Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years
Trace elements (V, Cr, Mn, Fe, Co, Cu, Zn, As, Rb, Sr, Mo, Cd, Sb, Ba, Tl, Pb, Bi, Th and U) and Pb isotopic compositions from the EPICA (European Project for Ice Coring in Antarctica) Dome C ice core have been determined using inductively coupled plasma sector field mass spectrometry (ICP-SFMS) and...
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Online Access: | https://doi.org/10.1051/e3sconf/20130123001 https://doaj.org/article/c266d500cb2946e7b836df75dbd562b3 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:c266d500cb2946e7b836df75dbd562b3 2023-05-15T14:03:46+02:00 Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years Hong S. Han C. H. Hwang H. J. Soyol-Erdene T-O. Kang J. H. Hur S. D. Burn-Nunes L. J. Gabrielli P. Barbante C. Boutron C. F. 2013-04-01 https://doi.org/10.1051/e3sconf/20130123001 https://doaj.org/article/c266d500cb2946e7b836df75dbd562b3 en fr eng fre EDP Sciences doi:10.1051/e3sconf/20130123001 2267-1242 https://doaj.org/article/c266d500cb2946e7b836df75dbd562b3 undefined E3S Web of Conferences, Vol 1, p 23001 (2013) Trace elements Pb isotopes Antarctic ice Climate change Mid-Brunhes Event geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1051/e3sconf/20130123001 2023-01-22T19:31:01Z Trace elements (V, Cr, Mn, Fe, Co, Cu, Zn, As, Rb, Sr, Mo, Cd, Sb, Ba, Tl, Pb, Bi, Th and U) and Pb isotopic compositions from the EPICA (European Project for Ice Coring in Antarctica) Dome C ice core have been determined using inductively coupled plasma sector field mass spectrometry (ICP-SFMS) and thermal ionization mass spectrometry (TIMS), covering the period from ~533 kyr BP to ~800 kyr BP, respectively. Our data have enabled us to extend the previous EDC records of trace elements and Pb isotopes from the Holocene back to the Marine Isotopic Stage 20.2, ~800 kyr BP. We here discuss the EDC records of Ba, Rb, Mo, Sb, Cd, Tl, Bi and Pb isotopes. Crustal elements such as Ba and Rb show well defined variations in concentrations in relation to climatic conditions with lower values during the interglacial periods and much higher values during the coldest periods of the last eight climatic cycles. Volcanogenic Cd, Tl and Bi show a less pronounced relationship between concentrations and climatic conditions. The isotopic signatures of Pb suggest that changes in the provenance of dust reaching the East Antarctic Plateau from Potential Source Areas occurred during the interglacial periods before the MBE. Our data suggest that the main factors affecting deposition fluxes and sources of natural trace elements over Antarctica are most likely linked to a progressive coupling of the climates of Antarctica and lower latitudes over the past 800 kyr. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica EPICA ice core Unknown Antarctic East Antarctica E3S Web of Conferences 1 23001 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English French |
topic |
Trace elements Pb isotopes Antarctic ice Climate change Mid-Brunhes Event geo envir |
spellingShingle |
Trace elements Pb isotopes Antarctic ice Climate change Mid-Brunhes Event geo envir Hong S. Han C. H. Hwang H. J. Soyol-Erdene T-O. Kang J. H. Hur S. D. Burn-Nunes L. J. Gabrielli P. Barbante C. Boutron C. F. Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
topic_facet |
Trace elements Pb isotopes Antarctic ice Climate change Mid-Brunhes Event geo envir |
description |
Trace elements (V, Cr, Mn, Fe, Co, Cu, Zn, As, Rb, Sr, Mo, Cd, Sb, Ba, Tl, Pb, Bi, Th and U) and Pb isotopic compositions from the EPICA (European Project for Ice Coring in Antarctica) Dome C ice core have been determined using inductively coupled plasma sector field mass spectrometry (ICP-SFMS) and thermal ionization mass spectrometry (TIMS), covering the period from ~533 kyr BP to ~800 kyr BP, respectively. Our data have enabled us to extend the previous EDC records of trace elements and Pb isotopes from the Holocene back to the Marine Isotopic Stage 20.2, ~800 kyr BP. We here discuss the EDC records of Ba, Rb, Mo, Sb, Cd, Tl, Bi and Pb isotopes. Crustal elements such as Ba and Rb show well defined variations in concentrations in relation to climatic conditions with lower values during the interglacial periods and much higher values during the coldest periods of the last eight climatic cycles. Volcanogenic Cd, Tl and Bi show a less pronounced relationship between concentrations and climatic conditions. The isotopic signatures of Pb suggest that changes in the provenance of dust reaching the East Antarctic Plateau from Potential Source Areas occurred during the interglacial periods before the MBE. Our data suggest that the main factors affecting deposition fluxes and sources of natural trace elements over Antarctica are most likely linked to a progressive coupling of the climates of Antarctica and lower latitudes over the past 800 kyr. |
format |
Article in Journal/Newspaper |
author |
Hong S. Han C. H. Hwang H. J. Soyol-Erdene T-O. Kang J. H. Hur S. D. Burn-Nunes L. J. Gabrielli P. Barbante C. Boutron C. F. |
author_facet |
Hong S. Han C. H. Hwang H. J. Soyol-Erdene T-O. Kang J. H. Hur S. D. Burn-Nunes L. J. Gabrielli P. Barbante C. Boutron C. F. |
author_sort |
Hong S. |
title |
Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
title_short |
Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
title_full |
Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
title_fullStr |
Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
title_full_unstemmed |
Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years |
title_sort |
trace elements and pb isotope records in dome c (east antarctica) ice over the past 800,000 years |
publisher |
EDP Sciences |
publishDate |
2013 |
url |
https://doi.org/10.1051/e3sconf/20130123001 https://doaj.org/article/c266d500cb2946e7b836df75dbd562b3 |
geographic |
Antarctic East Antarctica |
geographic_facet |
Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core |
op_source |
E3S Web of Conferences, Vol 1, p 23001 (2013) |
op_relation |
doi:10.1051/e3sconf/20130123001 2267-1242 https://doaj.org/article/c266d500cb2946e7b836df75dbd562b3 |
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op_doi |
https://doi.org/10.1051/e3sconf/20130123001 |
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E3S Web of Conferences |
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23001 |
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1766274609984831488 |