How can low-pressure channels and deforming tills coexist subglacially?
Abstract Deforming till and low-pressure water channels are observed to coexist subglacially, but till also is observed to creep rapidly into low-pressure subglacial regions. A simple model shows that these observations are not contradictory. Creep of a thin till to a low-pressure region can occur f...
| Published in: | Journal of Glaciology |
|---|---|
| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1992
|
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0022143000009734 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009734 |
| Summary: | Abstract Deforming till and low-pressure water channels are observed to coexist subglacially, but till also is observed to creep rapidly into low-pressure subglacial regions. A simple model shows that these observations are not contradictory. Creep of a thin till to a low-pressure region can occur from a narrow zone only, and will lead to isolation of channels from till farther away. |
|---|