Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York
The sedimentary sequence through the Hemingbrough Formation exposed at two sites in the central part of the Vale of York, south of the Escrick moraine ridge, is described and used to reconstruct the palaeoenvironmental history of Glacial Lake Humber. Interbedded wave ripples and laminated silts and...
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Online Access: | http://sro.sussex.ac.uk/id/eprint/11581/ https://doi.org/10.1016/j.pgeola.2009.09.001 |
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ftunivsussex:oai:sro.sussex.ac.uk:11581 2023-07-30T04:04:13+02:00 Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York Murton, Della K Pawley, Steven M Murton, Julian B 2009-01-01 http://sro.sussex.ac.uk/id/eprint/11581/ https://doi.org/10.1016/j.pgeola.2009.09.001 unknown Murton, Della K, Pawley, Steven M and Murton, Julian B (2009) Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York. Proceedings of the Geologists' Association, 120 (4). pp. 209-222. ISSN 0016-7878 Article PeerReviewed 2009 ftunivsussex https://doi.org/10.1016/j.pgeola.2009.09.001 2023-07-11T20:09:08Z The sedimentary sequence through the Hemingbrough Formation exposed at two sites in the central part of the Vale of York, south of the Escrick moraine ridge, is described and used to reconstruct the palaeoenvironmental history of Glacial Lake Humber. Interbedded wave ripples and laminated silts and clays at both sites indicate that Lake Humber was characterised by fluctuating water levels, often no deeper than wave base. Optically stimulated luminescence ages of 21.0 1.9, 21.9 2.0, and 24.1 2.2 kyr returned from two wave-rippled sandy beds within the glaciolacustrine sequence at Hemingbrough, c. 10 km south of the Escrick moraine ridge, provide the first direct chronological determination for the low-level phase of Lake Humber. As these beds are principally attributed to glacial meltwater emanating from the Vale of York ice lobe of the British Ice Sheet, when its margin was at or near the Escrick moraine ridge, this corroborates the interpretation that this ridge marks the LGM ice limit. Article in Journal/Newspaper Ice Sheet University of Sussex: Sussex Research Online Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Moraine Ridge ENVELOPE(168.050,168.050,-72.300,-72.300) Proceedings of the Geologists' Association 120 4 209 222 |
institution |
Open Polar |
collection |
University of Sussex: Sussex Research Online |
op_collection_id |
ftunivsussex |
language |
unknown |
description |
The sedimentary sequence through the Hemingbrough Formation exposed at two sites in the central part of the Vale of York, south of the Escrick moraine ridge, is described and used to reconstruct the palaeoenvironmental history of Glacial Lake Humber. Interbedded wave ripples and laminated silts and clays at both sites indicate that Lake Humber was characterised by fluctuating water levels, often no deeper than wave base. Optically stimulated luminescence ages of 21.0 1.9, 21.9 2.0, and 24.1 2.2 kyr returned from two wave-rippled sandy beds within the glaciolacustrine sequence at Hemingbrough, c. 10 km south of the Escrick moraine ridge, provide the first direct chronological determination for the low-level phase of Lake Humber. As these beds are principally attributed to glacial meltwater emanating from the Vale of York ice lobe of the British Ice Sheet, when its margin was at or near the Escrick moraine ridge, this corroborates the interpretation that this ridge marks the LGM ice limit. |
format |
Article in Journal/Newspaper |
author |
Murton, Della K Pawley, Steven M Murton, Julian B |
spellingShingle |
Murton, Della K Pawley, Steven M Murton, Julian B Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
author_facet |
Murton, Della K Pawley, Steven M Murton, Julian B |
author_sort |
Murton, Della K |
title |
Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
title_short |
Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
title_full |
Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
title_fullStr |
Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
title_full_unstemmed |
Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York |
title_sort |
sedimentology and luminescence ages of glacial lake humber deposits in the central vale of york |
publishDate |
2009 |
url |
http://sro.sussex.ac.uk/id/eprint/11581/ https://doi.org/10.1016/j.pgeola.2009.09.001 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(168.050,168.050,-72.300,-72.300) |
geographic |
Glacial Lake Moraine Ridge |
geographic_facet |
Glacial Lake Moraine Ridge |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
Murton, Della K, Pawley, Steven M and Murton, Julian B (2009) Sedimentology and luminescence ages of glacial Lake Humber deposits in the central Vale of York. Proceedings of the Geologists' Association, 120 (4). pp. 209-222. ISSN 0016-7878 |
op_doi |
https://doi.org/10.1016/j.pgeola.2009.09.001 |
container_title |
Proceedings of the Geologists' Association |
container_volume |
120 |
container_issue |
4 |
container_start_page |
209 |
op_container_end_page |
222 |
_version_ |
1772815473124048896 |