Annals of Glaciology 18 1993 © Interna tional Glaciological Society
ABSTRACT. Continuous crystal-size measurements made on the G6 Antarctic ice core (lOOm deep) show enhanced growth rates above a depth of30m (Zone 1) and in the interval between 70 and 80 m (Zone 2). Crystal growth in Zone I most probably takes place by a process of sublimation and condensation. The...
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Format: | Text |
Language: | English |
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.9739 http://www.igsoc.org:8080/annals/18/igs_annals_vol18_year1993_pg208-210.pdf |
Summary: | ABSTRACT. Continuous crystal-size measurements made on the G6 Antarctic ice core (lOOm deep) show enhanced growth rates above a depth of30m (Zone 1) and in the interval between 70 and 80 m (Zone 2). Crystal growth in Zone I most probably takes place by a process of sublimation and condensation. The higher growth rate in Zone 2 is most probably related to the pore close-off transformation process in which a non-uniform strain field is created to form air bubbles by plastic deformation and "cannibalization " of individual ice crystals. |
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