basal glide planes of practically all crystals have become orientated within 15 deg of the horizontal plane of the ice sheet; that is, principal crystallo-graphic axes are all orientated within 15 deg of the vertical. This structure persisted to a depth of 1800 m. Crystals between 1200 and 1800 m we...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.461.5148 http://bioeeos660-f12-bowen.wikispaces.umb.edu/file/view/Schubel+1968.pdf/362245318/Schubel 1968.pdf |
| Summary: | basal glide planes of practically all crystals have become orientated within 15 deg of the horizontal plane of the ice sheet; that is, principal crystallo-graphic axes are all orientated within 15 deg of the vertical. This structure persisted to a depth of 1800 m. Crystals between 1200 and 1800 m were appreciably smaller than crystals observed directly above and below this zone (Fig. 3) which also contained numerous cloudy bands (as thick as 2 cm) of very fine-grained ice that resembled shear layers. All fabric ele-ments observed in this zone, together |
|---|