Uranium series dates from the windy pits of the North York Moors, United Kingdom: Implications for late quaternary ice cover and timing of speleogenesis
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 thr...
Published in: | Earth Surface Processes and Landforms |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2009
|
Subjects: | |
Online Access: | https://ir.library.carleton.ca/pub/4375 https://doi.org/10.1002/esp.1752 |
id |
ftcarletonunivir:oai:carleton.ca:4375 |
---|---|
record_format |
openpolar |
spelling |
ftcarletonunivir:oai:carleton.ca:4375 2023-05-15T16:37:26+02:00 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. (Joyce) 2009-06-03 https://ir.library.carleton.ca/pub/4375 https://doi.org/10.1002/esp.1752 en eng https://ir.library.carleton.ca/pub/4375 doi:10.1002/esp.1752 Earth Surface Processes and Landforms vol. 34 no. 2, pp. 305-313 Aveley Glaciation Speleothem TIMS U-Th dating UK Windy pit Yorkshire info:eu-repo/semantics/article 2009 ftcarletonunivir https://doi.org/10.1002/esp.1752 2022-02-06T21:51:55Z 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 Article in Journal/Newspaper Ice permafrost Carleton University's Institutional Repository Earth Surface Processes and Landforms 34 2 305 313 |
institution |
Open Polar |
collection |
Carleton University's Institutional Repository |
op_collection_id |
ftcarletonunivir |
language |
English |
topic |
Aveley Glaciation Speleothem TIMS U-Th dating UK Windy pit Yorkshire |
spellingShingle |
Aveley Glaciation Speleothem TIMS U-Th dating UK Windy pit Yorkshire Murphy, P.J. Lundberg, J. (Joyce) Uranium series dates from the windy pits of the North York Moors, United Kingdom: Implications for late quaternary ice cover and timing of speleogenesis |
topic_facet |
Aveley Glaciation Speleothem TIMS U-Th dating UK Windy pit Yorkshire |
description |
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 |
format |
Article in Journal/Newspaper |
author |
Murphy, P.J. Lundberg, J. (Joyce) |
author_facet |
Murphy, P.J. Lundberg, J. (Joyce) |
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 |
publishDate |
2009 |
url |
https://ir.library.carleton.ca/pub/4375 https://doi.org/10.1002/esp.1752 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Earth Surface Processes and Landforms vol. 34 no. 2, pp. 305-313 |
op_relation |
https://ir.library.carleton.ca/pub/4375 doi:10.1002/esp.1752 |
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_ |
1766027723675795456 |