A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada)
Two composite sedimentary sequences sampled in the ice-proximal (12CS) and ice-distal (02CS) areas of Coronation Fjord (Baffin Island, Nunavut, Canada) were investigated in order to reconstruct the effect of climate variability on 600 years of changes in sediment transfer from the eastern Penny Ice...
Published in: | Journal of Quaternary Science |
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Language: | French |
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2023
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Online Access: | https://semaphore.uqar.ca/id/eprint/2373/ https://semaphore.uqar.ca/id/eprint/2373/1/Maria-Emilia_Rodriguez-Cuicas_et_al_mai2023.pdf https://doi.org/10.1002/jqs.3531 |
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ftunivquebecar:oai:semaphore.uqar.ca:2373 2023-12-03T10:18:09+01:00 A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) Rodríguez-Cuicas, María-Emilia Montero-Serrano, Jean-Carlos St-Onge, Guillaume Normandeau, Alexandre 2023 application/pdf https://semaphore.uqar.ca/id/eprint/2373/ https://semaphore.uqar.ca/id/eprint/2373/1/Maria-Emilia_Rodriguez-Cuicas_et_al_mai2023.pdf https://doi.org/10.1002/jqs.3531 fr fre https://semaphore.uqar.ca/id/eprint/2373/1/Maria-Emilia_Rodriguez-Cuicas_et_al_mai2023.pdf Rodríguez-Cuicas, María-Emilia, Montero-Serrano, Jean-Carlos, St-Onge, Guillaume ORCID logoorcid:0000-0001-6958-4217 et Normandeau, Alexandre (2023). A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada). Journal of Quaternary Science . pp. 1-20. cc_by_nc_4 Article Évalué par les pairs 2023 ftunivquebecar https://doi.org/10.1002/jqs.3531 2023-11-05T00:10:52Z Two composite sedimentary sequences sampled in the ice-proximal (12CS) and ice-distal (02CS) areas of Coronation Fjord (Baffin Island, Nunavut, Canada) were investigated in order to reconstruct the effect of climate variability on 600 years of changes in sediment transfer from the eastern Penny Ice Cap (PIC). Detrital proxies, and physical and sedimentological analyses revealed that glacial meltwater discharges led to frequent rapidly deposited layers (RDLs) in ice-proximal settings. RDLs in ice-distal settings involved the sudden release of a large quantity of sediment-laden water during floods probably originating from adjacent fjords with large sandur deltas. Laminated sediments with ice-rafted debris throughout the Little Ice Age interval in the ice-proximal environment suggest that colder conditions promoted glacier growth, leading to successive episodes of turbid hyperpycnal meltwater plumes and iceberg calving in Coronation Fjord. Since 1850 ce, the accelerated Coronation retreat in response to modern warming has led to increased sedimentation rates, abrupt mineralogical and grain size proxy variations and more frequent RDLs. Similar trends between the detrital proxies of the ice-proximal core and Atlantic Multidecadal Oscillation record and Arctic surface air temperature suggest high connectivity between atmospheric and sea surface temperature variations and PIC dynamics over the last 600 years. -- Keywords : Baffin Island geochemistry glacier dynamics mineralogy Penny Ice Cap rapidly deposited layers sediment dynamics sedimentology. Article in Journal/Newspaper Arctic Baffin Island Baffin glacier* Ice cap Iceberg* Nunavut Penny Ice Cap Université du Québec à Rimouski (UQAR): Sémaphore Arctic Nunavut Baffin Island Canada Penny Ice Cap ENVELOPE(-66.214,-66.214,67.284,67.284) Journal of Quaternary Science |
institution |
Open Polar |
collection |
Université du Québec à Rimouski (UQAR): Sémaphore |
op_collection_id |
ftunivquebecar |
language |
French |
description |
Two composite sedimentary sequences sampled in the ice-proximal (12CS) and ice-distal (02CS) areas of Coronation Fjord (Baffin Island, Nunavut, Canada) were investigated in order to reconstruct the effect of climate variability on 600 years of changes in sediment transfer from the eastern Penny Ice Cap (PIC). Detrital proxies, and physical and sedimentological analyses revealed that glacial meltwater discharges led to frequent rapidly deposited layers (RDLs) in ice-proximal settings. RDLs in ice-distal settings involved the sudden release of a large quantity of sediment-laden water during floods probably originating from adjacent fjords with large sandur deltas. Laminated sediments with ice-rafted debris throughout the Little Ice Age interval in the ice-proximal environment suggest that colder conditions promoted glacier growth, leading to successive episodes of turbid hyperpycnal meltwater plumes and iceberg calving in Coronation Fjord. Since 1850 ce, the accelerated Coronation retreat in response to modern warming has led to increased sedimentation rates, abrupt mineralogical and grain size proxy variations and more frequent RDLs. Similar trends between the detrital proxies of the ice-proximal core and Atlantic Multidecadal Oscillation record and Arctic surface air temperature suggest high connectivity between atmospheric and sea surface temperature variations and PIC dynamics over the last 600 years. -- Keywords : Baffin Island geochemistry glacier dynamics mineralogy Penny Ice Cap rapidly deposited layers sediment dynamics sedimentology. |
format |
Article in Journal/Newspaper |
author |
Rodríguez-Cuicas, María-Emilia Montero-Serrano, Jean-Carlos St-Onge, Guillaume Normandeau, Alexandre |
spellingShingle |
Rodríguez-Cuicas, María-Emilia Montero-Serrano, Jean-Carlos St-Onge, Guillaume Normandeau, Alexandre A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
author_facet |
Rodríguez-Cuicas, María-Emilia Montero-Serrano, Jean-Carlos St-Onge, Guillaume Normandeau, Alexandre |
author_sort |
Rodríguez-Cuicas, María-Emilia |
title |
A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
title_short |
A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
title_full |
A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
title_fullStr |
A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
title_full_unstemmed |
A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada) |
title_sort |
600-year marine record associated with the dynamics of the eastern penny ice cap (baffin island, nunavut, canada) |
publishDate |
2023 |
url |
https://semaphore.uqar.ca/id/eprint/2373/ https://semaphore.uqar.ca/id/eprint/2373/1/Maria-Emilia_Rodriguez-Cuicas_et_al_mai2023.pdf https://doi.org/10.1002/jqs.3531 |
long_lat |
ENVELOPE(-66.214,-66.214,67.284,67.284) |
geographic |
Arctic Nunavut Baffin Island Canada Penny Ice Cap |
geographic_facet |
Arctic Nunavut Baffin Island Canada Penny Ice Cap |
genre |
Arctic Baffin Island Baffin glacier* Ice cap Iceberg* Nunavut Penny Ice Cap |
genre_facet |
Arctic Baffin Island Baffin glacier* Ice cap Iceberg* Nunavut Penny Ice Cap |
op_relation |
https://semaphore.uqar.ca/id/eprint/2373/1/Maria-Emilia_Rodriguez-Cuicas_et_al_mai2023.pdf Rodríguez-Cuicas, María-Emilia, Montero-Serrano, Jean-Carlos, St-Onge, Guillaume ORCID logoorcid:0000-0001-6958-4217 et Normandeau, Alexandre (2023). A 600-year marine record associated with the dynamics of the eastern Penny Ice Cap (Baffin Island, Nunavut, Canada). Journal of Quaternary Science . pp. 1-20. |
op_rights |
cc_by_nc_4 |
op_doi |
https://doi.org/10.1002/jqs.3531 |
container_title |
Journal of Quaternary Science |
_version_ |
1784265134342930432 |