Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales
Central East Antarctic ice cores preserve stratigraphic records of mineral dust originating from remote sources in the Southern Hemisphere, and represent useful indicators of climatic variations on glacial-interglacial time scales. The peripheries of the East Antarctic Ice Sheet, where ice-free area...
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Online Access: | http://hdl.handle.net/11568/156281 https://doi.org/10.5194/cp-8-741-2012 |
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ftunivpisairis:oai:arpi.unipi.it:11568/156281 2024-04-14T08:04:37+00:00 Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales Albani S Delmonte B Maggi V Petit J. R Stenni B Mazzola C Frezzotti M. BARONI, CARLO Albani, S Delmonte, B Maggi, V Baroni, Carlo Petit, J. R. Stenni, B Mazzola, C Frezzotti, M. 2012 STAMPA http://hdl.handle.net/11568/156281 https://doi.org/10.5194/cp-8-741-2012 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000304059700024 volume:8 issue:2 firstpage:741 lastpage:750 numberofpages:10 journal:CLIMATE OF THE PAST http://hdl.handle.net/11568/156281 doi:10.5194/cp-8-741-2012 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84859725516 Atmospheric transport dust Ice core Dome C Talos Dome Glacial-interglacial cycle Last Glacial Maximum Deglaciation Antarctica Ross Sea info:eu-repo/semantics/article 2012 ftunivpisairis https://doi.org/10.5194/cp-8-741-2012 2024-03-21T18:33:14Z Central East Antarctic ice cores preserve stratigraphic records of mineral dust originating from remote sources in the Southern Hemisphere, and represent useful indicators of climatic variations on glacial-interglacial time scales. The peripheries of the East Antarctic Ice Sheet, where ice-free areas with the potential to emit dust exist, have been less explored from this point of view. Here, we present a new profile of dust deposition flux and grain size distributions from an ice core drilled at Talos Dome (TALDICE, Northern Victoria Land, East Antarctica), where there is a significant input of dust from proximal Antarctic ice-free areas. We analyze dust and stable water isotopes variations from the Last Glacial Maximum to the Late Holocene, and compare them to the EPICA Dome C profiles from central East Antarctica. The smaller glacial-interglacial variations at Talos Dome compared to Dome C and a distinctive decreasing trend during the Holocene characterize the TALDICE dust profile. By deciphering the composite dust signal from both remote and local sources, we show the potential of this combined proxy of source activity and atmospheric transport to give information on both regional and larger spatial scales. In particular, we show how a regional signal, which we relate to the deglaciation history of the Ross Sea embayment, can be superimposed to the broader scale glacial-interglacial variability that characterizes other Antarctic sites. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Ross Sea Victoria Land ARPI - Archivio della Ricerca dell'Università di Pisa Antarctic East Antarctic Ice Sheet East Antarctica Ross Sea Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Victoria Land Climate of the Past 8 2 741 750 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Atmospheric transport dust Ice core Dome C Talos Dome Glacial-interglacial cycle Last Glacial Maximum Deglaciation Antarctica Ross Sea |
spellingShingle |
Atmospheric transport dust Ice core Dome C Talos Dome Glacial-interglacial cycle Last Glacial Maximum Deglaciation Antarctica Ross Sea Albani S Delmonte B Maggi V Petit J. R Stenni B Mazzola C Frezzotti M. BARONI, CARLO Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
topic_facet |
Atmospheric transport dust Ice core Dome C Talos Dome Glacial-interglacial cycle Last Glacial Maximum Deglaciation Antarctica Ross Sea |
description |
Central East Antarctic ice cores preserve stratigraphic records of mineral dust originating from remote sources in the Southern Hemisphere, and represent useful indicators of climatic variations on glacial-interglacial time scales. The peripheries of the East Antarctic Ice Sheet, where ice-free areas with the potential to emit dust exist, have been less explored from this point of view. Here, we present a new profile of dust deposition flux and grain size distributions from an ice core drilled at Talos Dome (TALDICE, Northern Victoria Land, East Antarctica), where there is a significant input of dust from proximal Antarctic ice-free areas. We analyze dust and stable water isotopes variations from the Last Glacial Maximum to the Late Holocene, and compare them to the EPICA Dome C profiles from central East Antarctica. The smaller glacial-interglacial variations at Talos Dome compared to Dome C and a distinctive decreasing trend during the Holocene characterize the TALDICE dust profile. By deciphering the composite dust signal from both remote and local sources, we show the potential of this combined proxy of source activity and atmospheric transport to give information on both regional and larger spatial scales. In particular, we show how a regional signal, which we relate to the deglaciation history of the Ross Sea embayment, can be superimposed to the broader scale glacial-interglacial variability that characterizes other Antarctic sites. |
author2 |
Albani, S Delmonte, B Maggi, V Baroni, Carlo Petit, J. R. Stenni, B Mazzola, C Frezzotti, M. |
format |
Article in Journal/Newspaper |
author |
Albani S Delmonte B Maggi V Petit J. R Stenni B Mazzola C Frezzotti M. BARONI, CARLO |
author_facet |
Albani S Delmonte B Maggi V Petit J. R Stenni B Mazzola C Frezzotti M. BARONI, CARLO |
author_sort |
Albani S |
title |
Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
title_short |
Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
title_full |
Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
title_fullStr |
Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
title_full_unstemmed |
Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales |
title_sort |
interpreting last glacial to holocene dust changes at talos dome (east antarctica): implications for atmospheric variations from regional to hemispheric scales |
publishDate |
2012 |
url |
http://hdl.handle.net/11568/156281 https://doi.org/10.5194/cp-8-741-2012 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctic Ice Sheet East Antarctica Ross Sea Talos Dome Victoria Land |
geographic_facet |
Antarctic East Antarctic Ice Sheet East Antarctica Ross Sea Talos Dome Victoria Land |
genre |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Ice Sheet Ross Sea Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000304059700024 volume:8 issue:2 firstpage:741 lastpage:750 numberofpages:10 journal:CLIMATE OF THE PAST http://hdl.handle.net/11568/156281 doi:10.5194/cp-8-741-2012 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84859725516 |
op_doi |
https://doi.org/10.5194/cp-8-741-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
2 |
container_start_page |
741 |
op_container_end_page |
750 |
_version_ |
1796301260245172224 |