Trace metals in the waters of the Saguenay fjord
The distributions of the trace metals iron, zinc, copper, nickel, cobalt, and cadmium in the Saguenay fjord have been determined during the spring freshet. Whereas the mean concentrations of copper, nickel, and zinc are only slightly higher than those in the northwest Atlantic Ocean, the levels of c...
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Language: | English |
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Canadian Science Publishing
1976
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Online Access: | http://dx.doi.org/10.1139/e76-133 http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-133 |
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crcansciencepubl:10.1139/e76-133 2024-04-07T07:54:56+00:00 Trace metals in the waters of the Saguenay fjord Yeats, P. A. Bewers, J. M. 1976 http://dx.doi.org/10.1139/e76-133 http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-133 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 13, issue 9, page 1319-1327 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1976 crcansciencepubl https://doi.org/10.1139/e76-133 2024-03-08T00:37:42Z The distributions of the trace metals iron, zinc, copper, nickel, cobalt, and cadmium in the Saguenay fjord have been determined during the spring freshet. Whereas the mean concentrations of copper, nickel, and zinc are only slightly higher than those in the northwest Atlantic Ocean, the levels of cadmium and cobalt are about three to six times higher, and iron up to two orders of magnitude higher, than ocean water. The significant enrichment of all these metals, with the exceptions of zinc and cadmium, in the surface water relative to the intermediate depth water reflects runoff inputs. The concentrations of total and dissolved iron decrease with increasing salinity, but the nonlinearity of the relationships between the metal concentrations and salinity indicates that significant quantities of iron are lost from the water column in the fjord. Except near the head of the fjord, where flocculation and sedimentation processes appear to be removing large quantities of river-borne iron, iron comprises a constant 11% of the suspended particulate matter. The residence time and budget for iron in the larger western basin of the fjord indicate that 47% of the iron that enters the basin is rapidly removed to the underlying sediments. Article in Journal/Newspaper Northwest Atlantic Canadian Science Publishing Western Basin Canadian Journal of Earth Sciences 13 9 1319 1327 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Yeats, P. A. Bewers, J. M. Trace metals in the waters of the Saguenay fjord |
topic_facet |
General Earth and Planetary Sciences |
description |
The distributions of the trace metals iron, zinc, copper, nickel, cobalt, and cadmium in the Saguenay fjord have been determined during the spring freshet. Whereas the mean concentrations of copper, nickel, and zinc are only slightly higher than those in the northwest Atlantic Ocean, the levels of cadmium and cobalt are about three to six times higher, and iron up to two orders of magnitude higher, than ocean water. The significant enrichment of all these metals, with the exceptions of zinc and cadmium, in the surface water relative to the intermediate depth water reflects runoff inputs. The concentrations of total and dissolved iron decrease with increasing salinity, but the nonlinearity of the relationships between the metal concentrations and salinity indicates that significant quantities of iron are lost from the water column in the fjord. Except near the head of the fjord, where flocculation and sedimentation processes appear to be removing large quantities of river-borne iron, iron comprises a constant 11% of the suspended particulate matter. The residence time and budget for iron in the larger western basin of the fjord indicate that 47% of the iron that enters the basin is rapidly removed to the underlying sediments. |
format |
Article in Journal/Newspaper |
author |
Yeats, P. A. Bewers, J. M. |
author_facet |
Yeats, P. A. Bewers, J. M. |
author_sort |
Yeats, P. A. |
title |
Trace metals in the waters of the Saguenay fjord |
title_short |
Trace metals in the waters of the Saguenay fjord |
title_full |
Trace metals in the waters of the Saguenay fjord |
title_fullStr |
Trace metals in the waters of the Saguenay fjord |
title_full_unstemmed |
Trace metals in the waters of the Saguenay fjord |
title_sort |
trace metals in the waters of the saguenay fjord |
publisher |
Canadian Science Publishing |
publishDate |
1976 |
url |
http://dx.doi.org/10.1139/e76-133 http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-133 |
geographic |
Western Basin |
geographic_facet |
Western Basin |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Canadian Journal of Earth Sciences volume 13, issue 9, page 1319-1327 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e76-133 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
13 |
container_issue |
9 |
container_start_page |
1319 |
op_container_end_page |
1327 |
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1795671788197249024 |