Frost weathering: recent advances and future directions
Abstract This paper reviews frost‐weathering studies in the last five years and proposes key questions to be answered. New techniques have enabled us to monitor moisture contents and crack movements in near‐surface hard jointed bedrock and to evaluate seasonal rockfall activity in high mountains. Fi...
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crwiley:10.1002/ppp.620 2024-06-23T07:53:37+00:00 Frost weathering: recent advances and future directions Matsuoka, Norikazu Murton, Julian 2008 http://dx.doi.org/10.1002/ppp.620 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.620 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.620 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 19, issue 2, page 195-210 ISSN 1045-6740 1099-1530 journal-article 2008 crwiley https://doi.org/10.1002/ppp.620 2024-06-13T04:22:00Z Abstract This paper reviews frost‐weathering studies in the last five years and proposes key questions to be answered. New techniques have enabled us to monitor moisture contents and crack movements in near‐surface hard jointed bedrock and to evaluate seasonal rockfall activity in high mountains. Field monitoring has highlighted the roles of diurnal and annual frost cycles in controlling the timing and magnitude of frost weathering. In the laboratory, bidirectional freezing in soft, porous rocks has produced fractures containing segregated ice layers near the permafrost table, which imply the development of ice‐filled fractures in permafrost bedrock over long time‐scales. This finding, combined with numerical modelling of the thermal regime in permafrost rock slopes, contributes to the prediction of large‐scale rockfalls and rock avalanches triggered by permafrost degradation. Future studies should also focus on explosive shattering, frost weathering of hard‐intact rocks, field monitoring of ice segregation and bedrock heave, and the role of frost weathering in landscape evolution. Copyright © 2008 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 19 2 195 210 |
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Wiley Online Library |
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English |
description |
Abstract This paper reviews frost‐weathering studies in the last five years and proposes key questions to be answered. New techniques have enabled us to monitor moisture contents and crack movements in near‐surface hard jointed bedrock and to evaluate seasonal rockfall activity in high mountains. Field monitoring has highlighted the roles of diurnal and annual frost cycles in controlling the timing and magnitude of frost weathering. In the laboratory, bidirectional freezing in soft, porous rocks has produced fractures containing segregated ice layers near the permafrost table, which imply the development of ice‐filled fractures in permafrost bedrock over long time‐scales. This finding, combined with numerical modelling of the thermal regime in permafrost rock slopes, contributes to the prediction of large‐scale rockfalls and rock avalanches triggered by permafrost degradation. Future studies should also focus on explosive shattering, frost weathering of hard‐intact rocks, field monitoring of ice segregation and bedrock heave, and the role of frost weathering in landscape evolution. Copyright © 2008 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Matsuoka, Norikazu Murton, Julian |
spellingShingle |
Matsuoka, Norikazu Murton, Julian Frost weathering: recent advances and future directions |
author_facet |
Matsuoka, Norikazu Murton, Julian |
author_sort |
Matsuoka, Norikazu |
title |
Frost weathering: recent advances and future directions |
title_short |
Frost weathering: recent advances and future directions |
title_full |
Frost weathering: recent advances and future directions |
title_fullStr |
Frost weathering: recent advances and future directions |
title_full_unstemmed |
Frost weathering: recent advances and future directions |
title_sort |
frost weathering: recent advances and future directions |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1002/ppp.620 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.620 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.620 |
genre |
Ice permafrost Permafrost and Periglacial Processes |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 19, issue 2, page 195-210 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.620 |
container_title |
Permafrost and Periglacial Processes |
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19 |
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2 |
container_start_page |
195 |
op_container_end_page |
210 |
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1802645366721478656 |