Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis
Abstract Windy pits are open fissures within the Corallian strata of the North York Moors. Here we present nine thermal ionization mass spectrometry (TIMS) U–Th dates on speleothem from the windy pits, the first radiometric dates on calcite for these features and for this region. The dates cluster w...
Published in: | Earth Surface Processes and Landforms |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/esp.1752 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fesp.1752 https://onlinelibrary.wiley.com/doi/pdf/10.1002/esp.1752 |
id |
crwiley:10.1002/esp.1752 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/esp.1752 2024-06-02T08:08:01+00:00 Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis Murphy, P. J. Lundberg, J. 2008 http://dx.doi.org/10.1002/esp.1752 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fesp.1752 https://onlinelibrary.wiley.com/doi/pdf/10.1002/esp.1752 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Earth Surface Processes and Landforms volume 34, issue 2, page 305-313 ISSN 0197-9337 1096-9837 journal-article 2008 crwiley https://doi.org/10.1002/esp.1752 2024-05-03T11:27:11Z Abstract Windy pits are open fissures within the Corallian strata of the North York Moors. Here we present nine thermal ionization mass spectrometry (TIMS) U–Th dates on speleothem from the windy pits, the first radiometric dates on calcite for these features and for this region. The dates cluster within three time periods: the interglacial peaks of marine isotope stage (MIS) 7 (∼208 to ∼190 ka), MIS 5 (∼127 ka to ∼109 ka) and the Holocene, correlating with the marine isotope record and with the broad pattern of interglacial calcite deposition observed for northern England. However, of the two high‐resolution studies available for comparison, the windy‐pit dates match only the Lancaster Hole dates. The location of the windy pits outside of the Devensian ice limits, within the ice‐free but periglaciated region, suggests that the region has remained ice‐free since some time before MIS 7. The prevalence of widespread and prolonged permafrost conditions suggests a plausible mechanism for these open rift caves in slope‐side periglacial mass movement. Copyright © 2008 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice permafrost Wiley Online Library Earth Surface Processes and Landforms 34 2 305 313 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Windy pits are open fissures within the Corallian strata of the North York Moors. Here we present nine thermal ionization mass spectrometry (TIMS) U–Th dates on speleothem from the windy pits, the first radiometric dates on calcite for these features and for this region. The dates cluster within three time periods: the interglacial peaks of marine isotope stage (MIS) 7 (∼208 to ∼190 ka), MIS 5 (∼127 ka to ∼109 ka) and the Holocene, correlating with the marine isotope record and with the broad pattern of interglacial calcite deposition observed for northern England. However, of the two high‐resolution studies available for comparison, the windy‐pit dates match only the Lancaster Hole dates. The location of the windy pits outside of the Devensian ice limits, within the ice‐free but periglaciated region, suggests that the region has remained ice‐free since some time before MIS 7. The prevalence of widespread and prolonged permafrost conditions suggests a plausible mechanism for these open rift caves in slope‐side periglacial mass movement. Copyright © 2008 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Murphy, P. J. Lundberg, J. |
spellingShingle |
Murphy, P. J. Lundberg, J. Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
author_facet |
Murphy, P. J. Lundberg, J. |
author_sort |
Murphy, P. J. |
title |
Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
title_short |
Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
title_full |
Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
title_fullStr |
Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
title_full_unstemmed |
Uranium series dates from the windy pits of the North York Moors, United Kingdom: implications for late Quaternary ice cover and timing of speleogenesis |
title_sort |
uranium series dates from the windy pits of the north york moors, united kingdom: implications for late quaternary ice cover and timing of speleogenesis |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1002/esp.1752 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fesp.1752 https://onlinelibrary.wiley.com/doi/pdf/10.1002/esp.1752 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Earth Surface Processes and Landforms volume 34, issue 2, page 305-313 ISSN 0197-9337 1096-9837 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/esp.1752 |
container_title |
Earth Surface Processes and Landforms |
container_volume |
34 |
container_issue |
2 |
container_start_page |
305 |
op_container_end_page |
313 |
_version_ |
1800753177281167360 |