Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications
During the last 50 ka, cryogenic wedges on the Ordos Plateau formed during three major periods: (i) early local Last Glaciation, ca. 50 ka BP; (iii) local Last Permafrost Maximum(local LPM), 25–19 ka BP; and (v) post-local LPM, 16–9 ka BP. Cryoturbations mainly formed in the following periods: (ii)...
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Online Access: | https://research.vu.nl/en/publications/2125dead-8f87-4755-900a-348ae0fe173a https://doi.org/10.1002/ppp.2084 https://hdl.handle.net/1871.1/2125dead-8f87-4755-900a-348ae0fe173a https://research.vu.nl/ws/files/224586919/Cryogenic_wedges_and_cryoturbations_on_the_Ordos_Plateau_in_North_China_since_50_ka_BP_and_their_paleoenvironmental_implications.pdf https://www.mendeley.com/catalogue/af89fea9-aa2f-37cd-93d4-7f157537f4c0/ |
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ftvuamstcris:oai:research.vu.nl:publications/2125dead-8f87-4755-900a-348ae0fe173a 2024-10-13T14:10:12+00:00 Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications He, Ruixia Jin, Huijun French, Hugh M. Vandenberghe, Jef Li, Xiaoying Li, Fang Jiang, Guanli Zhang, Ze Chen, Xuemei Serban, Raul D. Wang, Shaoling Guo, Dongxin 2021-04 application/pdf https://research.vu.nl/en/publications/2125dead-8f87-4755-900a-348ae0fe173a https://doi.org/10.1002/ppp.2084 https://hdl.handle.net/1871.1/2125dead-8f87-4755-900a-348ae0fe173a https://research.vu.nl/ws/files/224586919/Cryogenic_wedges_and_cryoturbations_on_the_Ordos_Plateau_in_North_China_since_50_ka_BP_and_their_paleoenvironmental_implications.pdf https://www.mendeley.com/catalogue/af89fea9-aa2f-37cd-93d4-7f157537f4c0/ eng eng info:eu-repo/semantics/openAccess He , R , Jin , H , French , H M , Vandenberghe , J , Li , X , Li , F , Jiang , G , Zhang , Z , Chen , X , Serban , R D , Wang , S & Guo , D 2021 , ' Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications ' , Permafrost and Periglacial Processes , vol. 32 , no. 2 , pp. 231-247 . https://doi.org/10.1002/ppp.2084 Last Glacial Maximum Last Permafrost Maximum Ordos Plateau cryogenic wedges cryoturbations article 2021 ftvuamstcris https://doi.org/10.1002/ppp.2084 2024-10-03T00:23:17Z During the last 50 ka, cryogenic wedges on the Ordos Plateau formed during three major periods: (i) early local Last Glaciation, ca. 50 ka BP; (iii) local Last Permafrost Maximum(local LPM), 25–19 ka BP; and (v) post-local LPM, 16–9 ka BP. Cryoturbations mainly formed in the following periods: (ii) pre-local LPM, 45–30 ka BP and (iv) ~ 20 ka BP. The coldest periods with well-developed permafrost (i and iii) were most conducive for forming cryogenic wedges. The following periods of warming climate and degrading permafrost favored the formation of cryoturbations. During the local LPM, sand wedges and polygons were well developed and widely distributed on the Ordos Plateau when mean annual air temperatures (MAATs) were approximately 12°C lower than that at present. At ~30 ka BP, MAAT was 6–7°C lower than that at present. Paleoclimate conditions on the Ordos Plateau were reconstructed since 50 ka BP as follows: cold (ca. 50 ka BP) → cool (45–30 ka BP) → very cold (25–19 ka BP) → cool (19–9 ka BP) → intermittent warming until the present day. The amount of precipitation fluctuated, but with a general trend of drying since 50 ka BP. Under the next generally warming climate (after 9 ka BP), permafrost gradually degraded and eventually disappeared from the Ordos Plateau. Article in Journal/Newspaper permafrost Permafrost and Periglacial Processes wedge* Vrije Universiteit Amsterdam (VU): Research Portal Permafrost and Periglacial Processes 32 2 231 247 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Last Glacial Maximum Last Permafrost Maximum Ordos Plateau cryogenic wedges cryoturbations |
spellingShingle |
Last Glacial Maximum Last Permafrost Maximum Ordos Plateau cryogenic wedges cryoturbations He, Ruixia Jin, Huijun French, Hugh M. Vandenberghe, Jef Li, Xiaoying Li, Fang Jiang, Guanli Zhang, Ze Chen, Xuemei Serban, Raul D. Wang, Shaoling Guo, Dongxin Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
topic_facet |
Last Glacial Maximum Last Permafrost Maximum Ordos Plateau cryogenic wedges cryoturbations |
description |
During the last 50 ka, cryogenic wedges on the Ordos Plateau formed during three major periods: (i) early local Last Glaciation, ca. 50 ka BP; (iii) local Last Permafrost Maximum(local LPM), 25–19 ka BP; and (v) post-local LPM, 16–9 ka BP. Cryoturbations mainly formed in the following periods: (ii) pre-local LPM, 45–30 ka BP and (iv) ~ 20 ka BP. The coldest periods with well-developed permafrost (i and iii) were most conducive for forming cryogenic wedges. The following periods of warming climate and degrading permafrost favored the formation of cryoturbations. During the local LPM, sand wedges and polygons were well developed and widely distributed on the Ordos Plateau when mean annual air temperatures (MAATs) were approximately 12°C lower than that at present. At ~30 ka BP, MAAT was 6–7°C lower than that at present. Paleoclimate conditions on the Ordos Plateau were reconstructed since 50 ka BP as follows: cold (ca. 50 ka BP) → cool (45–30 ka BP) → very cold (25–19 ka BP) → cool (19–9 ka BP) → intermittent warming until the present day. The amount of precipitation fluctuated, but with a general trend of drying since 50 ka BP. Under the next generally warming climate (after 9 ka BP), permafrost gradually degraded and eventually disappeared from the Ordos Plateau. |
format |
Article in Journal/Newspaper |
author |
He, Ruixia Jin, Huijun French, Hugh M. Vandenberghe, Jef Li, Xiaoying Li, Fang Jiang, Guanli Zhang, Ze Chen, Xuemei Serban, Raul D. Wang, Shaoling Guo, Dongxin |
author_facet |
He, Ruixia Jin, Huijun French, Hugh M. Vandenberghe, Jef Li, Xiaoying Li, Fang Jiang, Guanli Zhang, Ze Chen, Xuemei Serban, Raul D. Wang, Shaoling Guo, Dongxin |
author_sort |
He, Ruixia |
title |
Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
title_short |
Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
title_full |
Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
title_fullStr |
Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
title_full_unstemmed |
Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications |
title_sort |
cryogenic wedges and cryoturbations on the ordos plateau in north china since 50 ka bp and their paleoenvironmental implications |
publishDate |
2021 |
url |
https://research.vu.nl/en/publications/2125dead-8f87-4755-900a-348ae0fe173a https://doi.org/10.1002/ppp.2084 https://hdl.handle.net/1871.1/2125dead-8f87-4755-900a-348ae0fe173a https://research.vu.nl/ws/files/224586919/Cryogenic_wedges_and_cryoturbations_on_the_Ordos_Plateau_in_North_China_since_50_ka_BP_and_their_paleoenvironmental_implications.pdf https://www.mendeley.com/catalogue/af89fea9-aa2f-37cd-93d4-7f157537f4c0/ |
genre |
permafrost Permafrost and Periglacial Processes wedge* |
genre_facet |
permafrost Permafrost and Periglacial Processes wedge* |
op_source |
He , R , Jin , H , French , H M , Vandenberghe , J , Li , X , Li , F , Jiang , G , Zhang , Z , Chen , X , Serban , R D , Wang , S & Guo , D 2021 , ' Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications ' , Permafrost and Periglacial Processes , vol. 32 , no. 2 , pp. 231-247 . https://doi.org/10.1002/ppp.2084 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/ppp.2084 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
32 |
container_issue |
2 |
container_start_page |
231 |
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247 |
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1812817380893523968 |