Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport
Measurements of delta(34)S covering the years 1935-76 and including the 1963 Agung (Indonesia) eruption were made on a West Antarctic firn core, RIDSA (78.73 degrees S, 116.33 degrees W; 1740m a.s.l.), and results are used to unravel potential source functions in the sulfur cycle over West Antarctic...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1143 2024-09-15T17:47:57+00:00 Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport Pruett, Lee E. Kreutz, Karl J. Wadleigh, Moire Mayewski, Paul Andrew Kurbatov, Andrei V. 2004-01-01T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/144 https://doi.org/10.3189/172756404781814339 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1143/viewcontent/kruetz_39_161_168.pdf unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/144 doi:10.3189/172756404781814339 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1143/viewcontent/kruetz_39_161_168.pdf This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Earth Science Faculty Scholarship Earth Sciences text 2004 ftmaineuniv https://doi.org/10.3189/172756404781814339 2024-07-24T05:38:40Z Measurements of delta(34)S covering the years 1935-76 and including the 1963 Agung (Indonesia) eruption were made on a West Antarctic firn core, RIDSA (78.73 degrees S, 116.33 degrees W; 1740m a.s.l.), and results are used to unravel potential source functions in the sulfur cycle over West Antarctica. The delta(34)S values Of SO42- range from 3.1 parts per thousand to 9.9 parts per thousand. These values are lower than those reported for central Antarctica, from near South Pole station, of 9.3-18.1 parts per thousand (Patris and others, 2000). While the Agung period is isotopically distinct at South Pole, it is not in the RIDSA dataset, suggesting differences in the source associations for the sulfur cycle between these two regions. Given the relatively large input of marine aerosols at RIDSA (determined from Na+ data and the seasonal SO42- cycle), there is likely a large marine biogenic SO42- influence. The delta(34)S values indicate, however, that this marine biogenic SO42-, with a well-established delta(34)S of 18 parts per thousand, is mixing with SO42- that has extremely negative delta(34)S values to produce the measured isotope values in the RIDSA core. We suggest that the transport and deposition of stratospheric SO42- in West Antarctica, combined with local volcanic input, accounts for the observed variance in delta(34)S values. Text Antarc* Antarctic Antarctica ice core South pole South pole West Antarctica The University of Maine: DigitalCommons@UMaine Annals of Glaciology 39 161 168 |
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The University of Maine: DigitalCommons@UMaine |
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ftmaineuniv |
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topic |
Earth Sciences |
spellingShingle |
Earth Sciences Pruett, Lee E. Kreutz, Karl J. Wadleigh, Moire Mayewski, Paul Andrew Kurbatov, Andrei V. Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
topic_facet |
Earth Sciences |
description |
Measurements of delta(34)S covering the years 1935-76 and including the 1963 Agung (Indonesia) eruption were made on a West Antarctic firn core, RIDSA (78.73 degrees S, 116.33 degrees W; 1740m a.s.l.), and results are used to unravel potential source functions in the sulfur cycle over West Antarctica. The delta(34)S values Of SO42- range from 3.1 parts per thousand to 9.9 parts per thousand. These values are lower than those reported for central Antarctica, from near South Pole station, of 9.3-18.1 parts per thousand (Patris and others, 2000). While the Agung period is isotopically distinct at South Pole, it is not in the RIDSA dataset, suggesting differences in the source associations for the sulfur cycle between these two regions. Given the relatively large input of marine aerosols at RIDSA (determined from Na+ data and the seasonal SO42- cycle), there is likely a large marine biogenic SO42- influence. The delta(34)S values indicate, however, that this marine biogenic SO42-, with a well-established delta(34)S of 18 parts per thousand, is mixing with SO42- that has extremely negative delta(34)S values to produce the measured isotope values in the RIDSA core. We suggest that the transport and deposition of stratospheric SO42- in West Antarctica, combined with local volcanic input, accounts for the observed variance in delta(34)S values. |
format |
Text |
author |
Pruett, Lee E. Kreutz, Karl J. Wadleigh, Moire Mayewski, Paul Andrew Kurbatov, Andrei V. |
author_facet |
Pruett, Lee E. Kreutz, Karl J. Wadleigh, Moire Mayewski, Paul Andrew Kurbatov, Andrei V. |
author_sort |
Pruett, Lee E. |
title |
Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
title_short |
Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
title_full |
Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
title_fullStr |
Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
title_full_unstemmed |
Sulfur Isotopic Measurements from a West Antarctic Ice Core: Implications for Sulfate Source and Transport |
title_sort |
sulfur isotopic measurements from a west antarctic ice core: implications for sulfate source and transport |
publisher |
DigitalCommons@UMaine |
publishDate |
2004 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/144 https://doi.org/10.3189/172756404781814339 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1143/viewcontent/kruetz_39_161_168.pdf |
genre |
Antarc* Antarctic Antarctica ice core South pole South pole West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica ice core South pole South pole West Antarctica |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/144 doi:10.3189/172756404781814339 https://digitalcommons.library.umaine.edu/context/ers_facpub/article/1143/viewcontent/kruetz_39_161_168.pdf |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
op_doi |
https://doi.org/10.3189/172756404781814339 |
container_title |
Annals of Glaciology |
container_volume |
39 |
container_start_page |
161 |
op_container_end_page |
168 |
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1810497702789644288 |