iizuka_watanabe_2002.html
Bulletin of Glaciological Research 19 (2002) 59-62
©Japanese Society of Snow and Ice
Crystal fabrics of basal ice near Hamna Icefall, East Antarctica
Yoshinori
IIZUKA and Okitsugu WATANABE
National Institute
of Polar Research, Tokyo 173-8515 Japan
The present paper mainly discusses crystal fabrics of debris-laden basal ice near Hamna Icefall, Queen Maud Land, East Antarctica. The basal ice consists of alternating layers of bubble-free and bubbly ice of the order of millimeter to centimeter in thickness. Detailed analysis of crystal fabric of the alternating layers was performed. As a result, the crystal fabrics of the alternating layers have a multiple maximum pattern, and are homogeneous without dependence on the stratigraphy of bubbles. The multiple maximum pattern is suggested to be formed due to by recrystallization. The basal ice is considered to be suffered by recrystallization as a final physical process before the arrival at the Hamna Icefall.
