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 (δ 18 O and radioca...
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Online Access: | http://dx.doi.org/10.1111/bor.12346 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12346 |
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crwiley:10.1111/bor.12346 2024-06-02T08:03:49+00:00 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 ArcticNet Natural Sciences and Engineering Research Council of Canada 2018 http://dx.doi.org/10.1111/bor.12346 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12346 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 48, issue 1, page 147-165 ISSN 0300-9483 1502-3885 journal-article 2018 crwiley https://doi.org/10.1111/bor.12346 2024-05-03T11:20:36Z 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 (δ 18 O 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 ( AMD 14‐204, AMD 14‐210 and AMD 14‐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 ( AMD 14‐204 and AMD 14‐210) and to propose an original palaeomagnetic record for the previously 14 C‐dated core AMD 14‐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 Wiley Online Library Baffin Bay Greenland Boreas 48 1 147 165 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
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 (δ 18 O 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 ( AMD 14‐204, AMD 14‐210 and AMD 14‐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 ( AMD 14‐204 and AMD 14‐210) and to propose an original palaeomagnetic record for the previously 14 C‐dated core AMD 14‐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. |
author2 |
ArcticNet Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Caron, Myriam St‐Onge, Guillaume Montero‐Serrano, Jean‐Carlos Rochon, André Georgiadis, Eleanor Giraudeau, Jacques Massé, Guillaume |
spellingShingle |
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 |
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 |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/bor.12346 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12346 |
geographic |
Baffin Bay Greenland |
geographic_facet |
Baffin Bay Greenland |
genre |
Baffin Bay Baffin Bay Baffin Greenland |
genre_facet |
Baffin Bay Baffin Bay Baffin Greenland |
op_source |
Boreas volume 48, issue 1, page 147-165 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12346 |
container_title |
Boreas |
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48 |
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1 |
container_start_page |
147 |
op_container_end_page |
165 |
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1800748424845328384 |