Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica)
Until recently, little was known about trace metals in the Southern Ocean. Vertical profiles and surface water sections along 49°W exhibit Cd concentrations of 0.2–0.8 nM, increasing with depth, as for phosphate. A linear relationship between Cd and phosphate exists as in other oceans; however, the...
Published in: | Marine Chemistry |
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Language: | English |
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1991
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Online Access: | https://hdl.handle.net/11370/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://research.rug.nl/en/publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://doi.org/10.1016/S0304-4203(09)90019-6 https://pure.rug.nl/ws/files/14507434/1991MarChemNolting.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 2024-01-21T10:01:19+01:00 Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) Nolting, R.F. de Baar, H.J.W. Bennekom, A.J. van Masson, A. 1991 application/pdf https://hdl.handle.net/11370/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://research.rug.nl/en/publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://doi.org/10.1016/S0304-4203(09)90019-6 https://pure.rug.nl/ws/files/14507434/1991MarChemNolting.pdf eng eng https://research.rug.nl/en/publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 info:eu-repo/semantics/openAccess Nolting , R F , de Baar , H J W , Bennekom , A J V & Masson , A 1991 , ' Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) ' , Marine Chemistry , vol. 35 , no. 1 , pp. 219-243 . https://doi.org/10.1016/S0304-4203(09)90019-6 article 1991 ftunigroningenpu https://doi.org/10.1016/S0304-4203(09)90019-6 2023-12-27T23:08:15Z Until recently, little was known about trace metals in the Southern Ocean. Vertical profiles and surface water sections along 49°W exhibit Cd concentrations of 0.2–0.8 nM, increasing with depth, as for phosphate. A linear relationship between Cd and phosphate exists as in other oceans; however, the Cd/P slope at about 0.63–0.65 nM μM−1 is much higher than the generally assumed global deep water ratio of about 0.35–0.4 nM μM−1. Dissolved Cu levels range from 1 to 4 nM, increasing with depth, as for silicate. The linear relationship between Cu and silicate shows the same linear trend as in the North Atlantic Ocean, except for the shallow (less than 100 m) Antarctic waters. The South Orkneys shelf appears to be a source of dissolved Cu. Dissolved Fe levels range from 2 to 8 nM in the surface waters. Deep water Fe levels are similar. Over the South Orkneys shelf dissolved Fe is an order of magnitude higher (about 60 nM). Shelf sediments appear to be a major source for Fe; transport of weathered material by ice(bergs) may also contribute Fe to seawater. Article in Journal/Newspaper Antarc* Antarctic Antarctica North Atlantic Scotia Sea Southern Ocean Weddell Sea University of Groningen research database Antarctic Scotia Sea Southern Ocean Weddell Weddell Sea Marine Chemistry 35 1-4 219 243 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
Until recently, little was known about trace metals in the Southern Ocean. Vertical profiles and surface water sections along 49°W exhibit Cd concentrations of 0.2–0.8 nM, increasing with depth, as for phosphate. A linear relationship between Cd and phosphate exists as in other oceans; however, the Cd/P slope at about 0.63–0.65 nM μM−1 is much higher than the generally assumed global deep water ratio of about 0.35–0.4 nM μM−1. Dissolved Cu levels range from 1 to 4 nM, increasing with depth, as for silicate. The linear relationship between Cu and silicate shows the same linear trend as in the North Atlantic Ocean, except for the shallow (less than 100 m) Antarctic waters. The South Orkneys shelf appears to be a source of dissolved Cu. Dissolved Fe levels range from 2 to 8 nM in the surface waters. Deep water Fe levels are similar. Over the South Orkneys shelf dissolved Fe is an order of magnitude higher (about 60 nM). Shelf sediments appear to be a major source for Fe; transport of weathered material by ice(bergs) may also contribute Fe to seawater. |
format |
Article in Journal/Newspaper |
author |
Nolting, R.F. de Baar, H.J.W. Bennekom, A.J. van Masson, A. |
spellingShingle |
Nolting, R.F. de Baar, H.J.W. Bennekom, A.J. van Masson, A. Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
author_facet |
Nolting, R.F. de Baar, H.J.W. Bennekom, A.J. van Masson, A. |
author_sort |
Nolting, R.F. |
title |
Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
title_short |
Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
title_full |
Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
title_fullStr |
Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
title_full_unstemmed |
Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) |
title_sort |
cadmium, copper and iron in the scotia sea, weddell sea and weddell/scotia confluence (antarctica) |
publishDate |
1991 |
url |
https://hdl.handle.net/11370/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://research.rug.nl/en/publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 https://doi.org/10.1016/S0304-4203(09)90019-6 https://pure.rug.nl/ws/files/14507434/1991MarChemNolting.pdf |
geographic |
Antarctic Scotia Sea Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Scotia Sea Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica North Atlantic Scotia Sea Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica North Atlantic Scotia Sea Southern Ocean Weddell Sea |
op_source |
Nolting , R F , de Baar , H J W , Bennekom , A J V & Masson , A 1991 , ' Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica) ' , Marine Chemistry , vol. 35 , no. 1 , pp. 219-243 . https://doi.org/10.1016/S0304-4203(09)90019-6 |
op_relation |
https://research.rug.nl/en/publications/fc668f76-eee0-4e76-91c7-1e6ee8863b94 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/S0304-4203(09)90019-6 |
container_title |
Marine Chemistry |
container_volume |
35 |
container_issue |
1-4 |
container_start_page |
219 |
op_container_end_page |
243 |
_version_ |
1788691164043411456 |