Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica
AbstractA selection of elements (Bi, Ca, Cd, Co, Cu, Mn, Na, Sr, U, V, Zn) were measured by high-resolution inductively coupled plasma sector-field mass spectrometry in firn- and ice-core samples from Law Dome, Antarctica, corresponding to the period 4500 BC to AD 1989. Concentrations of rock dust a...
Published in: | Annals of Glaciology |
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ftopenaccessrep:oai:zenodo.org:121959 2023-10-29T02:32:03+01:00 Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica Jean-Pierre Candelone Kevin J.R. Rosman V. Morgan Vania Gaspari K. Van de Velde G. Cozzi Paolo Cescon Paul Vallelonga Claude F. Boutron Carlo Barbante 2004-01-01 https://www.openaccessrepository.it/record/121959 https://doi.org/10.3189/172756404781814483 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/121959 doi:10.3189/172756404781814483 info:eu-repo/semantics/openAccess EUTOPIA Alliance NEANIAS Atmospheric Research Community Earth-Surface Processes info:eu-repo/semantics/article publication-article 2004 ftopenaccessrep https://doi.org/10.3189/172756404781814483 2023-10-03T22:17:06Z AbstractA selection of elements (Bi, Ca, Cd, Co, Cu, Mn, Na, Sr, U, V, Zn) were measured by high-resolution inductively coupled plasma sector-field mass spectrometry in firn- and ice-core samples from Law Dome, Antarctica, corresponding to the period 4500 BC to AD 1989. Concentrations of rock dust and sea salts were calculated for each sample and then used to determine concentrations of each element originating from crustal and marine aerosol emissions, respectively. Where calculated contributions from crustal and marine aerosol sources failed to account for the total measured concentration of an element, the remainder was apportioned to volcanic and/or anthropogenic sources and defined as an enrichment. On this basis, it was determined that Bi and Cd concentrations in Law Dome ice are overwhelmingly influenced by volcanic emissions (enrichments 150–250x crustal and marine inputs); Co, Cu, Pb and Zn concentrations in Law Dome ice are largely influenced by volcanic emissions (enrichments 16–36x crustal and marine inputs); and Mn, Sr, U and V concentrations in Law Dome ice are minimally influenced by volcanic emissions (enrichments 1.5–4x crustal and marine inputs). During the 20th century, enrichments of Pb and Cu concentrations were observed to be greater than in earlier centuries, consistent with increasing anthropogenic emissions of Pb and Cu in the Southern Hemisphere over that period. Article in Journal/Newspaper Antarc* Antarctica ice core Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Annals of Glaciology 39 169 174 |
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Open Polar |
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Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
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ftopenaccessrep |
language |
English |
topic |
EUTOPIA Alliance NEANIAS Atmospheric Research Community Earth-Surface Processes |
spellingShingle |
EUTOPIA Alliance NEANIAS Atmospheric Research Community Earth-Surface Processes Jean-Pierre Candelone Kevin J.R. Rosman V. Morgan Vania Gaspari K. Van de Velde G. Cozzi Paolo Cescon Paul Vallelonga Claude F. Boutron Carlo Barbante Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
topic_facet |
EUTOPIA Alliance NEANIAS Atmospheric Research Community Earth-Surface Processes |
description |
AbstractA selection of elements (Bi, Ca, Cd, Co, Cu, Mn, Na, Sr, U, V, Zn) were measured by high-resolution inductively coupled plasma sector-field mass spectrometry in firn- and ice-core samples from Law Dome, Antarctica, corresponding to the period 4500 BC to AD 1989. Concentrations of rock dust and sea salts were calculated for each sample and then used to determine concentrations of each element originating from crustal and marine aerosol emissions, respectively. Where calculated contributions from crustal and marine aerosol sources failed to account for the total measured concentration of an element, the remainder was apportioned to volcanic and/or anthropogenic sources and defined as an enrichment. On this basis, it was determined that Bi and Cd concentrations in Law Dome ice are overwhelmingly influenced by volcanic emissions (enrichments 150–250x crustal and marine inputs); Co, Cu, Pb and Zn concentrations in Law Dome ice are largely influenced by volcanic emissions (enrichments 16–36x crustal and marine inputs); and Mn, Sr, U and V concentrations in Law Dome ice are minimally influenced by volcanic emissions (enrichments 1.5–4x crustal and marine inputs). During the 20th century, enrichments of Pb and Cu concentrations were observed to be greater than in earlier centuries, consistent with increasing anthropogenic emissions of Pb and Cu in the Southern Hemisphere over that period. |
format |
Article in Journal/Newspaper |
author |
Jean-Pierre Candelone Kevin J.R. Rosman V. Morgan Vania Gaspari K. Van de Velde G. Cozzi Paolo Cescon Paul Vallelonga Claude F. Boutron Carlo Barbante |
author_facet |
Jean-Pierre Candelone Kevin J.R. Rosman V. Morgan Vania Gaspari K. Van de Velde G. Cozzi Paolo Cescon Paul Vallelonga Claude F. Boutron Carlo Barbante |
author_sort |
Jean-Pierre Candelone |
title |
Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
title_short |
Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
title_full |
Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
title_fullStr |
Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
title_full_unstemmed |
Elemental indicators of natural and anthropogenic aerosol inputs to Law Dome, Antarctica |
title_sort |
elemental indicators of natural and anthropogenic aerosol inputs to law dome, antarctica |
publishDate |
2004 |
url |
https://www.openaccessrepository.it/record/121959 https://doi.org/10.3189/172756404781814483 |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/121959 doi:10.3189/172756404781814483 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3189/172756404781814483 |
container_title |
Annals of Glaciology |
container_volume |
39 |
container_start_page |
169 |
op_container_end_page |
174 |
_version_ |
1781053084589359104 |