Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China)
Unusually large cryoturbation structures (4-4.5 m amplitude), developed in channel gravels and overbank fine-grained deposits of a river terrace on the NE Tibet Plateau, China, were formed by loadcasting as late Pleistocene-age permafrost degraded. It is suggested that the oversaturation and liquefa...
Published in: | Permafrost and Periglacial Processes |
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Language: | English |
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Online Access: | https://research.vu.nl/en/publications/c608e192-4971-450a-8b4f-3cfd76f2afb8 https://doi.org/10.1002/ppp.1847 http://hdl.handle.net/1871.1/c608e192-4971-450a-8b4f-3cfd76f2afb8 |
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ftvuamstcris:oai:research.vu.nl:publications/c608e192-4971-450a-8b4f-3cfd76f2afb8 2023-05-15T16:36:54+02:00 Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) Vandenberghe, J.F. Wang, X. Vandenberghe, D. 2016 https://research.vu.nl/en/publications/c608e192-4971-450a-8b4f-3cfd76f2afb8 https://doi.org/10.1002/ppp.1847 http://hdl.handle.net/1871.1/c608e192-4971-450a-8b4f-3cfd76f2afb8 eng eng info:eu-repo/semantics/closedAccess Vandenberghe , J F , Wang , X & Vandenberghe , D 2016 , ' Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) ' , Permafrost and Periglacial Processes , vol. 27 , pp. 138-143 . https://doi.org/10.1002/ppp.1847 article 2016 ftvuamstcris https://doi.org/10.1002/ppp.1847 2022-01-17T13:13:36Z Unusually large cryoturbation structures (4-4.5 m amplitude), developed in channel gravels and overbank fine-grained deposits of a river terrace on the NE Tibet Plateau, China, were formed by loadcasting as late Pleistocene-age permafrost degraded. It is suggested that the oversaturation and liquefaction of the thawed sediments could have been achieved only if the amount of ice in the upper 4-4.5 m of terrace sediments had been very high. The structures, dated at around 26-20 ka by OSL, point to the presence of a massive icy layer existing within a permafrost body during the Last Permafrost Maximum. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Vrije Universiteit Amsterdam (VU): Research Portal Permafrost and Periglacial Processes 27 1 138 143 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
description |
Unusually large cryoturbation structures (4-4.5 m amplitude), developed in channel gravels and overbank fine-grained deposits of a river terrace on the NE Tibet Plateau, China, were formed by loadcasting as late Pleistocene-age permafrost degraded. It is suggested that the oversaturation and liquefaction of the thawed sediments could have been achieved only if the amount of ice in the upper 4-4.5 m of terrace sediments had been very high. The structures, dated at around 26-20 ka by OSL, point to the presence of a massive icy layer existing within a permafrost body during the Last Permafrost Maximum. |
format |
Article in Journal/Newspaper |
author |
Vandenberghe, J.F. Wang, X. Vandenberghe, D. |
spellingShingle |
Vandenberghe, J.F. Wang, X. Vandenberghe, D. Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
author_facet |
Vandenberghe, J.F. Wang, X. Vandenberghe, D. |
author_sort |
Vandenberghe, J.F. |
title |
Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
title_short |
Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
title_full |
Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
title_fullStr |
Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
title_full_unstemmed |
Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) |
title_sort |
very large cryoturbation structures of last permafrost maximum age at the foot of the qilian mountains (ne tibet plateau, china) |
publishDate |
2016 |
url |
https://research.vu.nl/en/publications/c608e192-4971-450a-8b4f-3cfd76f2afb8 https://doi.org/10.1002/ppp.1847 http://hdl.handle.net/1871.1/c608e192-4971-450a-8b4f-3cfd76f2afb8 |
genre |
Ice permafrost Permafrost and Periglacial Processes |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes |
op_source |
Vandenberghe , J F , Wang , X & Vandenberghe , D 2016 , ' Very large cryoturbation structures of Last Permafrost Maximum age at the foot of the Qilian Mountains (NE Tibet Plateau, China) ' , Permafrost and Periglacial Processes , vol. 27 , pp. 138-143 . https://doi.org/10.1002/ppp.1847 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/ppp.1847 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
27 |
container_issue |
1 |
container_start_page |
138 |
op_container_end_page |
143 |
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1766027219037061120 |