Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets
Abstract A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice sheets. The mechanism involves the freezing of water onto the bottom surface of an ice sheet. This water comes from regions of the bottom surface where the combination of the geothermal h...
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Language: | English |
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Cambridge University Press (CUP)
1961
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Online Access: | http://dx.doi.org/10.1017/s0022143000017378 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017378 |
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crcambridgeupr:10.1017/s0022143000017378 2024-06-16T07:38:55+00:00 Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets Weertman, J. 1961 http://dx.doi.org/10.1017/s0022143000017378 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017378 en eng Cambridge University Press (CUP) Journal of Glaciology volume 3, issue 30, page 965-978 ISSN 0022-1430 1727-5652 journal-article 1961 crcambridgeupr https://doi.org/10.1017/s0022143000017378 2024-05-22T12:55:29Z Abstract A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice sheets. The mechanism involves the freezing of water onto the bottom surface of an ice sheet. This water comes from regions of the bottom surface where the combination of the geothermal heat and the heat produced by the sliding of ice over the bed is sufficient to melt ice. A number of criticisms are made of the shear hypothesis, which has been advanced to explain moraines occurring on Baffin Island and near Thule, Greenland. It is concluded that this older hypothesis may be inadequate to account for these moraines. Although in theory the mechanism proposed in this paper undoubtedly will lead to the formation of moraines, the existing field data are insufficient to prove conclusively that actual moraines have originated by means of this mechanism. Article in Journal/Newspaper Baffin Island Baffin Greenland Ice Sheet Journal of Glaciology Thule Cambridge University Press Baffin Island Greenland Journal of Glaciology 3 30 965 978 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice sheets. The mechanism involves the freezing of water onto the bottom surface of an ice sheet. This water comes from regions of the bottom surface where the combination of the geothermal heat and the heat produced by the sliding of ice over the bed is sufficient to melt ice. A number of criticisms are made of the shear hypothesis, which has been advanced to explain moraines occurring on Baffin Island and near Thule, Greenland. It is concluded that this older hypothesis may be inadequate to account for these moraines. Although in theory the mechanism proposed in this paper undoubtedly will lead to the formation of moraines, the existing field data are insufficient to prove conclusively that actual moraines have originated by means of this mechanism. |
format |
Article in Journal/Newspaper |
author |
Weertman, J. |
spellingShingle |
Weertman, J. Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
author_facet |
Weertman, J. |
author_sort |
Weertman, J. |
title |
Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
title_short |
Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
title_full |
Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
title_fullStr |
Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
title_full_unstemmed |
Mechanism for the Formation of Inner Moraines Found Near the Edge of Cold Ice Caps and Ice sheets |
title_sort |
mechanism for the formation of inner moraines found near the edge of cold ice caps and ice sheets |
publisher |
Cambridge University Press (CUP) |
publishDate |
1961 |
url |
http://dx.doi.org/10.1017/s0022143000017378 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017378 |
geographic |
Baffin Island Greenland |
geographic_facet |
Baffin Island Greenland |
genre |
Baffin Island Baffin Greenland Ice Sheet Journal of Glaciology Thule |
genre_facet |
Baffin Island Baffin Greenland Ice Sheet Journal of Glaciology Thule |
op_source |
Journal of Glaciology volume 3, issue 30, page 965-978 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000017378 |
container_title |
Journal of Glaciology |
container_volume |
3 |
container_issue |
30 |
container_start_page |
965 |
op_container_end_page |
978 |
_version_ |
1802005630941134848 |