Bedrock fracture by ice segregation in cold regions
The volumetric expansion of freezing pore water is widely assumed to be a major cause of rock fracture in cold-humid regions. Data from experiments simulating natural freezing regimes indicate that bedrock fracture results instead from ice segregation. Fracture depth and timing are also numerically...
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ftunivsussexfig:oai:figshare.com:article/23320859 2023-06-18T03:39:19+02:00 Bedrock fracture by ice segregation in cold regions Julian Murton Rorik Peterson Jean-Claude Ozouf 2006-11-01T00:00:00Z https://figshare.com/articles/journal_contribution/Bedrock_fracture_by_ice_segregation_in_cold_regions/23320859 unknown 10779/uos.23320859.v1 https://figshare.com/articles/journal_contribution/Bedrock_fracture_by_ice_segregation_in_cold_regions/23320859 Copyright not evaluated Uncategorised value Text Journal contribution 2006 ftunivsussexfig 2023-06-07T23:30:53Z The volumetric expansion of freezing pore water is widely assumed to be a major cause of rock fracture in cold-humid regions. Data from experiments simulating natural freezing regimes indicate that bedrock fracture results instead from ice segregation. Fracture depth and timing are also numerically simulated by coupling heat and mass transfer with a fracture model. The depth and geometry of fractures match those in Arctic permafrost and ice-age weathering profiles. This agreement supports a conceptual model in which ice segregation in near-surface permafrost leads progressively to rock fracture and heave, whereas permafrost degradation leads episodically to melt of segregated ice and rock settlement. Article in Journal/Newspaper Arctic Ice permafrost University of Sussex: Figshare Arctic |
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University of Sussex: Figshare |
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ftunivsussexfig |
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unknown |
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Uncategorised value Julian Murton Rorik Peterson Jean-Claude Ozouf Bedrock fracture by ice segregation in cold regions |
topic_facet |
Uncategorised value |
description |
The volumetric expansion of freezing pore water is widely assumed to be a major cause of rock fracture in cold-humid regions. Data from experiments simulating natural freezing regimes indicate that bedrock fracture results instead from ice segregation. Fracture depth and timing are also numerically simulated by coupling heat and mass transfer with a fracture model. The depth and geometry of fractures match those in Arctic permafrost and ice-age weathering profiles. This agreement supports a conceptual model in which ice segregation in near-surface permafrost leads progressively to rock fracture and heave, whereas permafrost degradation leads episodically to melt of segregated ice and rock settlement. |
format |
Article in Journal/Newspaper |
author |
Julian Murton Rorik Peterson Jean-Claude Ozouf |
author_facet |
Julian Murton Rorik Peterson Jean-Claude Ozouf |
author_sort |
Julian Murton |
title |
Bedrock fracture by ice segregation in cold regions |
title_short |
Bedrock fracture by ice segregation in cold regions |
title_full |
Bedrock fracture by ice segregation in cold regions |
title_fullStr |
Bedrock fracture by ice segregation in cold regions |
title_full_unstemmed |
Bedrock fracture by ice segregation in cold regions |
title_sort |
bedrock fracture by ice segregation in cold regions |
publishDate |
2006 |
url |
https://figshare.com/articles/journal_contribution/Bedrock_fracture_by_ice_segregation_in_cold_regions/23320859 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost |
genre_facet |
Arctic Ice permafrost |
op_relation |
10779/uos.23320859.v1 https://figshare.com/articles/journal_contribution/Bedrock_fracture_by_ice_segregation_in_cold_regions/23320859 |
op_rights |
Copyright not evaluated |
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1769004080131211264 |