Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes
Rock moisture content was determined for rock samples on different aspects of rock outcrops on Livingston Island during a summer season. As a result of the dominant rainbearing northerly winds the southern aspect usually has rock moisture levels lower than the northern. The southern aspect, however,...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/517736/ https://doi.org/10.1002/ppp.3430040306 |
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ftnerc:oai:nora.nerc.ac.uk:517736 2023-05-15T13:49:34+02:00 Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes Hall, Kevin 1993 http://nora.nerc.ac.uk/id/eprint/517736/ https://doi.org/10.1002/ppp.3430040306 unknown Wiley Hall, Kevin. 1993 Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes. Permafrost and Periglacial Processes, 4 (3). 245-253. https://doi.org/10.1002/ppp.3430040306 <https://doi.org/10.1002/ppp.3430040306> Publication - Article PeerReviewed 1993 ftnerc https://doi.org/10.1002/ppp.3430040306 2023-02-04T19:45:20Z Rock moisture content was determined for rock samples on different aspects of rock outcrops on Livingston Island during a summer season. As a result of the dominant rainbearing northerly winds the southern aspect usually has rock moisture levels lower than the northern. The southern aspect, however, experiences high rock moisture levels during periods of snowmelt; snow accumulates on the southern, lee-side of the rock outcrops. Wetting and drying events are more frequent on the northern exposure, although not as common as at a site open through the full 360°, while the southern aspect tends to experience continuous, low moisture levels with infrequent dry events. Contrary to earlier suggestions, freeze–thaw weathering does not appear to be a major factor during the summer. Although rock moisture levels are conducive to freeze–thaw, rock temperatures rarely go below 0°C. Rather, it appears that weathering due to wetting and drying may be more common on the northern aspects than was previously thought while chemical weathering is active on southerly aspects. Rock moisture levels may support rock damage due to segregation ice during the winter freeze when the rate of freezing is slowed by the overlying snow cover. Article in Journal/Newspaper Antarc* Antarctic Livingston Island Permafrost and Periglacial Processes Natural Environment Research Council: NERC Open Research Archive Antarctic High Rock ENVELOPE(-111.452,-111.452,58.917,58.917) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Permafrost and Periglacial Processes 4 3 245 253 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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description |
Rock moisture content was determined for rock samples on different aspects of rock outcrops on Livingston Island during a summer season. As a result of the dominant rainbearing northerly winds the southern aspect usually has rock moisture levels lower than the northern. The southern aspect, however, experiences high rock moisture levels during periods of snowmelt; snow accumulates on the southern, lee-side of the rock outcrops. Wetting and drying events are more frequent on the northern exposure, although not as common as at a site open through the full 360°, while the southern aspect tends to experience continuous, low moisture levels with infrequent dry events. Contrary to earlier suggestions, freeze–thaw weathering does not appear to be a major factor during the summer. Although rock moisture levels are conducive to freeze–thaw, rock temperatures rarely go below 0°C. Rather, it appears that weathering due to wetting and drying may be more common on the northern aspects than was previously thought while chemical weathering is active on southerly aspects. Rock moisture levels may support rock damage due to segregation ice during the winter freeze when the rate of freezing is slowed by the overlying snow cover. |
format |
Article in Journal/Newspaper |
author |
Hall, Kevin |
spellingShingle |
Hall, Kevin Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
author_facet |
Hall, Kevin |
author_sort |
Hall, Kevin |
title |
Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
title_short |
Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
title_full |
Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
title_fullStr |
Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
title_full_unstemmed |
Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes |
title_sort |
rock moisture data from livingston island (maritime antarctic) and implications for weathering processes |
publisher |
Wiley |
publishDate |
1993 |
url |
http://nora.nerc.ac.uk/id/eprint/517736/ https://doi.org/10.1002/ppp.3430040306 |
long_lat |
ENVELOPE(-111.452,-111.452,58.917,58.917) ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic High Rock Livingston Island |
geographic_facet |
Antarctic High Rock Livingston Island |
genre |
Antarc* Antarctic Livingston Island Permafrost and Periglacial Processes |
genre_facet |
Antarc* Antarctic Livingston Island Permafrost and Periglacial Processes |
op_relation |
Hall, Kevin. 1993 Rock moisture data from Livingston Island (maritime antarctic) and implications for weathering processes. Permafrost and Periglacial Processes, 4 (3). 245-253. https://doi.org/10.1002/ppp.3430040306 <https://doi.org/10.1002/ppp.3430040306> |
op_doi |
https://doi.org/10.1002/ppp.3430040306 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
4 |
container_issue |
3 |
container_start_page |
245 |
op_container_end_page |
253 |
_version_ |
1766251687181287424 |