Note: Natural heavy-metal release by sulphide oxidation in the High Arctic
An assessment of the environmental impact of the weathering of sulphide-rich rocks at Citronen Fjord, North Greenland, provided information on sulphide oxidation rates and metal release from outcrops of sediment-hosted, stratiform ore that may be mined for its zinc content. In situ oxygen uptake rat...
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Language: | English |
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Canadian Science Publishing
1998
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Online Access: | http://dx.doi.org/10.1139/t98-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/t98-047 |
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crcansciencepubl:10.1139/t98-047 2024-09-15T18:09:43+00:00 Note: Natural heavy-metal release by sulphide oxidation in the High Arctic Elberling, Bo Langdahl, Bjarne Riis 1998 http://dx.doi.org/10.1139/t98-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/t98-047 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 35, issue 5, page 895-901 ISSN 0008-3674 1208-6010 journal-article 1998 crcansciencepubl https://doi.org/10.1139/t98-047 2024-07-04T04:10:00Z An assessment of the environmental impact of the weathering of sulphide-rich rocks at Citronen Fjord, North Greenland, provided information on sulphide oxidation rates and metal release from outcrops of sediment-hosted, stratiform ore that may be mined for its zinc content. In situ oxygen uptake rates were measured at the surface of partly weathered sulphide-rich outcrops and compared with metal contents in streams and soil water. The oxygen uptake rates measured during August 1996 were of the same order of magnitude as those reported from mine tailings at lower latitudes. The variation in metal concentrations and pH of the drainage waters reflects the spatial variation in sulphide oxidation and carbonate buffering. High weathering rates of sulphide minerals occur in the High Arctic during the summer, and release of heavy metals must be considered a potential environmental issue if mining is initiated.Key words: sulphide oxidation, pyrite, sphalerite, oxygen, High Arctic, zinc. Article in Journal/Newspaper Greenland North Greenland Canadian Science Publishing Canadian Geotechnical Journal 35 5 895 901 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
An assessment of the environmental impact of the weathering of sulphide-rich rocks at Citronen Fjord, North Greenland, provided information on sulphide oxidation rates and metal release from outcrops of sediment-hosted, stratiform ore that may be mined for its zinc content. In situ oxygen uptake rates were measured at the surface of partly weathered sulphide-rich outcrops and compared with metal contents in streams and soil water. The oxygen uptake rates measured during August 1996 were of the same order of magnitude as those reported from mine tailings at lower latitudes. The variation in metal concentrations and pH of the drainage waters reflects the spatial variation in sulphide oxidation and carbonate buffering. High weathering rates of sulphide minerals occur in the High Arctic during the summer, and release of heavy metals must be considered a potential environmental issue if mining is initiated.Key words: sulphide oxidation, pyrite, sphalerite, oxygen, High Arctic, zinc. |
format |
Article in Journal/Newspaper |
author |
Elberling, Bo Langdahl, Bjarne Riis |
spellingShingle |
Elberling, Bo Langdahl, Bjarne Riis Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
author_facet |
Elberling, Bo Langdahl, Bjarne Riis |
author_sort |
Elberling, Bo |
title |
Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
title_short |
Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
title_full |
Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
title_fullStr |
Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
title_full_unstemmed |
Note: Natural heavy-metal release by sulphide oxidation in the High Arctic |
title_sort |
note: natural heavy-metal release by sulphide oxidation in the high arctic |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/t98-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/t98-047 |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
Canadian Geotechnical Journal volume 35, issue 5, page 895-901 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t98-047 |
container_title |
Canadian Geotechnical Journal |
container_volume |
35 |
container_issue |
5 |
container_start_page |
895 |
op_container_end_page |
901 |
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1810447304425996288 |