Fabrics of Icing-Mound and Pingo Ice in Permafrost
Abstract Crystallization histories of some ice layers in permafrost are inferred from crystal size, shape, dimensional and lattice orientation, and inclusion patterns. In an icing mound, formed by injection of water beneath frozen active-layer soil, early growth was rapid, indicated by copious small...
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Language: | English |
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Cambridge University Press (CUP)
1978
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Online Access: | http://dx.doi.org/10.1017/s0022143000020967 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000020967 |
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crcambridgeupr:10.1017/s0022143000020967 2024-03-03T08:45:16+00:00 Fabrics of Icing-Mound and Pingo Ice in Permafrost Gell, W. Alan 1978 http://dx.doi.org/10.1017/s0022143000020967 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000020967 en eng Cambridge University Press (CUP) Journal of Glaciology volume 20, issue 84, page 563-569 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1978 crcambridgeupr https://doi.org/10.1017/s0022143000020967 2024-02-08T08:36:10Z Abstract Crystallization histories of some ice layers in permafrost are inferred from crystal size, shape, dimensional and lattice orientation, and inclusion patterns. In an icing mound, formed by injection of water beneath frozen active-layer soil, early growth was rapid, indicated by copious small crystals and bubbles, followed by slower growth giving rise to crystals and bubbles elongate parallel to the freezing direction, c-axes were normal to crystal long axes. In a small pingo, bulk water existed temporarily at the freezing interface and freezing was unidirectional. In a larger pingo, variations in freezing rate were inferred. Later flow of ice modifies growth fabrics. Article in Journal/Newspaper Ice Journal of Glaciology permafrost Cambridge University Press Journal of Glaciology 20 84 563 569 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Gell, W. Alan Fabrics of Icing-Mound and Pingo Ice in Permafrost |
topic_facet |
Earth-Surface Processes |
description |
Abstract Crystallization histories of some ice layers in permafrost are inferred from crystal size, shape, dimensional and lattice orientation, and inclusion patterns. In an icing mound, formed by injection of water beneath frozen active-layer soil, early growth was rapid, indicated by copious small crystals and bubbles, followed by slower growth giving rise to crystals and bubbles elongate parallel to the freezing direction, c-axes were normal to crystal long axes. In a small pingo, bulk water existed temporarily at the freezing interface and freezing was unidirectional. In a larger pingo, variations in freezing rate were inferred. Later flow of ice modifies growth fabrics. |
format |
Article in Journal/Newspaper |
author |
Gell, W. Alan |
author_facet |
Gell, W. Alan |
author_sort |
Gell, W. Alan |
title |
Fabrics of Icing-Mound and Pingo Ice in Permafrost |
title_short |
Fabrics of Icing-Mound and Pingo Ice in Permafrost |
title_full |
Fabrics of Icing-Mound and Pingo Ice in Permafrost |
title_fullStr |
Fabrics of Icing-Mound and Pingo Ice in Permafrost |
title_full_unstemmed |
Fabrics of Icing-Mound and Pingo Ice in Permafrost |
title_sort |
fabrics of icing-mound and pingo ice in permafrost |
publisher |
Cambridge University Press (CUP) |
publishDate |
1978 |
url |
http://dx.doi.org/10.1017/s0022143000020967 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000020967 |
genre |
Ice Journal of Glaciology permafrost |
genre_facet |
Ice Journal of Glaciology permafrost |
op_source |
Journal of Glaciology volume 20, issue 84, page 563-569 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000020967 |
container_title |
Journal of Glaciology |
container_volume |
20 |
container_issue |
84 |
container_start_page |
563 |
op_container_end_page |
569 |
_version_ |
1792500804361388032 |