British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years
Sediment core MD04-2822 from the Rockall Trough, northeast Atlantic, provides lithological evidence for the expansion of the British Ice Sheet (BIS) onto the Hebridean margin during both the penultimate (Marine Isotope Stage (MIS) 6/Wolstonian/Saalian) and last glaciations (Devensian/Weichselian). A...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Wiley-Blackwell
2010
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/9636/ http://www3.interscience.wiley.com/journal/2507/home |
id |
ftnerc:oai:nora.nerc.ac.uk:9636 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:9636 2023-05-15T14:05:16+02:00 British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years Hibbert, Fiona D. Austin, Wiliam E.N. Leng, Melanie J. Gatliff, Robert W. 2010 http://nora.nerc.ac.uk/id/eprint/9636/ http://www3.interscience.wiley.com/journal/2507/home unknown Wiley-Blackwell Hibbert, Fiona D.; Austin, Wiliam E.N.; Leng, Melanie J. orcid:0000-0003-1115-5166 Gatliff, Robert W. 2010 British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years. Journal of Quaternary Science, 25 (4). 461-482. https://doi.org/10.1002/jqs.1331 <https://doi.org/10.1002/jqs.1331> Earth Sciences Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1002/jqs.1331 2023-02-04T19:26:14Z Sediment core MD04-2822 from the Rockall Trough, northeast Atlantic, provides lithological evidence for the expansion of the British Ice Sheet (BIS) onto the Hebridean margin during both the penultimate (Marine Isotope Stage (MIS) 6/Wolstonian/Saalian) and last glaciations (Devensian/Weichselian). A composite chronology is constructed using: (i) the benthic foraminiferal oxygen isotope record, matched to an orbitally tuned stacked record of global ice volume (SPECMAP); (ii) the synchronisation of the planktonic foraminiferal (Neogloboquadrina pachyderma (sinistral)) and ITRAX XRF Ca records to the Greenland ice core (NGRIP) back to ca. 123 ka; and (iii) the synchronisation of the same N. pachyderma (sinistral)) and ITRAX XRF Ca records to the atmospheric methane record of the Antarctic ice core (EPICA Dome C) beyond 123 ka. The first offshore evidence for the expansion of the last BIS within MIS 4 is presented, suggesting extensive glaciation of northwestern Britain during the Devensian/Weichselian as early as 70 ka. The proximity of this long sediment core to the glaciated margin of northwestern Scotland makes it ideal to capture the ice-rafted debris (IRD) signal of the BIS for the last 175 ka, via a continuous flux record of IRD. Article in Journal/Newspaper Antarc* Antarctic EPICA Greenland Greenland ice core ice core Ice Sheet Neogloboquadrina pachyderma NGRIP North Atlantic Northeast Atlantic Natural Environment Research Council: NERC Open Research Archive Antarctic Greenland Rockall Trough ENVELOPE(-15.036,-15.036,53.825,53.825) The Antarctic Journal of Quaternary Science 25 4 461 482 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Hibbert, Fiona D. Austin, Wiliam E.N. Leng, Melanie J. Gatliff, Robert W. British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
topic_facet |
Earth Sciences |
description |
Sediment core MD04-2822 from the Rockall Trough, northeast Atlantic, provides lithological evidence for the expansion of the British Ice Sheet (BIS) onto the Hebridean margin during both the penultimate (Marine Isotope Stage (MIS) 6/Wolstonian/Saalian) and last glaciations (Devensian/Weichselian). A composite chronology is constructed using: (i) the benthic foraminiferal oxygen isotope record, matched to an orbitally tuned stacked record of global ice volume (SPECMAP); (ii) the synchronisation of the planktonic foraminiferal (Neogloboquadrina pachyderma (sinistral)) and ITRAX XRF Ca records to the Greenland ice core (NGRIP) back to ca. 123 ka; and (iii) the synchronisation of the same N. pachyderma (sinistral)) and ITRAX XRF Ca records to the atmospheric methane record of the Antarctic ice core (EPICA Dome C) beyond 123 ka. The first offshore evidence for the expansion of the last BIS within MIS 4 is presented, suggesting extensive glaciation of northwestern Britain during the Devensian/Weichselian as early as 70 ka. The proximity of this long sediment core to the glaciated margin of northwestern Scotland makes it ideal to capture the ice-rafted debris (IRD) signal of the BIS for the last 175 ka, via a continuous flux record of IRD. |
format |
Article in Journal/Newspaper |
author |
Hibbert, Fiona D. Austin, Wiliam E.N. Leng, Melanie J. Gatliff, Robert W. |
author_facet |
Hibbert, Fiona D. Austin, Wiliam E.N. Leng, Melanie J. Gatliff, Robert W. |
author_sort |
Hibbert, Fiona D. |
title |
British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
title_short |
British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
title_full |
British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
title_fullStr |
British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
title_full_unstemmed |
British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years |
title_sort |
british ice sheet dynamics inferred from north atlantic ice-rafted debris records spanning the last 175,000 years |
publisher |
Wiley-Blackwell |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/9636/ http://www3.interscience.wiley.com/journal/2507/home |
long_lat |
ENVELOPE(-15.036,-15.036,53.825,53.825) |
geographic |
Antarctic Greenland Rockall Trough The Antarctic |
geographic_facet |
Antarctic Greenland Rockall Trough The Antarctic |
genre |
Antarc* Antarctic EPICA Greenland Greenland ice core ice core Ice Sheet Neogloboquadrina pachyderma NGRIP North Atlantic Northeast Atlantic |
genre_facet |
Antarc* Antarctic EPICA Greenland Greenland ice core ice core Ice Sheet Neogloboquadrina pachyderma NGRIP North Atlantic Northeast Atlantic |
op_relation |
Hibbert, Fiona D.; Austin, Wiliam E.N.; Leng, Melanie J. orcid:0000-0003-1115-5166 Gatliff, Robert W. 2010 British ice sheet dynamics inferred from North Atlantic ice-rafted debris records spanning the last 175,000 years. Journal of Quaternary Science, 25 (4). 461-482. https://doi.org/10.1002/jqs.1331 <https://doi.org/10.1002/jqs.1331> |
op_doi |
https://doi.org/10.1002/jqs.1331 |
container_title |
Journal of Quaternary Science |
container_volume |
25 |
container_issue |
4 |
container_start_page |
461 |
op_container_end_page |
482 |
_version_ |
1766277088177815552 |