Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet
High-elevation sites from the inner part of the East Antarctic plateau sample windborne dust representative of large portions of the Southern hemisphere, and are sensitive to long-range atmospheric transport conditions to polar areas. On the periphery of the ice sheet, conversely, the aeolian transp...
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Online Access: | https://hdl.handle.net/11568/158850 https://doi.org/10.1016/j.quascirev.2012.11.033 https://www.sciencedirect.com/science/article/pii/S0277379112005355 |
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ftunivpisairis:oai:arpi.unipi.it:11568/158850 2024-04-14T08:04:30+00:00 Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet Delmonte B. BARONI, CARLO Andersson P. S. Narcisi B. SALVATORE, MARIA CRISTINA Petit J. R. Scarchilli C. Frezzotti M. Albani S. Maggi V. Delmonte, B. Baroni, Carlo Andersson, P. S. Narcisi, B. Salvatore, MARIA CRISTINA Petit, J. R. Scarchilli, C. Frezzotti, M. Albani, S. Maggi, V. 2013 STAMPA https://hdl.handle.net/11568/158850 https://doi.org/10.1016/j.quascirev.2012.11.033 https://www.sciencedirect.com/science/article/pii/S0277379112005355 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000319951600005 volume:64 firstpage:76 lastpage:89 numberofpages:14 journal:QUATERNARY SCIENCE REVIEWS https://hdl.handle.net/11568/158850 doi:10.1016/j.quascirev.2012.11.033 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873265469 https://www.sciencedirect.com/science/article/pii/S0277379112005355 info:eu-repo/semantics/closedAccess Dust Antarctica Holocene Ice core Sr-Nd isotopes info:eu-repo/semantics/article 2013 ftunivpisairis https://doi.org/10.1016/j.quascirev.2012.11.033 2024-03-21T18:34:36Z High-elevation sites from the inner part of the East Antarctic plateau sample windborne dust representative of large portions of the Southern hemisphere, and are sensitive to long-range atmospheric transport conditions to polar areas. On the periphery of the ice sheet, conversely, the aeolian transport of particles from high-elevation ice-free areas can locally represent a relatively important additional input of dust to the atmosphere, and the interplay of atmospheric dynamics, dust transport and deposition is strictly related to the regional atmospheric circulation behaviour both at present-day and in the past. The understanding of the spatial extent where local sources can influence the mineral dust budget on the ice sheet is fundamental for understanding the atmospheric dust cycle in Antarctica and for the interpretation of the dust history in marginal glaciological settings. In this work we investigate the spatial variability of dust flux and provenance during modern preindustrial) and Holocene times along a transect connecting Talos Dome to the internal sites of the Antarctic plateau and we extend the existing documentation of the isotopic (SreNd) fingerprint of dustsized sediments from Victoria Land source areas. Dust flux, grain size and isotopic composition show a marked variability between Talos Dome, Mid Point, D4 and Dome C/Vostok, suggesting that local sources play an important role on the periphery of the ice sheet. Microscope observations reveal that background mineral aerosol in the TALDICE core is composed by a mixture of dust, volcanic particles and micrometric-sized fragments of diatoms, these latter representing a small but pervasive component of Antarctic sediments. A set of samples from Victoria Land, mostly consisting of regolith and glacial deposits from high-elevation areas, was collected specially for this work and the isotopic composition of the dust-sized fraction of samples was analyzed. Results reveal a close relationship with the parent lithologies, but direct comparison between ... Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Ice Sheet Victoria Land ARPI - Archivio della Ricerca dell'Università di Pisa Antarctic Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) The Antarctic Victoria Land Quaternary Science Reviews 64 76 89 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Dust Antarctica Holocene Ice core Sr-Nd isotopes |
spellingShingle |
Dust Antarctica Holocene Ice core Sr-Nd isotopes Delmonte B. BARONI, CARLO Andersson P. S. Narcisi B. SALVATORE, MARIA CRISTINA Petit J. R. Scarchilli C. Frezzotti M. Albani S. Maggi V. Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
topic_facet |
Dust Antarctica Holocene Ice core Sr-Nd isotopes |
description |
High-elevation sites from the inner part of the East Antarctic plateau sample windborne dust representative of large portions of the Southern hemisphere, and are sensitive to long-range atmospheric transport conditions to polar areas. On the periphery of the ice sheet, conversely, the aeolian transport of particles from high-elevation ice-free areas can locally represent a relatively important additional input of dust to the atmosphere, and the interplay of atmospheric dynamics, dust transport and deposition is strictly related to the regional atmospheric circulation behaviour both at present-day and in the past. The understanding of the spatial extent where local sources can influence the mineral dust budget on the ice sheet is fundamental for understanding the atmospheric dust cycle in Antarctica and for the interpretation of the dust history in marginal glaciological settings. In this work we investigate the spatial variability of dust flux and provenance during modern preindustrial) and Holocene times along a transect connecting Talos Dome to the internal sites of the Antarctic plateau and we extend the existing documentation of the isotopic (SreNd) fingerprint of dustsized sediments from Victoria Land source areas. Dust flux, grain size and isotopic composition show a marked variability between Talos Dome, Mid Point, D4 and Dome C/Vostok, suggesting that local sources play an important role on the periphery of the ice sheet. Microscope observations reveal that background mineral aerosol in the TALDICE core is composed by a mixture of dust, volcanic particles and micrometric-sized fragments of diatoms, these latter representing a small but pervasive component of Antarctic sediments. A set of samples from Victoria Land, mostly consisting of regolith and glacial deposits from high-elevation areas, was collected specially for this work and the isotopic composition of the dust-sized fraction of samples was analyzed. Results reveal a close relationship with the parent lithologies, but direct comparison between ... |
author2 |
Delmonte, B. Baroni, Carlo Andersson, P. S. Narcisi, B. Salvatore, MARIA CRISTINA Petit, J. R. Scarchilli, C. Frezzotti, M. Albani, S. Maggi, V. |
format |
Article in Journal/Newspaper |
author |
Delmonte B. BARONI, CARLO Andersson P. S. Narcisi B. SALVATORE, MARIA CRISTINA Petit J. R. Scarchilli C. Frezzotti M. Albani S. Maggi V. |
author_facet |
Delmonte B. BARONI, CARLO Andersson P. S. Narcisi B. SALVATORE, MARIA CRISTINA Petit J. R. Scarchilli C. Frezzotti M. Albani S. Maggi V. |
author_sort |
Delmonte B. |
title |
Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
title_short |
Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
title_full |
Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
title_fullStr |
Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
title_full_unstemmed |
Modern and Holocene aeolian dust variability from Talos Dome (Northern Victoria Land) to the interior of the Antarctic ice sheet |
title_sort |
modern and holocene aeolian dust variability from talos dome (northern victoria land) to the interior of the antarctic ice sheet |
publishDate |
2013 |
url |
https://hdl.handle.net/11568/158850 https://doi.org/10.1016/j.quascirev.2012.11.033 https://www.sciencedirect.com/science/article/pii/S0277379112005355 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic Talos Dome The Antarctic Victoria Land |
geographic_facet |
Antarctic Talos Dome The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica ice core Ice Sheet Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica ice core Ice Sheet Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000319951600005 volume:64 firstpage:76 lastpage:89 numberofpages:14 journal:QUATERNARY SCIENCE REVIEWS https://hdl.handle.net/11568/158850 doi:10.1016/j.quascirev.2012.11.033 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873265469 https://www.sciencedirect.com/science/article/pii/S0277379112005355 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2012.11.033 |
container_title |
Quaternary Science Reviews |
container_volume |
64 |
container_start_page |
76 |
op_container_end_page |
89 |
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1796301055245418496 |