A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core
A detailed tephra record for the last 16,000 years of the TALDICE ice core drilled at Talos Dome (East Antarctica, Pacific/Ross Sea sector) is documented. Traces of 26 different explosive volcanic eruptions, dated by ice core chronology and framed within the climate (d18O) record for the core, have...
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Online Access: | http://hdl.handle.net/11368/2626916 https://doi.org/10.1016/j.quascirev.2012.06.011 |
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ftunitriestiris:oai:arts.units.it:11368/2626916 2023-05-15T13:32:20+02:00 A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core Narcisi B. Petit J. R. Delmonte B. Scarchilli C. STENNI, BARBARA Narcisi, B. Petit, J. R. Delmonte, B. Scarchilli, C. Stenni, Barbara 2012 http://hdl.handle.net/11368/2626916 https://doi.org/10.1016/j.quascirev.2012.06.011 eng eng volume:49 firstpage:52 lastpage:63 numberofpages:12 journal:QUATERNARY SCIENCE REVIEWS http://hdl.handle.net/11368/2626916 doi:10.1016/j.quascirev.2012.06.011 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84864032461 Tephra layer ice core East Antarctica climate record Holocene info:eu-repo/semantics/article 2012 ftunitriestiris https://doi.org/10.1016/j.quascirev.2012.06.011 2023-04-09T06:11:18Z A detailed tephra record for the last 16,000 years of the TALDICE ice core drilled at Talos Dome (East Antarctica, Pacific/Ross Sea sector) is documented. Traces of 26 different explosive volcanic eruptions, dated by ice core chronology and framed within the climate (d18O) record for the core, have been identified. Glass major element composition and grain size data indicate that all prominent tephra layers derive from Antarctic volcanic activity and likely originated in proximal volcanoes of the Melbourne Volcanic Province (Northern Victoria Land). Two other Antarctic horizons may have originated from the more distant volcanoes of Mount Berlin (Marie Byrd Land, West Antarctica) and Mount Erebus (Ross Island, Southern Victoria Land). Moreover, based on glass-shard geochemistry and a 20-year analysis of atmospheric back trajectories suggesting ash transport from South America to the drilling site by the circumpolar westerly circulation, a few faint microtephra horizons are attributed to Andean volcanic activity. Two of these tephras are interpreted to be related to known Holocene explosive eruptions from the volcanoes of Mount Hudson and Mount Burney. Finally, by comparing compositional features in conjunction with age data, three TALDICE tephras have been successfully correlated with volcanic layers in other ice records of the Antarctic ice sheet. Altogether, our results expand the Antarctic tephrostratigraphic framework and add value to the prospects for continental-scale correlations between ice cores and Southern Hemisphere sediment archives. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Marie Byrd Land Ross Island Ross Sea Victoria Land West Antarctica Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Antarctic The Antarctic East Antarctica Ross Sea West Antarctica Victoria Land Ross Island Pacific Hudson Byrd Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Mount Erebus ENVELOPE(167.167,167.167,-77.533,-77.533) Mount Berlin ENVELOPE(-135.867,-135.867,-76.050,-76.050) Quaternary Science Reviews 49 52 63 |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
Tephra layer ice core East Antarctica climate record Holocene |
spellingShingle |
Tephra layer ice core East Antarctica climate record Holocene Narcisi B. Petit J. R. Delmonte B. Scarchilli C. STENNI, BARBARA A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
topic_facet |
Tephra layer ice core East Antarctica climate record Holocene |
description |
A detailed tephra record for the last 16,000 years of the TALDICE ice core drilled at Talos Dome (East Antarctica, Pacific/Ross Sea sector) is documented. Traces of 26 different explosive volcanic eruptions, dated by ice core chronology and framed within the climate (d18O) record for the core, have been identified. Glass major element composition and grain size data indicate that all prominent tephra layers derive from Antarctic volcanic activity and likely originated in proximal volcanoes of the Melbourne Volcanic Province (Northern Victoria Land). Two other Antarctic horizons may have originated from the more distant volcanoes of Mount Berlin (Marie Byrd Land, West Antarctica) and Mount Erebus (Ross Island, Southern Victoria Land). Moreover, based on glass-shard geochemistry and a 20-year analysis of atmospheric back trajectories suggesting ash transport from South America to the drilling site by the circumpolar westerly circulation, a few faint microtephra horizons are attributed to Andean volcanic activity. Two of these tephras are interpreted to be related to known Holocene explosive eruptions from the volcanoes of Mount Hudson and Mount Burney. Finally, by comparing compositional features in conjunction with age data, three TALDICE tephras have been successfully correlated with volcanic layers in other ice records of the Antarctic ice sheet. Altogether, our results expand the Antarctic tephrostratigraphic framework and add value to the prospects for continental-scale correlations between ice cores and Southern Hemisphere sediment archives. |
author2 |
Narcisi, B. Petit, J. R. Delmonte, B. Scarchilli, C. Stenni, Barbara |
format |
Article in Journal/Newspaper |
author |
Narcisi B. Petit J. R. Delmonte B. Scarchilli C. STENNI, BARBARA |
author_facet |
Narcisi B. Petit J. R. Delmonte B. Scarchilli C. STENNI, BARBARA |
author_sort |
Narcisi B. |
title |
A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
title_short |
A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
title_full |
A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
title_fullStr |
A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
title_full_unstemmed |
A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core |
title_sort |
16,000-yr tephra framework for the antarctic ice sheet: a contribution from the new talos dome core |
publishDate |
2012 |
url |
http://hdl.handle.net/11368/2626916 https://doi.org/10.1016/j.quascirev.2012.06.011 |
long_lat |
ENVELOPE(-130.000,-130.000,-78.000,-78.000) ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(167.167,167.167,-77.533,-77.533) ENVELOPE(-135.867,-135.867,-76.050,-76.050) |
geographic |
Antarctic The Antarctic East Antarctica Ross Sea West Antarctica Victoria Land Ross Island Pacific Hudson Byrd Marie Byrd Land Talos Dome Mount Erebus Mount Berlin |
geographic_facet |
Antarctic The Antarctic East Antarctica Ross Sea West Antarctica Victoria Land Ross Island Pacific Hudson Byrd Marie Byrd Land Talos Dome Mount Erebus Mount Berlin |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Marie Byrd Land Ross Island Ross Sea Victoria Land West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Marie Byrd Land Ross Island Ross Sea Victoria Land West Antarctica |
op_relation |
volume:49 firstpage:52 lastpage:63 numberofpages:12 journal:QUATERNARY SCIENCE REVIEWS http://hdl.handle.net/11368/2626916 doi:10.1016/j.quascirev.2012.06.011 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84864032461 |
op_doi |
https://doi.org/10.1016/j.quascirev.2012.06.011 |
container_title |
Quaternary Science Reviews |
container_volume |
49 |
container_start_page |
52 |
op_container_end_page |
63 |
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1766025911586521088 |