Abstract
IN the course of observations on etch channels appearing on the (0001) plane of plastically deformed ice crystals, a photomicrograph reproduced as Fig. 1 was obtained. This shows a pattern of chemical etch pits produced by an etching substance of ethylendichloride at the smooth basal plane of the bottom of a large thermal etch pit. As was reported previously1,2, individual minute etch pits in the figure correspond in the ice crystal to a dislocation which is emerging to the plane of observation perpendicular or at an angle near perpendicular. Examinations3 of etch channels made it clear that channels running in crystallographic orientation <10&1bar;0> or <11&2bar;0> are, in both cases, trails left behind by dislocations moved as a part of non-basal glide systems in ice crystals. Since all the etch pits in Fig. 1 are aligned in orientations of either <10&1bar;0> or <11&2bar;0> , they must correspond to dislocations on the same non-basal glide planes as were considered in the case of etch channels (Fig. 2).
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MUGURUMA, J., HIGASHI, A. Non-basal Glide Bands in Ice Crystals. Nature 198, 573 (1963). https://doi.org/10.1038/198573a0
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DOI: https://doi.org/10.1038/198573a0
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