Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum
International audience Ice cores from inner East Antarctica provided some of the longest and most detailed climatic reconstructions and allowed understanding the relationships between atmospheric mineral dust and climate. In this work we present synchrotron radiation X‐ray Fluorescence geochemical d...
Published in: | Geochemistry, Geophysics, Geosystems |
---|---|
Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
|
Subjects: | |
Online Access: | https://hal.science/hal-02196120 https://hal.science/hal-02196120/document https://hal.science/hal-02196120/file/2018GC007658.pdf https://doi.org/10.1029/2018GC007658 |
id |
ftceafr:oai:HAL:hal-02196120v1 |
---|---|
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.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Baccolo, G. Delmonte, B. Albani, Samuel Baroni, C. Cibin, G. Frezzotti, M. Hampai, D. Marcelli, A. Revel, Marie Salvatore, C. Stenni, B. Maggi, V. Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Ice cores from inner East Antarctica provided some of the longest and most detailed climatic reconstructions and allowed understanding the relationships between atmospheric mineral dust and climate. In this work we present synchrotron radiation X‐ray Fluorescence geochemical data of dust from the TALDICE ice core drilled at Talos Dome, a peripheral ice dome of East Antarctica (Western Ross Sea). Results highlight a dominant southern South American origin for dust at TALDICE during the Last Glacial Maximum, similarly to other sites located further inland onto the polar plateau. On the contrary, a different scenario concerns Talos Dome during the Holocene if it is compared to more inner sites. The tight connection between high southern latitudes and Antarctica that characterizes cold climate stages becomes weaker since the onset of the last climatic transition and throughout the Holocene. The net effect of this process at Talos Dome is a modification of the atmospheric and environmental settings, owing to local Antarctic sources of Victoria Land to gain importance and become the dominant ones. At the same time in inner East Antarctica the provenance of dust remains remote also during Holocene, revealing an evolution of the homogeneous scenario observed in glacial periods. The enhanced sensitivity of peripheral ice sheet sites to local dust sources makes Talos Dome an ideal site to assess the climatic and atmospheric changes of the peripheral sectors of East Antarctica during the current interglacial period. |
author2 |
Department of Earth and Environmental Sciences Milano Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) 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) Earth Sciences Department University of Pisa - Università di Pisa DIAMOND Light source Italian National agency for new technologies, Energy and sustainable economic development Frascati (ENEA) INFN Frascati Istituto Nazionale di Fisica Nucleare (INFN) Géoazur (GEOAZUR 7329) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud ) Department of Environmental Sciences, Informatics and Statistics Venezia University of Ca’ Foscari Venice, Italy |
format |
Article in Journal/Newspaper |
author |
Baccolo, G. Delmonte, B. Albani, Samuel Baroni, C. Cibin, G. Frezzotti, M. Hampai, D. Marcelli, A. Revel, Marie Salvatore, C. Stenni, B. Maggi, V. |
author_facet |
Baccolo, G. Delmonte, B. Albani, Samuel Baroni, C. Cibin, G. Frezzotti, M. Hampai, D. Marcelli, A. Revel, Marie Salvatore, C. Stenni, B. Maggi, V. |
author_sort |
Baccolo, G. |
title |
Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
title_short |
Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
title_full |
Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
title_fullStr |
Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
title_full_unstemmed |
Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum |
title_sort |
regionalization of the atmospheric dust cycle on the periphery of the east antarctic ice sheet since the last glacial maximum |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02196120 https://hal.science/hal-02196120/document https://hal.science/hal-02196120/file/2018GC007658.pdf https://doi.org/10.1029/2018GC007658 |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Ross Sea Victoria Land |
op_source |
EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-02196120 Geochemistry, Geophysics, Geosystems, 2018, 19 (9), pp.3540-3554. ⟨10.1029/2018GC007658⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018GC007658 hal-02196120 https://hal.science/hal-02196120 https://hal.science/hal-02196120/document https://hal.science/hal-02196120/file/2018GC007658.pdf doi:10.1029/2018GC007658 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018GC007658 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
19 |
container_issue |
9 |
container_start_page |
3540 |
op_container_end_page |
3554 |
_version_ |
1810493787701510144 |
spelling |
ftceafr:oai:HAL:hal-02196120v1 2024-09-15T17:45:52+00:00 Regionalization of the Atmospheric Dust Cycle on the Periphery of the East Antarctic Ice Sheet Since the Last Glacial Maximum Baccolo, G. Delmonte, B. Albani, Samuel Baroni, C. Cibin, G. Frezzotti, M. Hampai, D. Marcelli, A. Revel, Marie Salvatore, C. Stenni, B. Maggi, V. Department of Earth and Environmental Sciences Milano Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) 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) Earth Sciences Department University of Pisa - Università di Pisa DIAMOND Light source Italian National agency for new technologies, Energy and sustainable economic development Frascati (ENEA) INFN Frascati Istituto Nazionale di Fisica Nucleare (INFN) Géoazur (GEOAZUR 7329) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud ) Department of Environmental Sciences, Informatics and Statistics Venezia University of Ca’ Foscari Venice, Italy 2018-09-11 https://hal.science/hal-02196120 https://hal.science/hal-02196120/document https://hal.science/hal-02196120/file/2018GC007658.pdf https://doi.org/10.1029/2018GC007658 en eng HAL CCSD AGU and the Geochemical Society info:eu-repo/semantics/altIdentifier/doi/10.1029/2018GC007658 hal-02196120 https://hal.science/hal-02196120 https://hal.science/hal-02196120/document https://hal.science/hal-02196120/file/2018GC007658.pdf doi:10.1029/2018GC007658 info:eu-repo/semantics/OpenAccess EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-02196120 Geochemistry, Geophysics, Geosystems, 2018, 19 (9), pp.3540-3554. ⟨10.1029/2018GC007658⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2018 ftceafr https://doi.org/10.1029/2018GC007658 2024-07-22T13:14:57Z International audience Ice cores from inner East Antarctica provided some of the longest and most detailed climatic reconstructions and allowed understanding the relationships between atmospheric mineral dust and climate. In this work we present synchrotron radiation X‐ray Fluorescence geochemical data of dust from the TALDICE ice core drilled at Talos Dome, a peripheral ice dome of East Antarctica (Western Ross Sea). Results highlight a dominant southern South American origin for dust at TALDICE during the Last Glacial Maximum, similarly to other sites located further inland onto the polar plateau. On the contrary, a different scenario concerns Talos Dome during the Holocene if it is compared to more inner sites. The tight connection between high southern latitudes and Antarctica that characterizes cold climate stages becomes weaker since the onset of the last climatic transition and throughout the Holocene. The net effect of this process at Talos Dome is a modification of the atmospheric and environmental settings, owing to local Antarctic sources of Victoria Land to gain importance and become the dominant ones. At the same time in inner East Antarctica the provenance of dust remains remote also during Holocene, revealing an evolution of the homogeneous scenario observed in glacial periods. The enhanced sensitivity of peripheral ice sheet sites to local dust sources makes Talos Dome an ideal site to assess the climatic and atmospheric changes of the peripheral sectors of East Antarctica during the current interglacial period. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Ross Sea Victoria Land HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Geochemistry, Geophysics, Geosystems 19 9 3540 3554 |