The occurrence of zinc in Antarctic ancient ice and recent snow
Concentrations of zinc (Zn) have been measured in various sections of the Dome C and Vostok deep Antarctic ice cores, whose ages range from 3850 to 155,000 years BP, and in several large-size surface Antarctic snow blocks collected in Adelie Land and at the geographic South Pole. All the samples wer...
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ftcaltechauth:oai:authors.library.caltech.edu:45895 2023-05-15T13:04:17+02:00 The occurrence of zinc in Antarctic ancient ice and recent snow Boutron, Claude F. Patterson, Clair C. Barkov, N. I. 1990-12 https://authors.library.caltech.edu/45895/ https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711 unknown Elsevier Boutron, Claude F. and Patterson, Clair C. and Barkov, N. I. (1990) The occurrence of zinc in Antarctic ancient ice and recent snow. Earth and Planetary Science Letters, 101 (2-4). pp. 248-259. ISSN 0012-821X. doi:10.1016/0012-821X(90)90157-S. https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711 <https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711> Article PeerReviewed 1990 ftcaltechauth https://doi.org/10.1016/0012-821X(90)90157-S 2021-11-11T18:57:51Z Concentrations of zinc (Zn) have been measured in various sections of the Dome C and Vostok deep Antarctic ice cores, whose ages range from 3850 to 155,000 years BP, and in several large-size surface Antarctic snow blocks collected in Adelie Land and at the geographic South Pole. All the samples were mechanically decontaminated, and detailed outside-inside variation profiles were drawn for most of them then allowing us to clearly establish the accuracy of the data obtained from the analysis of the most central parts of each individual core section or snow block. Natural Zn concentrations are found to have strongly varied in Antarctic ice during the past 155,000 years, the highest values (up to about 100 pg Zn/g) being observed during the Last Glacial Maximum and possibly during the end of the next to last ice age. Wind-blown dust from crustal rock and soil appears to be the main natural source of Zn during the glacial periods, especially the Last Glacial Maximum. Zn concentrations in present-day Antarctic snow from central East Antarctica, about 5 pg Zn/g, are found to be comparable with those in Holocene ice several thousand years old, which evidences that the Antarctic tropospheric cell is still little affected by anthropogenic Zn. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica East Antarctica South pole South pole Caltech Authors (California Institute of Technology) Antarctic East Antarctica South Pole The Antarctic Earth and Planetary Science Letters 101 2-4 248 259 |
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Caltech Authors (California Institute of Technology) |
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Concentrations of zinc (Zn) have been measured in various sections of the Dome C and Vostok deep Antarctic ice cores, whose ages range from 3850 to 155,000 years BP, and in several large-size surface Antarctic snow blocks collected in Adelie Land and at the geographic South Pole. All the samples were mechanically decontaminated, and detailed outside-inside variation profiles were drawn for most of them then allowing us to clearly establish the accuracy of the data obtained from the analysis of the most central parts of each individual core section or snow block. Natural Zn concentrations are found to have strongly varied in Antarctic ice during the past 155,000 years, the highest values (up to about 100 pg Zn/g) being observed during the Last Glacial Maximum and possibly during the end of the next to last ice age. Wind-blown dust from crustal rock and soil appears to be the main natural source of Zn during the glacial periods, especially the Last Glacial Maximum. Zn concentrations in present-day Antarctic snow from central East Antarctica, about 5 pg Zn/g, are found to be comparable with those in Holocene ice several thousand years old, which evidences that the Antarctic tropospheric cell is still little affected by anthropogenic Zn. |
format |
Article in Journal/Newspaper |
author |
Boutron, Claude F. Patterson, Clair C. Barkov, N. I. |
spellingShingle |
Boutron, Claude F. Patterson, Clair C. Barkov, N. I. The occurrence of zinc in Antarctic ancient ice and recent snow |
author_facet |
Boutron, Claude F. Patterson, Clair C. Barkov, N. I. |
author_sort |
Boutron, Claude F. |
title |
The occurrence of zinc in Antarctic ancient ice and recent snow |
title_short |
The occurrence of zinc in Antarctic ancient ice and recent snow |
title_full |
The occurrence of zinc in Antarctic ancient ice and recent snow |
title_fullStr |
The occurrence of zinc in Antarctic ancient ice and recent snow |
title_full_unstemmed |
The occurrence of zinc in Antarctic ancient ice and recent snow |
title_sort |
occurrence of zinc in antarctic ancient ice and recent snow |
publisher |
Elsevier |
publishDate |
1990 |
url |
https://authors.library.caltech.edu/45895/ https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711 |
geographic |
Antarctic East Antarctica South Pole The Antarctic |
geographic_facet |
Antarctic East Antarctica South Pole The Antarctic |
genre |
Adelie Land Antarc* Antarctic Antarctica East Antarctica South pole South pole |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica East Antarctica South pole South pole |
op_relation |
Boutron, Claude F. and Patterson, Clair C. and Barkov, N. I. (1990) The occurrence of zinc in Antarctic ancient ice and recent snow. Earth and Planetary Science Letters, 101 (2-4). pp. 248-259. ISSN 0012-821X. doi:10.1016/0012-821X(90)90157-S. https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711 <https://resolver.caltech.edu/CaltechAUTHORS:20140523-090114711> |
op_doi |
https://doi.org/10.1016/0012-821X(90)90157-S |
container_title |
Earth and Planetary Science Letters |
container_volume |
101 |
container_issue |
2-4 |
container_start_page |
248 |
op_container_end_page |
259 |
_version_ |
1766356556317720576 |