Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean
The Canadian Basin of the Arctic Ocean, largely ice covered and isolated from deep contact with the more dynamic Eurasian Basin by the Lomonosov Ridge, has historically been considered an area of low productivity and particle flux and sluggish circulation. High-sensitivity mass-spectrometric measure...
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American Association for the Advancement of Science (AAAS)
1998
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Online Access: | http://dx.doi.org/10.1126/science.280.5362.405 https://www.science.org/doi/pdf/10.1126/science.280.5362.405 |
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craaas:10.1126/science.280.5362.405 2024-09-15T17:53:11+00:00 Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean Edmonds, Henrietta N. Moran, S. Bradley Hoff, John A. Smith, John N. Edwards, R. Lawrence 1998 http://dx.doi.org/10.1126/science.280.5362.405 https://www.science.org/doi/pdf/10.1126/science.280.5362.405 en eng American Association for the Advancement of Science (AAAS) Science volume 280, issue 5362, page 405-407 ISSN 0036-8075 1095-9203 journal-article 1998 craaas https://doi.org/10.1126/science.280.5362.405 2024-08-08T04:01:13Z The Canadian Basin of the Arctic Ocean, largely ice covered and isolated from deep contact with the more dynamic Eurasian Basin by the Lomonosov Ridge, has historically been considered an area of low productivity and particle flux and sluggish circulation. High-sensitivity mass-spectrometric measurements of the naturally occurring radionuclides protactinium-231 and thorium-230 in the deep Canada Basin and on the adjacent shelf indicate high particle fluxes and scavenging rates in this region. The thorium-232 data suggest that offshore advection of particulate material from the shelves contributes to scavenging of reactive materials in areas of permanent ice cover. Article in Journal/Newspaper Arctic Ocean canada basin Lomonosov Ridge AAAS Resource Center (American Association for the Advancement of Science) Science 280 5362 405 407 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
The Canadian Basin of the Arctic Ocean, largely ice covered and isolated from deep contact with the more dynamic Eurasian Basin by the Lomonosov Ridge, has historically been considered an area of low productivity and particle flux and sluggish circulation. High-sensitivity mass-spectrometric measurements of the naturally occurring radionuclides protactinium-231 and thorium-230 in the deep Canada Basin and on the adjacent shelf indicate high particle fluxes and scavenging rates in this region. The thorium-232 data suggest that offshore advection of particulate material from the shelves contributes to scavenging of reactive materials in areas of permanent ice cover. |
format |
Article in Journal/Newspaper |
author |
Edmonds, Henrietta N. Moran, S. Bradley Hoff, John A. Smith, John N. Edwards, R. Lawrence |
spellingShingle |
Edmonds, Henrietta N. Moran, S. Bradley Hoff, John A. Smith, John N. Edwards, R. Lawrence Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
author_facet |
Edmonds, Henrietta N. Moran, S. Bradley Hoff, John A. Smith, John N. Edwards, R. Lawrence |
author_sort |
Edmonds, Henrietta N. |
title |
Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
title_short |
Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
title_full |
Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
title_fullStr |
Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
title_full_unstemmed |
Protactinium-231 and Thorium-230 Abundances and High Scavenging Rates in the Western Arctic Ocean |
title_sort |
protactinium-231 and thorium-230 abundances and high scavenging rates in the western arctic ocean |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1126/science.280.5362.405 https://www.science.org/doi/pdf/10.1126/science.280.5362.405 |
genre |
Arctic Ocean canada basin Lomonosov Ridge |
genre_facet |
Arctic Ocean canada basin Lomonosov Ridge |
op_source |
Science volume 280, issue 5362, page 405-407 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.280.5362.405 |
container_title |
Science |
container_volume |
280 |
container_issue |
5362 |
container_start_page |
405 |
op_container_end_page |
407 |
_version_ |
1810295177037742080 |