Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ...
Reconstructing former ice sheet history and glaciogenic sediment fluxes surrounding Baffin Bay during and since the Last Glacial Maximum (LGM) is a major scientific challenge. Here, a new multi-proxy analysis of sediments from a central Baffin Bay (BB) sediment core reveals two dominant sediment/dis...
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Online Access: | https://dx.doi.org/10.48350/185160 https://boris.unibe.ch/185160/ |
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ftdatacite:10.48350/185160 2024-09-30T14:32:38+00:00 Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... Ownsworth, Emma Selby, David Lloyd, Jeremy Knutz, Paul Szidat, Sönke Andrews, John Ó Cofaigh, Colm 2023 https://dx.doi.org/10.48350/185160 https://boris.unibe.ch/185160/ unknown Elsevier https://dx.doi.org/10.1016/j.quascirev.2023.108082 open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 570 Life sciences; biology 540 Chemistry Text ScholarlyArticle article-journal journal article 2023 ftdatacite https://doi.org/10.48350/18516010.1016/j.quascirev.2023.108082 2024-09-02T10:17:31Z Reconstructing former ice sheet history and glaciogenic sediment fluxes surrounding Baffin Bay during and since the Last Glacial Maximum (LGM) is a major scientific challenge. Here, a new multi-proxy analysis of sediments from a central Baffin Bay (BB) sediment core reveals two dominant sediment/discharge sources: 1) a detrital carbonate (BBDC; dolomite-rich) source that represents increased discharge from the NE Laurentide Ice Sheet (LIS) and southern Innuitian Ice Sheet (IIS), and 2) a radiogenic, felsic provenance likely from a west Greenland Ice Sheet (GIS) source, although a contribution from the Baffin Island LIS cannot be ruled out. By utilising a new method for radiocarbon calibration in high latitude polar environments we provide updated age constraints on BBDC1 (14.1e13 cal ka BP) and BBDC0 (12.0e10.9 cal ka BP). This coupled with our sediment analysis shows the BBDC layers to be coincident with the Bølling-Allerød (BBDC1) and the recovery from the Younger Dryas (BBDC0). The timing of BBDC1 also ... Text Baffin Bay Baffin Bay Baffin Island Baffin Greenland Ice Sheet DataCite Baffin Bay Baffin Island Greenland |
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570 Life sciences; biology 540 Chemistry |
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570 Life sciences; biology 540 Chemistry Ownsworth, Emma Selby, David Lloyd, Jeremy Knutz, Paul Szidat, Sönke Andrews, John Ó Cofaigh, Colm Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
topic_facet |
570 Life sciences; biology 540 Chemistry |
description |
Reconstructing former ice sheet history and glaciogenic sediment fluxes surrounding Baffin Bay during and since the Last Glacial Maximum (LGM) is a major scientific challenge. Here, a new multi-proxy analysis of sediments from a central Baffin Bay (BB) sediment core reveals two dominant sediment/discharge sources: 1) a detrital carbonate (BBDC; dolomite-rich) source that represents increased discharge from the NE Laurentide Ice Sheet (LIS) and southern Innuitian Ice Sheet (IIS), and 2) a radiogenic, felsic provenance likely from a west Greenland Ice Sheet (GIS) source, although a contribution from the Baffin Island LIS cannot be ruled out. By utilising a new method for radiocarbon calibration in high latitude polar environments we provide updated age constraints on BBDC1 (14.1e13 cal ka BP) and BBDC0 (12.0e10.9 cal ka BP). This coupled with our sediment analysis shows the BBDC layers to be coincident with the Bølling-Allerød (BBDC1) and the recovery from the Younger Dryas (BBDC0). The timing of BBDC1 also ... |
format |
Text |
author |
Ownsworth, Emma Selby, David Lloyd, Jeremy Knutz, Paul Szidat, Sönke Andrews, John Ó Cofaigh, Colm |
author_facet |
Ownsworth, Emma Selby, David Lloyd, Jeremy Knutz, Paul Szidat, Sönke Andrews, John Ó Cofaigh, Colm |
author_sort |
Ownsworth, Emma |
title |
Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
title_short |
Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
title_full |
Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
title_fullStr |
Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
title_full_unstemmed |
Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model ... |
title_sort |
tracking sediment delivery to central baffin bay during the past 40 kyrs: insights from a multiproxy approach and new age model ... |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://dx.doi.org/10.48350/185160 https://boris.unibe.ch/185160/ |
geographic |
Baffin Bay Baffin Island Greenland |
geographic_facet |
Baffin Bay Baffin Island Greenland |
genre |
Baffin Bay Baffin Bay Baffin Island Baffin Greenland Ice Sheet |
genre_facet |
Baffin Bay Baffin Bay Baffin Island Baffin Greenland Ice Sheet |
op_relation |
https://dx.doi.org/10.1016/j.quascirev.2023.108082 |
op_rights |
open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/18516010.1016/j.quascirev.2023.108082 |
_version_ |
1811636739661365248 |