Holocene chronostratigraphy of northeastern Baffin Bay based on radiocarbon and palaeomagnetic data
International audience 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 meth...
Published in: | Boreas |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
|
Subjects: | |
Online Access: | https://hal.science/hal-02411243 https://hal.science/hal-02411243/document https://hal.science/hal-02411243/file/Caron_et_al-2018-Boreas-2-1.pdf https://doi.org/10.1111/bor.12346 |
id |
ftecolephe:oai:HAL:hal-02411243v1 |
---|---|
record_format |
openpolar |
spelling |
ftecolephe:oai:HAL:hal-02411243v1 2024-05-19T07:37:55+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 Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Petroleum and Environmental Geochemistry Group Plymouth University 2019-01 https://hal.science/hal-02411243 https://hal.science/hal-02411243/document https://hal.science/hal-02411243/file/Caron_et_al-2018-Boreas-2-1.pdf https://doi.org/10.1111/bor.12346 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/bor.12346 hal-02411243 https://hal.science/hal-02411243 https://hal.science/hal-02411243/document https://hal.science/hal-02411243/file/Caron_et_al-2018-Boreas-2-1.pdf doi:10.1111/bor.12346 info:eu-repo/semantics/OpenAccess ISSN: 0300-9483 Boreas https://hal.science/hal-02411243 Boreas, 2019, 48 (1), pp.147-165. ⟨10.1111/bor.12346⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2019 ftecolephe https://doi.org/10.1111/bor.12346 2024-04-25T01:36:03Z International audience 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 (d 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 (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 14 C-dated core AMD14-Kane2B that covers most of the Holocene. Overall, this new chronostratigraphy allowed improvement of the timing of the main palaeoenvi-ronmental changes that occurred in this area during the Holocene. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Greenland EPHE (Ecole pratique des hautes études, Paris): HAL Boreas 48 1 147 165 |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDE]Environmental Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDE]Environmental Sciences 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 |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDE]Environmental Sciences |
description |
International audience 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 (d 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 (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 14 C-dated core AMD14-Kane2B that covers most of the Holocene. Overall, this new chronostratigraphy allowed improvement of the timing of the main palaeoenvi-ronmental changes that occurred in this area during the Holocene. |
author2 |
Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Petroleum and Environmental Geochemistry Group Plymouth University |
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 |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02411243 https://hal.science/hal-02411243/document https://hal.science/hal-02411243/file/Caron_et_al-2018-Boreas-2-1.pdf https://doi.org/10.1111/bor.12346 |
genre |
Baffin Bay Baffin Bay Baffin Greenland |
genre_facet |
Baffin Bay Baffin Bay Baffin Greenland |
op_source |
ISSN: 0300-9483 Boreas https://hal.science/hal-02411243 Boreas, 2019, 48 (1), pp.147-165. ⟨10.1111/bor.12346⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/bor.12346 hal-02411243 https://hal.science/hal-02411243 https://hal.science/hal-02411243/document https://hal.science/hal-02411243/file/Caron_et_al-2018-Boreas-2-1.pdf doi:10.1111/bor.12346 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1111/bor.12346 |
container_title |
Boreas |
container_volume |
48 |
container_issue |
1 |
container_start_page |
147 |
op_container_end_page |
165 |
_version_ |
1799477307208892416 |