Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia
Abstract Patterned ground is a characteristic periglacial landform in polar and alpine environments but has not been systematically studied in karst caves. Here we characterize the periglacial environment and sorted stripes within the Ledenica pod Hrušico ice cave, western Slovenia. The stripes were...
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crwiley:10.1002/ppp.1970 2024-06-02T08:13:09+00:00 Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia Obu, Jaroslav Košutnik, Jure Overduin, Paul P. Boike, Julia Blatnik, Matej Zwieback, Simon Gostinčar, Petra Mihevc, Andrej 2018 http://dx.doi.org/10.1002/ppp.1970 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1970 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1970 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 29, issue 2, page 121-130 ISSN 1045-6740 1099-1530 journal-article 2018 crwiley https://doi.org/10.1002/ppp.1970 2024-05-03T10:33:54Z Abstract Patterned ground is a characteristic periglacial landform in polar and alpine environments but has not been systematically studied in karst caves. Here we characterize the periglacial environment and sorted stripes within the Ledenica pod Hrušico ice cave, western Slovenia. The stripes were mapped, sediment depth and grain size were measured, and cave and outside air temperatures were monitored together with ground temperatures. Eleven sorted stripes of coarse limestone debris had developed on 1 m thick silt‐rich sediment, underlain by limestone bedrock. Silt‐rich cave sediments can accumulate as insoluble carbonate residue or during flood events, whereas coarse debris may result from frost shattering. Cold winter air entered the ice cave, but little air exchange occurred during summer, when the cave air temperature slowly rose to a maximum of 5°C. Winter temperature oscillations propagated efficiently to the snow‐free cave floor. Fourteen freeze‐thaw cycles were observed at the patterned‐ground surface during winter 2015/2016 and may cause the differential frost heaving necessary for sediment sorting. Such periglacial conditions and mixtures of silty and coarse sediments can produce sorted patterns in karst caves. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 29 2 121 130 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Patterned ground is a characteristic periglacial landform in polar and alpine environments but has not been systematically studied in karst caves. Here we characterize the periglacial environment and sorted stripes within the Ledenica pod Hrušico ice cave, western Slovenia. The stripes were mapped, sediment depth and grain size were measured, and cave and outside air temperatures were monitored together with ground temperatures. Eleven sorted stripes of coarse limestone debris had developed on 1 m thick silt‐rich sediment, underlain by limestone bedrock. Silt‐rich cave sediments can accumulate as insoluble carbonate residue or during flood events, whereas coarse debris may result from frost shattering. Cold winter air entered the ice cave, but little air exchange occurred during summer, when the cave air temperature slowly rose to a maximum of 5°C. Winter temperature oscillations propagated efficiently to the snow‐free cave floor. Fourteen freeze‐thaw cycles were observed at the patterned‐ground surface during winter 2015/2016 and may cause the differential frost heaving necessary for sediment sorting. Such periglacial conditions and mixtures of silty and coarse sediments can produce sorted patterns in karst caves. |
format |
Article in Journal/Newspaper |
author |
Obu, Jaroslav Košutnik, Jure Overduin, Paul P. Boike, Julia Blatnik, Matej Zwieback, Simon Gostinčar, Petra Mihevc, Andrej |
spellingShingle |
Obu, Jaroslav Košutnik, Jure Overduin, Paul P. Boike, Julia Blatnik, Matej Zwieback, Simon Gostinčar, Petra Mihevc, Andrej Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
author_facet |
Obu, Jaroslav Košutnik, Jure Overduin, Paul P. Boike, Julia Blatnik, Matej Zwieback, Simon Gostinčar, Petra Mihevc, Andrej |
author_sort |
Obu, Jaroslav |
title |
Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
title_short |
Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
title_full |
Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
title_fullStr |
Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
title_full_unstemmed |
Sorted patterned ground in a karst cave, Ledenica pod Hrušico, Slovenia |
title_sort |
sorted patterned ground in a karst cave, ledenica pod hrušico, slovenia |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ppp.1970 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1970 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1970 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 29, issue 2, page 121-130 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.1970 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
29 |
container_issue |
2 |
container_start_page |
121 |
op_container_end_page |
130 |
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1800759844307730432 |