINARY DISCUSSION OF PHYSICAL PROPERTIES OF THE DOME FUJI SHALLOW ICE CORE IN 1993, ANTARCTICA
Anisotropic behavior of GRIP ices and flow in Central Greenland