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...

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Bibliographic Details
Published in:Journal of Glaciology
Main Author: Alley, Richard B.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1992
Subjects:
Earth-Surface Processes
Journal of Glaciology
Online Access:http://dx.doi.org/10.1017/s0022143000009734
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009734
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spelling crcambridgeupr:10.1017/s0022143000009734 2024-03-03T08:45:59+00:00 How can low-pressure channels and deforming tills coexist subglacially? Alley, Richard B. 1992 http://dx.doi.org/10.1017/s0022143000009734 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009734 en eng Cambridge University Press (CUP) Journal of Glaciology volume 38, issue 128, page 200-207 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1992 crcambridgeupr https://doi.org/10.1017/s0022143000009734 2024-02-08T08:42:50Z 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. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 38 128 200 207
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
topic Earth-Surface Processes
spellingShingle Earth-Surface Processes
Alley, Richard B.
How can low-pressure channels and deforming tills coexist subglacially?
topic_facet Earth-Surface Processes
description 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.
format Article in Journal/Newspaper
author Alley, Richard B.
author_facet Alley, Richard B.
author_sort Alley, Richard B.
title How can low-pressure channels and deforming tills coexist subglacially?
title_short How can low-pressure channels and deforming tills coexist subglacially?
title_full How can low-pressure channels and deforming tills coexist subglacially?
title_fullStr How can low-pressure channels and deforming tills coexist subglacially?
title_full_unstemmed How can low-pressure channels and deforming tills coexist subglacially?
title_sort how can low-pressure channels and deforming tills coexist subglacially?
publisher Cambridge University Press (CUP)
publishDate 1992
url http://dx.doi.org/10.1017/s0022143000009734
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009734
genre Journal of Glaciology
genre_facet Journal of Glaciology
op_source Journal of Glaciology
volume 38, issue 128, page 200-207
ISSN 0022-1430 1727-5652
op_doi https://doi.org/10.1017/s0022143000009734
container_title Journal of Glaciology
container_volume 38
container_issue 128
container_start_page 200
op_container_end_page 207
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