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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Bibliographic Details
Main Authors: Hitoshi Shoji, Atau Mitani, Kohji Horita
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Antarctic
Antarc*
ice core
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
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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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