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
Abstract 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 compos...
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crwiley:10.1002/jqs.1418 2024-09-09T19:05:02+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, Barbara Baroni, Carlo Andersson, Per S. Schoberg, Hans Hansson, Margareta Aciego, Sarah Petit, Jean‐Robert Albani, Samuel Mazzola, Claudia Maggi, Valter Frezzotti, Massimo 2010 http://dx.doi.org/10.1002/jqs.1418 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1418 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1418 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 25, issue 8, page 1327-1337 ISSN 0267-8179 1099-1417 journal-article 2010 crwiley https://doi.org/10.1002/jqs.1418 2024-06-20T04:22:51Z Abstract 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. Copyright © 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ross Sea Victoria Land Wiley Online Library Antarctic East Antarctica Pacific Ross Sea Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Victoria Land Journal of Quaternary Science 25 8 1327 1337 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract 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. Copyright © 2010 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Delmonte, Barbara Baroni, Carlo Andersson, Per S. Schoberg, Hans Hansson, Margareta Aciego, Sarah Petit, Jean‐Robert Albani, Samuel Mazzola, Claudia Maggi, Valter Frezzotti, Massimo |
spellingShingle |
Delmonte, Barbara Baroni, Carlo Andersson, Per S. Schoberg, Hans Hansson, Margareta Aciego, Sarah Petit, Jean‐Robert Albani, Samuel Mazzola, Claudia Maggi, Valter Frezzotti, Massimo 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 |
author_facet |
Delmonte, Barbara Baroni, Carlo Andersson, Per S. Schoberg, Hans Hansson, Margareta Aciego, Sarah Petit, Jean‐Robert Albani, Samuel Mazzola, Claudia Maggi, Valter Frezzotti, Massimo |
author_sort |
Delmonte, Barbara |
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 |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/jqs.1418 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1418 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1418 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctica Pacific Ross Sea Talos Dome Victoria Land |
geographic_facet |
Antarctic East Antarctica Pacific Ross Sea Talos Dome Victoria Land |
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_source |
Journal of Quaternary Science volume 25, issue 8, page 1327-1337 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
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 |
_version_ |
1809819018581770240 |