Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet
ABSTRACT Palaeoenvironmental change following deglaciation of the last British–Irish Ice Sheet on the continental shelf west of Ireland was investigated using multiproxy analyses of sediment and foraminifera data from nine sediment cores. Lithofacies associations record various depositional regimes...
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crwiley:10.1002/jqs.3208 2024-06-02T08:08:14+00:00 Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet Peters, Jared L. Benetti, Sara Dunlop, Paul Wheeler, Andrew J. International Association of Sedimentologists 2020 http://dx.doi.org/10.1002/jqs.3208 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3208 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3208 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3208 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 35, issue 5, page 609-624 ISSN 0267-8179 1099-1417 journal-article 2020 crwiley https://doi.org/10.1002/jqs.3208 2024-05-03T11:11:26Z ABSTRACT Palaeoenvironmental change following deglaciation of the last British–Irish Ice Sheet on the continental shelf west of Ireland was investigated using multiproxy analyses of sediment and foraminifera data from nine sediment cores. Lithofacies associations record various depositional regimes across the shelf, which evolve from subglacial to postglacial conditions. Census data provide the first characterisation of benthic foraminifera populations across the continental shelf and multivariate analyses reveal three distinct biotopes. Biomineralization within these biotopes is restricted to ≤21 200 cal a bp by four radiocarbon ages. The transition from glacial to postglacial benthic foraminifera populations near the shelf break marks the establishment of productive, nutrient‐rich, ice‐distal conditions at ~20 900 cal a bp these conditions may also mark the start of favourable conditions for postglacial cold‐water coral growth. Postglacial conditions on the inner shelf were not established until <14 500 cal a bp , suggesting glacial conditions west of Ireland may have persisted into the Bølling–Allerød Interstadial. Article in Journal/Newspaper Ice Sheet Wiley Online Library Journal of Quaternary Science 35 5 609 624 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Palaeoenvironmental change following deglaciation of the last British–Irish Ice Sheet on the continental shelf west of Ireland was investigated using multiproxy analyses of sediment and foraminifera data from nine sediment cores. Lithofacies associations record various depositional regimes across the shelf, which evolve from subglacial to postglacial conditions. Census data provide the first characterisation of benthic foraminifera populations across the continental shelf and multivariate analyses reveal three distinct biotopes. Biomineralization within these biotopes is restricted to ≤21 200 cal a bp by four radiocarbon ages. The transition from glacial to postglacial benthic foraminifera populations near the shelf break marks the establishment of productive, nutrient‐rich, ice‐distal conditions at ~20 900 cal a bp these conditions may also mark the start of favourable conditions for postglacial cold‐water coral growth. Postglacial conditions on the inner shelf were not established until <14 500 cal a bp , suggesting glacial conditions west of Ireland may have persisted into the Bølling–Allerød Interstadial. |
author2 |
International Association of Sedimentologists |
format |
Article in Journal/Newspaper |
author |
Peters, Jared L. Benetti, Sara Dunlop, Paul Wheeler, Andrew J. |
spellingShingle |
Peters, Jared L. Benetti, Sara Dunlop, Paul Wheeler, Andrew J. Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
author_facet |
Peters, Jared L. Benetti, Sara Dunlop, Paul Wheeler, Andrew J. |
author_sort |
Peters, Jared L. |
title |
Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
title_short |
Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
title_full |
Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
title_fullStr |
Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
title_full_unstemmed |
Sedimentary and foraminiferal records of Late Quaternary environmental change west of Ireland and implications for the last British–Irish Ice Sheet |
title_sort |
sedimentary and foraminiferal records of late quaternary environmental change west of ireland and implications for the last british–irish ice sheet |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/jqs.3208 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3208 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3208 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3208 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Journal of Quaternary Science volume 35, issue 5, page 609-624 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.3208 |
container_title |
Journal of Quaternary Science |
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35 |
container_issue |
5 |
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609 |
op_container_end_page |
624 |
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1800753426555994112 |