Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals
Abstract The Southern Ocean (SO) plays a fundamental role in global climate due to the presence of the intense eastward‐flowing Antarctic Circumpolar Current (ACC), one of the most important ocean current systems. The configuration of the frontal systems of the ACC is controlled by the orbital‐ and...
Published in: | Journal of Geophysical Research: Solid Earth |
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Main Authors: | , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2023
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Online Access: | https://hal.science/hal-04311970 https://hal.science/hal-04311970/document https://hal.science/hal-04311970/file/JGR%20Solid%20Earth%20-%202023%20-%20Liu%20-%20Glacial%E2%80%90Interglacial%20Circulation%20and%20Climatic%20Changes%20in%20the%20South%20Indian%20Ocean%20Kerguelen.pdf https://doi.org/10.1029/2023JB027741 |
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ftceafr:oai:HAL:hal-04311970v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Liu, Yan Kissel, Catherine Mazaud, Alain Pan, Yongxin Li, Jinhua Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
Abstract The Southern Ocean (SO) plays a fundamental role in global climate due to the presence of the intense eastward‐flowing Antarctic Circumpolar Current (ACC), one of the most important ocean current systems. The configuration of the frontal systems of the ACC is controlled by the orbital‐ and millennial‐scale variations of the Southern Hemisphere westerly winds (SHWW) and the SO upwelling. However, the reconstruction of paleoclimate and paleocurrent in the SO remains controversial possibly because of the complex interpretation of paleo‐proxies and the regional variations. Here, we present results from rock magnetic measurements and electron microscopic analyses on marine core MD11‐3353 over the past 150 Kyr, which is located in the Polar Front Zone, west of the Kerguelen Plateau. Our data sets indicate that magnetic mineral assemblages in the core are dominated by detrital magnetic minerals mixed with biogenic magnetic minerals (i.e., magnetofossils formed by magnetotactic bacteria) during the interglacial periods. Changes in the detrital magnetic mineral content indicate a strong modulation of the ACC intensity and the SHWW stress at the orbital scale over the last climatic cycle with an enhanced activity during the glacial periods. The increase in magnetofossils content during the interglacial periods indicates an enhanced nutrient supply from the SO upwelling resulting from the southward migration of the Antarctic Polar Front. Our results suggest that the variations of concentration and assemblage of magnetic minerals can be used as faithful proxies for reconstructing ocean circulation and upwelling changes in the South Indian Ocean over the past 150 Kyr. |
author2 |
Chinese Academy of Sciences Beijing (CAS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Climat et Magnétisme (CLIMAG) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Liu, Yan Kissel, Catherine Mazaud, Alain Pan, Yongxin Li, Jinhua |
author_facet |
Liu, Yan Kissel, Catherine Mazaud, Alain Pan, Yongxin Li, Jinhua |
author_sort |
Liu, Yan |
title |
Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
title_short |
Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
title_full |
Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
title_fullStr |
Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
title_full_unstemmed |
Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals |
title_sort |
glacial‐interglacial circulation and climatic changes in the south indian ocean (kerguelen plateau region) recorded by detrital and biogenic magnetic minerals |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04311970 https://hal.science/hal-04311970/document https://hal.science/hal-04311970/file/JGR%20Solid%20Earth%20-%202023%20-%20Liu%20-%20Glacial%E2%80%90Interglacial%20Circulation%20and%20Climatic%20Changes%20in%20the%20South%20Indian%20Ocean%20Kerguelen.pdf https://doi.org/10.1029/2023JB027741 |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
ISSN: 2169-9313 EISSN: 2169-9356 Journal of Geophysical Research : Solid Earth https://hal.science/hal-04311970 Journal of Geophysical Research : Solid Earth, 2023, 128 (11), ⟨10.1029/2023JB027741⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2023JB027741 hal-04311970 https://hal.science/hal-04311970 https://hal.science/hal-04311970/document https://hal.science/hal-04311970/file/JGR%20Solid%20Earth%20-%202023%20-%20Liu%20-%20Glacial%E2%80%90Interglacial%20Circulation%20and%20Climatic%20Changes%20in%20the%20South%20Indian%20Ocean%20Kerguelen.pdf doi:10.1029/2023JB027741 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2023JB027741 |
container_title |
Journal of Geophysical Research: Solid Earth |
container_volume |
128 |
container_issue |
11 |
_version_ |
1810494552512921600 |
spelling |
ftceafr:oai:HAL:hal-04311970v1 2024-09-15T17:46:26+00:00 Glacial‐Interglacial Circulation and Climatic Changes in the South Indian Ocean (Kerguelen Plateau Region) Recorded by Detrital and Biogenic Magnetic Minerals Liu, Yan Kissel, Catherine Mazaud, Alain Pan, Yongxin Li, Jinhua Chinese Academy of Sciences Beijing (CAS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Climat et Magnétisme (CLIMAG) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2023-11-21 https://hal.science/hal-04311970 https://hal.science/hal-04311970/document https://hal.science/hal-04311970/file/JGR%20Solid%20Earth%20-%202023%20-%20Liu%20-%20Glacial%E2%80%90Interglacial%20Circulation%20and%20Climatic%20Changes%20in%20the%20South%20Indian%20Ocean%20Kerguelen.pdf https://doi.org/10.1029/2023JB027741 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2023JB027741 hal-04311970 https://hal.science/hal-04311970 https://hal.science/hal-04311970/document https://hal.science/hal-04311970/file/JGR%20Solid%20Earth%20-%202023%20-%20Liu%20-%20Glacial%E2%80%90Interglacial%20Circulation%20and%20Climatic%20Changes%20in%20the%20South%20Indian%20Ocean%20Kerguelen.pdf doi:10.1029/2023JB027741 info:eu-repo/semantics/OpenAccess ISSN: 2169-9313 EISSN: 2169-9356 Journal of Geophysical Research : Solid Earth https://hal.science/hal-04311970 Journal of Geophysical Research : Solid Earth, 2023, 128 (11), ⟨10.1029/2023JB027741⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2023 ftceafr https://doi.org/10.1029/2023JB027741 2024-07-22T13:01:16Z Abstract The Southern Ocean (SO) plays a fundamental role in global climate due to the presence of the intense eastward‐flowing Antarctic Circumpolar Current (ACC), one of the most important ocean current systems. The configuration of the frontal systems of the ACC is controlled by the orbital‐ and millennial‐scale variations of the Southern Hemisphere westerly winds (SHWW) and the SO upwelling. However, the reconstruction of paleoclimate and paleocurrent in the SO remains controversial possibly because of the complex interpretation of paleo‐proxies and the regional variations. Here, we present results from rock magnetic measurements and electron microscopic analyses on marine core MD11‐3353 over the past 150 Kyr, which is located in the Polar Front Zone, west of the Kerguelen Plateau. Our data sets indicate that magnetic mineral assemblages in the core are dominated by detrital magnetic minerals mixed with biogenic magnetic minerals (i.e., magnetofossils formed by magnetotactic bacteria) during the interglacial periods. Changes in the detrital magnetic mineral content indicate a strong modulation of the ACC intensity and the SHWW stress at the orbital scale over the last climatic cycle with an enhanced activity during the glacial periods. The increase in magnetofossils content during the interglacial periods indicates an enhanced nutrient supply from the SO upwelling resulting from the southward migration of the Antarctic Polar Front. Our results suggest that the variations of concentration and assemblage of magnetic minerals can be used as faithful proxies for reconstructing ocean circulation and upwelling changes in the South Indian Ocean over the past 150 Kyr. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Journal of Geophysical Research: Solid Earth 128 11 |