Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles
A new ice core (TALDICE) drilled at Talos Dome (East Antarctica, Ross Sea sector) preserves a ca. 250-ka long record of palaeoclimate and atmospheric history. We investigate dust variability and provenance at the site during glacial periods and the Holocene through the Sr-Nd isotopic composition of...
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Online Access: | http://hdl.handle.net/11590/353600 https://doi.org/10.1002/jqs.1418 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1417 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/353600 2024-02-27T08:33:26+00:00 Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles Delmonte B. Baroni C. Andersson P. S. Schoberg H. Hansson M. Aciego S. Petit J. -R. Albani S. Mazzola C. Maggi V. Frezzotti M. Delmonte, B. Baroni, C. Andersson, P. S. Schoberg, H. Hansson, M. Aciego, S. Petit, J. -R. Albani, S. Mazzola, C. Maggi, V. Frezzotti, M. 2010 http://hdl.handle.net/11590/353600 https://doi.org/10.1002/jqs.1418 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1417 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000285282500013 volume:25 issue:8 firstpage:1327 lastpage:1337 numberofpages:11 journal:JOURNAL OF QUATERNARY SCIENCE http://hdl.handle.net/11590/353600 doi:10.1002/jqs.1418 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78649610222 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1417 Aeolian dust Antarctica Ice core Paleoclimate info:eu-repo/semantics/article 2010 ftunivroma3iris https://doi.org/10.1002/jqs.1418 2024-01-31T17:42:25Z A new ice core (TALDICE) drilled at Talos Dome (East Antarctica, Ross Sea sector) preserves a ca. 250-ka long record of palaeoclimate and atmospheric history. We investigate dust variability and provenance at the site during glacial periods and the Holocene through the Sr-Nd isotopic composition of ice core dust and potential source areas (PSA). We provide new isotopic data on dust sources from Victoria Land such as regoliths, glacial drifts, aeolian sands and beach deposits. Some of these sources are located at high altitude and are known to have been ice free throughout the Pleistocene. The major features of the TALDICE dust record are very similar to those from central East Antarctica. During glacial times, South America was the dominant dust supplier for Talos Dome as well as for the entire East Antarctic plateau. Conversely, during the Holocene the principal input of mineral dust at Talos Dome probably derives from proximal sources which are the ice-free areas of northern Victoria Land, located at similar altitude with respect to the drilling site. Atmospheric mobilisation of dust from these neighbouring areas and transport inland to Talos Dome can be ultimately associated with advection of maritime air masses from the Pacific/Ross Sea region. © 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ross Sea Victoria Land Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Antarctic East Antarctica Ross Sea Victoria Land Pacific Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Journal of Quaternary Science 25 8 1327 1337 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
Aeolian dust Antarctica Ice core Paleoclimate |
spellingShingle |
Aeolian dust Antarctica Ice core Paleoclimate Delmonte B. Baroni C. Andersson P. S. Schoberg H. Hansson M. Aciego S. Petit J. -R. Albani S. Mazzola C. Maggi V. Frezzotti M. Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
topic_facet |
Aeolian dust Antarctica Ice core Paleoclimate |
description |
A new ice core (TALDICE) drilled at Talos Dome (East Antarctica, Ross Sea sector) preserves a ca. 250-ka long record of palaeoclimate and atmospheric history. We investigate dust variability and provenance at the site during glacial periods and the Holocene through the Sr-Nd isotopic composition of ice core dust and potential source areas (PSA). We provide new isotopic data on dust sources from Victoria Land such as regoliths, glacial drifts, aeolian sands and beach deposits. Some of these sources are located at high altitude and are known to have been ice free throughout the Pleistocene. The major features of the TALDICE dust record are very similar to those from central East Antarctica. During glacial times, South America was the dominant dust supplier for Talos Dome as well as for the entire East Antarctic plateau. Conversely, during the Holocene the principal input of mineral dust at Talos Dome probably derives from proximal sources which are the ice-free areas of northern Victoria Land, located at similar altitude with respect to the drilling site. Atmospheric mobilisation of dust from these neighbouring areas and transport inland to Talos Dome can be ultimately associated with advection of maritime air masses from the Pacific/Ross Sea region. © 2010 John Wiley & Sons, Ltd. |
author2 |
Delmonte, B. Baroni, C. Andersson, P. S. Schoberg, H. Hansson, M. Aciego, S. Petit, J. -R. Albani, S. Mazzola, C. Maggi, V. Frezzotti, M. |
format |
Article in Journal/Newspaper |
author |
Delmonte B. Baroni C. Andersson P. S. Schoberg H. Hansson M. Aciego S. Petit J. -R. Albani S. Mazzola C. Maggi V. Frezzotti M. |
author_facet |
Delmonte B. Baroni C. Andersson P. S. Schoberg H. Hansson M. Aciego S. Petit J. -R. Albani S. Mazzola C. Maggi V. Frezzotti M. |
author_sort |
Delmonte B. |
title |
Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
title_short |
Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
title_full |
Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
title_fullStr |
Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
title_full_unstemmed |
Aeolian dust in the Talos Dome ice core (East Antarctica, Pacific/Ross Sea sector): Victoria Land versus remote sources over the last two climate cycles |
title_sort |
aeolian dust in the talos dome ice core (east antarctica, pacific/ross sea sector): victoria land versus remote sources over the last two climate cycles |
publishDate |
2010 |
url |
http://hdl.handle.net/11590/353600 https://doi.org/10.1002/jqs.1418 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1417 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctica Ross Sea Victoria Land Pacific Talos Dome |
geographic_facet |
Antarctic East Antarctica Ross Sea Victoria Land Pacific Talos Dome |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ross Sea Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000285282500013 volume:25 issue:8 firstpage:1327 lastpage:1337 numberofpages:11 journal:JOURNAL OF QUATERNARY SCIENCE http://hdl.handle.net/11590/353600 doi:10.1002/jqs.1418 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78649610222 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1417 |
op_doi |
https://doi.org/10.1002/jqs.1418 |
container_title |
Journal of Quaternary Science |
container_volume |
25 |
container_issue |
8 |
container_start_page |
1327 |
op_container_end_page |
1337 |
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1792045690560446464 |