Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties
International audience The sedimentological, geochemical, physical and magnetic properties of 40 surface and basal sediment samples of box cores collected throughout the Canadian Arctic Archipelago (CAA) from the Canadian Beaufort Shelf to Lancaster Sound were analyzed to determine the sedimentary p...
Published in: | Geochemistry, Geophysics, Geosystems |
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Main Authors: | , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290/document https://hal-insu.archives-ouvertes.fr/insu-03661290/file/Geochem%20Geophys%20Geosyst%20-%202021%20-%20Leta%20ef%20-%20Sedimentary%20Processes%20Within%20the%20Canadian%20Arctic%20Archipelago%20Relationships.pdf https://doi.org/10.1029/2021GC009719 |
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ftccsdartic:oai:HAL:insu-03661290v1 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
sedimentology environmental magnetism geochemistry sedimentary processes [SDU]Sciences of the Universe [physics] |
spellingShingle |
sedimentology environmental magnetism geochemistry sedimentary processes [SDU]Sciences of the Universe [physics] Letaïef, Sarah Montero-Serrano, Jean-Carlos St-Onge, Guillaume Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
topic_facet |
sedimentology environmental magnetism geochemistry sedimentary processes [SDU]Sciences of the Universe [physics] |
description |
International audience The sedimentological, geochemical, physical and magnetic properties of 40 surface and basal sediment samples of box cores collected throughout the Canadian Arctic Archipelago (CAA) from the Canadian Beaufort Shelf to Lancaster Sound were analyzed to determine the sedimentary processes that operate within the CAA during the pre- and post-industrial periods (i.e., before and after 1900 Common Era or CE). In addition, the chronology of seven selected regional cores was established using 210 Pb measurements, where the base is dated between 1550 and 1820 CE. These cores provide an opportunity to robustly compare post-1900 sedimentary conditions with those of the colder Little Ice Age period (LIA; ∼1500-1900 CE). The different properties combined with multivariate statistical analyses result in the identification of three regional provinces with distinct sedimentary characteristics: (a) the West province (Mackenzie Shelf/Slope, west Banks Island and M'Clure Strait) typified by detrital associations (Fe-Rb-Ti-Zn), high organic matter inputs, dominance of magnetite and low-coercivity minerals and high aluminosilicate contents; (b) the Intermediate Zone (Amundsen and Coronation gulfs) distinguished by Si-Al-Zr-Sr-K associations, Mn oxyhydroxides precipitation, constant high magnetic grain concentrations and a mixture between marine and terrigenous organic matter; and (c) the East Province (Queen Maud Gulf, Victoria and Barrow straits, and Lancaster and Eclipse sounds) described by high detrital carbonate inputs, marine organic matter, a dominance of high-coercivity minerals and high magnetic concentrations in pre-industrial samples. Our results confirm that the pre- and post-industrial sedimentary dynamics are controlled by sediment supplies from the river discharges in the West and Intermediate provinces, whereas the East province is more influenced by sea ice and coastal erosion. Basal sediment samples from the seven 210 Pb-dated cores suggest an intensification of the Mackenzie, Coppermine, ... |
author2 |
Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Letaïef, Sarah Montero-Serrano, Jean-Carlos St-Onge, Guillaume |
author_facet |
Letaïef, Sarah Montero-Serrano, Jean-Carlos St-Onge, Guillaume |
author_sort |
Letaïef, Sarah |
title |
Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
title_short |
Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
title_full |
Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
title_fullStr |
Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
title_full_unstemmed |
Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties |
title_sort |
sedimentary processes within the canadian arctic archipelago: relationships among sedimentological, geochemical, and magnetic sediment properties |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290/document https://hal-insu.archives-ouvertes.fr/insu-03661290/file/Geochem%20Geophys%20Geosyst%20-%202021%20-%20Leta%20ef%20-%20Sedimentary%20Processes%20Within%20the%20Canadian%20Arctic%20Archipelago%20Relationships.pdf https://doi.org/10.1029/2021GC009719 |
long_lat |
ENVELOPE(-83.999,-83.999,74.218,74.218) ENVELOPE(-142.500,-142.500,70.000,70.000) ENVELOPE(-115.999,-115.999,74.498,74.498) ENVELOPE(-102.002,-102.002,68.334,68.334) |
geographic |
Arctic Canadian Arctic Archipelago Lancaster Sound Beaufort Shelf M'Clure Strait Queen Maud Gulf |
geographic_facet |
Arctic Canadian Arctic Archipelago Lancaster Sound Beaufort Shelf M'Clure Strait Queen Maud Gulf |
genre |
Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Lancaster Sound M'Clure Strait Mackenzie Shelf Queen Maud Gulf Sea ice |
genre_facet |
Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Lancaster Sound M'Clure Strait Mackenzie Shelf Queen Maud Gulf Sea ice |
op_source |
ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal-insu.archives-ouvertes.fr/insu-03661290 Geochemistry, Geophysics, Geosystems, 2021, 22, ⟨10.1029/2021GC009719⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GC009719 insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290/document https://hal-insu.archives-ouvertes.fr/insu-03661290/file/Geochem%20Geophys%20Geosyst%20-%202021%20-%20Leta%20ef%20-%20Sedimentary%20Processes%20Within%20the%20Canadian%20Arctic%20Archipelago%20Relationships.pdf BIBCODE: 2021GGG.2209719L doi:10.1029/2021GC009719 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2021GC009719 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
22 |
container_issue |
7 |
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1772810734425604096 |
spelling |
ftccsdartic:oai:HAL:insu-03661290v1 2023-07-30T04:00:09+02:00 Sedimentary Processes Within the Canadian Arctic Archipelago: Relationships Among Sedimentological, Geochemical, and Magnetic Sediment Properties Letaïef, Sarah Montero-Serrano, Jean-Carlos St-Onge, Guillaume Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 2021 https://hal-insu.archives-ouvertes.fr/insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290/document https://hal-insu.archives-ouvertes.fr/insu-03661290/file/Geochem%20Geophys%20Geosyst%20-%202021%20-%20Leta%20ef%20-%20Sedimentary%20Processes%20Within%20the%20Canadian%20Arctic%20Archipelago%20Relationships.pdf https://doi.org/10.1029/2021GC009719 en eng HAL CCSD AGU and the Geochemical Society info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GC009719 insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290 https://hal-insu.archives-ouvertes.fr/insu-03661290/document https://hal-insu.archives-ouvertes.fr/insu-03661290/file/Geochem%20Geophys%20Geosyst%20-%202021%20-%20Leta%20ef%20-%20Sedimentary%20Processes%20Within%20the%20Canadian%20Arctic%20Archipelago%20Relationships.pdf BIBCODE: 2021GGG.2209719L doi:10.1029/2021GC009719 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal-insu.archives-ouvertes.fr/insu-03661290 Geochemistry, Geophysics, Geosystems, 2021, 22, ⟨10.1029/2021GC009719⟩ sedimentology environmental magnetism geochemistry sedimentary processes [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.1029/2021GC009719 2023-07-08T23:13:58Z International audience The sedimentological, geochemical, physical and magnetic properties of 40 surface and basal sediment samples of box cores collected throughout the Canadian Arctic Archipelago (CAA) from the Canadian Beaufort Shelf to Lancaster Sound were analyzed to determine the sedimentary processes that operate within the CAA during the pre- and post-industrial periods (i.e., before and after 1900 Common Era or CE). In addition, the chronology of seven selected regional cores was established using 210 Pb measurements, where the base is dated between 1550 and 1820 CE. These cores provide an opportunity to robustly compare post-1900 sedimentary conditions with those of the colder Little Ice Age period (LIA; ∼1500-1900 CE). The different properties combined with multivariate statistical analyses result in the identification of three regional provinces with distinct sedimentary characteristics: (a) the West province (Mackenzie Shelf/Slope, west Banks Island and M'Clure Strait) typified by detrital associations (Fe-Rb-Ti-Zn), high organic matter inputs, dominance of magnetite and low-coercivity minerals and high aluminosilicate contents; (b) the Intermediate Zone (Amundsen and Coronation gulfs) distinguished by Si-Al-Zr-Sr-K associations, Mn oxyhydroxides precipitation, constant high magnetic grain concentrations and a mixture between marine and terrigenous organic matter; and (c) the East Province (Queen Maud Gulf, Victoria and Barrow straits, and Lancaster and Eclipse sounds) described by high detrital carbonate inputs, marine organic matter, a dominance of high-coercivity minerals and high magnetic concentrations in pre-industrial samples. Our results confirm that the pre- and post-industrial sedimentary dynamics are controlled by sediment supplies from the river discharges in the West and Intermediate provinces, whereas the East province is more influenced by sea ice and coastal erosion. Basal sediment samples from the seven 210 Pb-dated cores suggest an intensification of the Mackenzie, Coppermine, ... Article in Journal/Newspaper Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Lancaster Sound M'Clure Strait Mackenzie Shelf Queen Maud Gulf Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Canadian Arctic Archipelago Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Beaufort Shelf ENVELOPE(-142.500,-142.500,70.000,70.000) M'Clure Strait ENVELOPE(-115.999,-115.999,74.498,74.498) Queen Maud Gulf ENVELOPE(-102.002,-102.002,68.334,68.334) Geochemistry, Geophysics, Geosystems 22 7 |