Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data
The northeastern Baffin Bay continental margin, which experiences high sediment accumulation rates, is an excellent location to study Holocene sedimentary variations. However, it is often difficult to obtain reliable chronologies of the sediment archives using traditional methods (δ18O and radiocarb...
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ftunivquebecar:oai:semaphore.uqar.ca:1554 2023-11-05T03:40:38+01:00 Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data Caron, Myriam St-Onge, Guillaume Montero-Serrano, Jean-Carlos Rochon, André Georgiadis, Eleanor Giraudeau, Jacques Massé, Guillaume 2019-01 application/pdf https://semaphore.uqar.ca/id/eprint/1554/ https://semaphore.uqar.ca/id/eprint/1554/1/Myriam_Caron_et_al_janvier2019.pdf https://doi.org/10.1111/bor.12346 fr fre https://semaphore.uqar.ca/id/eprint/1554/1/Myriam_Caron_et_al_janvier2019.pdf Caron, Myriam, St-Onge, Guillaume orcid:0000-0001-6958-4217 , Montero-Serrano, Jean-Carlos orcid:0000-0001-7896-6284 , Rochon, André, Georgiadis, Eleanor, Giraudeau, Jacques et Massé, Guillaume (2019). Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data. Boreas, 48 (1). pp. 147-165. Baie Baffin Nord-est Sediment Chronostratigraphie Holocene Paleomagnetisme Datation Carbone 14 Article Évalué par les pairs 2019 ftunivquebecar https://doi.org/10.1111/bor.12346 2023-10-07T23:10:37Z The northeastern Baffin Bay continental margin, which experiences high sediment accumulation rates, is an excellent location to study Holocene sedimentary variations. However, it is often difficult to obtain reliable chronologies of the sediment archives using traditional methods (δ18O and radiocarbon) due to specific oceanographic conditions (e.g. corrosive bottom waters). Here we propose a chronostratigraphy of three cores collected on the northwestern Greenland margin (AMD14‐204, AMD14‐210 and AMD14‐Kane2B) based on a combination of radiocarbon dating and palaeomagnetic records. Geophysical properties of discrete samples were used to verify the reliability of the palaeomagnetic records. Palaeomagnetic analyses indicate a strong and stable natural remanent magnetization carried by low coercivity ferrimagnetic minerals (magnetite) in the pseudo‐single domain grain size range. Correlation of the full palaeomagnetic vector (inclination, declination, and relative palaeointensity) was used to establish a reliable chronostratigraphical framework for two of the cores (AMD14‐204 and AMD14‐210) and to propose an original palaeomagnetic record for the previously 14C‐dated core AMD14‐Kane2B that covers most of the Holocene. Overall, this new chronostratigraphy allowed improvement of the timing of the main palaeoenvironmental changes that occurred in this area during the Holocene. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Greenland Université du Québec à Rimouski (UQAR): Sémaphore Boreas 48 1 147 165 |
institution |
Open Polar |
collection |
Université du Québec à Rimouski (UQAR): Sémaphore |
op_collection_id |
ftunivquebecar |
language |
French |
topic |
Baie Baffin Nord-est Sediment Chronostratigraphie Holocene Paleomagnetisme Datation Carbone 14 |
spellingShingle |
Baie Baffin Nord-est Sediment Chronostratigraphie Holocene Paleomagnetisme Datation Carbone 14 Caron, Myriam St-Onge, Guillaume Montero-Serrano, Jean-Carlos Rochon, André Georgiadis, Eleanor Giraudeau, Jacques Massé, Guillaume Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
topic_facet |
Baie Baffin Nord-est Sediment Chronostratigraphie Holocene Paleomagnetisme Datation Carbone 14 |
description |
The northeastern Baffin Bay continental margin, which experiences high sediment accumulation rates, is an excellent location to study Holocene sedimentary variations. However, it is often difficult to obtain reliable chronologies of the sediment archives using traditional methods (δ18O and radiocarbon) due to specific oceanographic conditions (e.g. corrosive bottom waters). Here we propose a chronostratigraphy of three cores collected on the northwestern Greenland margin (AMD14‐204, AMD14‐210 and AMD14‐Kane2B) based on a combination of radiocarbon dating and palaeomagnetic records. Geophysical properties of discrete samples were used to verify the reliability of the palaeomagnetic records. Palaeomagnetic analyses indicate a strong and stable natural remanent magnetization carried by low coercivity ferrimagnetic minerals (magnetite) in the pseudo‐single domain grain size range. Correlation of the full palaeomagnetic vector (inclination, declination, and relative palaeointensity) was used to establish a reliable chronostratigraphical framework for two of the cores (AMD14‐204 and AMD14‐210) and to propose an original palaeomagnetic record for the previously 14C‐dated core AMD14‐Kane2B that covers most of the Holocene. Overall, this new chronostratigraphy allowed improvement of the timing of the main palaeoenvironmental changes that occurred in this area during the Holocene. |
format |
Article in Journal/Newspaper |
author |
Caron, Myriam St-Onge, Guillaume Montero-Serrano, Jean-Carlos Rochon, André Georgiadis, Eleanor Giraudeau, Jacques Massé, Guillaume |
author_facet |
Caron, Myriam St-Onge, Guillaume Montero-Serrano, Jean-Carlos Rochon, André Georgiadis, Eleanor Giraudeau, Jacques Massé, Guillaume |
author_sort |
Caron, Myriam |
title |
Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
title_short |
Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
title_full |
Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
title_fullStr |
Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
title_full_unstemmed |
Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data |
title_sort |
holocene chronostratigraphy of northeastern baffin bay based on radiocarbon and palaeomagnetic data |
publishDate |
2019 |
url |
https://semaphore.uqar.ca/id/eprint/1554/ https://semaphore.uqar.ca/id/eprint/1554/1/Myriam_Caron_et_al_janvier2019.pdf https://doi.org/10.1111/bor.12346 |
genre |
Baffin Bay Baffin Bay Baffin Greenland |
genre_facet |
Baffin Bay Baffin Bay Baffin Greenland |
op_relation |
https://semaphore.uqar.ca/id/eprint/1554/1/Myriam_Caron_et_al_janvier2019.pdf Caron, Myriam, St-Onge, Guillaume orcid:0000-0001-6958-4217 , Montero-Serrano, Jean-Carlos orcid:0000-0001-7896-6284 , Rochon, André, Georgiadis, Eleanor, Giraudeau, Jacques et Massé, Guillaume (2019). Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data. Boreas, 48 (1). pp. 147-165. |
op_doi |
https://doi.org/10.1111/bor.12346 |
container_title |
Boreas |
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48 |
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1 |
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147 |
op_container_end_page |
165 |
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1781696808258371584 |