Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A.
Abstract A more detailed examination is made of the stress-generated ice crystallization features already discussed by LaChapelle (1968), using mainly thin-section techniques. The crystallization features on the walls of a tunnel within the Blue Glacier are localized at fine-grained layers and are l...
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Language: | English |
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Cambridge University Press (CUP)
1970
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Online Access: | http://dx.doi.org/10.1017/s0022143000026812 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000026812 |
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crcambridgeupr:10.1017/s0022143000026812 2024-03-03T08:46:05+00:00 Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. Knight, Charles A. LaChapelle, E. 1970 http://dx.doi.org/10.1017/s0022143000026812 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000026812 en eng Cambridge University Press (CUP) Journal of Glaciology volume 9, issue 55, page 87-101 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1970 crcambridgeupr https://doi.org/10.1017/s0022143000026812 2024-02-08T08:42:50Z Abstract A more detailed examination is made of the stress-generated ice crystallization features already discussed by LaChapelle (1968), using mainly thin-section techniques. The crystallization features on the walls of a tunnel within the Blue Glacier are localized at fine-grained layers and are led by liquid water traveling along grain boundaries within the wall and within the deposits themselves. The water filling the crevasse encountered at the end of the tunnel was freezing uniformly to the crevasse walls as well as forming Thomson crystals within the water, and the evidence points to an important role for constitutional super-cooling in the Thomson crystal formation. The forms of most of the Thomson crystals are explainable qualitatively by beat flow effects. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Blue Glacier ENVELOPE(164.167,164.167,-77.833,-77.833) Journal of Glaciology 9 55 87 101 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Knight, Charles A. LaChapelle, E. Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
topic_facet |
Earth-Surface Processes |
description |
Abstract A more detailed examination is made of the stress-generated ice crystallization features already discussed by LaChapelle (1968), using mainly thin-section techniques. The crystallization features on the walls of a tunnel within the Blue Glacier are localized at fine-grained layers and are led by liquid water traveling along grain boundaries within the wall and within the deposits themselves. The water filling the crevasse encountered at the end of the tunnel was freezing uniformly to the crevasse walls as well as forming Thomson crystals within the water, and the evidence points to an important role for constitutional super-cooling in the Thomson crystal formation. The forms of most of the Thomson crystals are explainable qualitatively by beat flow effects. |
format |
Article in Journal/Newspaper |
author |
Knight, Charles A. LaChapelle, E. |
author_facet |
Knight, Charles A. LaChapelle, E. |
author_sort |
Knight, Charles A. |
title |
Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
title_short |
Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
title_full |
Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
title_fullStr |
Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
title_full_unstemmed |
Further Observations on Stress-generated Ice in the Blue Glacier, Washington, U.S.A. |
title_sort |
further observations on stress-generated ice in the blue glacier, washington, u.s.a. |
publisher |
Cambridge University Press (CUP) |
publishDate |
1970 |
url |
http://dx.doi.org/10.1017/s0022143000026812 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000026812 |
long_lat |
ENVELOPE(164.167,164.167,-77.833,-77.833) |
geographic |
Blue Glacier |
geographic_facet |
Blue Glacier |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 9, issue 55, page 87-101 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000026812 |
container_title |
Journal of Glaciology |
container_volume |
9 |
container_issue |
55 |
container_start_page |
87 |
op_container_end_page |
101 |
_version_ |
1792501955691544576 |