Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice
We report silicon isotopic composition (δ30Si vs. NBS28) in Arctic sea ice, based on sampling of silicic acid from both brine and seawater in a small Greenlandic bay in March 2010. Our measurements show that just before the productive period, δ30Si of sea-ice brine similar to δ30Si of the underlying...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/183634 2023-05-15T13:46:28+02:00 Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice Fripiat, François Tison, Jean-Louis André, Luc Notz, Dirk Delille, Bruno 2014 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/183634 en eng uri/info:doi/10.1007/s10533-013-9911-8 uri/info:scp/84900526914 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/183634 Biogeochemistry, 119 (1-3 Géologie et minéralogie Technologie de l'environnement contrôle de la pollution Traitement des eaux résiduaires Traitement de potabilisation de l'eau Biogenic silica dissolution Biogenic silica production Nutrient cycles Sea ice Silicon info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2014 ftunivbruxelles 2022-06-12T21:02:15Z We report silicon isotopic composition (δ30Si vs. NBS28) in Arctic sea ice, based on sampling of silicic acid from both brine and seawater in a small Greenlandic bay in March 2010. Our measurements show that just before the productive period, δ30Si of sea-ice brine similar to δ30Si of the underlying seawater. Hence, there is no Si isotopic fractionation during sea-ice growth by physical processes such as brine convection. This finding brings credit and support to the conclusions of previous work on the impact of biogenic processes on sea ice δ30Si: any δ30Si change results from a combination of biogenic silica production and dissolution. We use this insight to interpret data from an earlier study of sea-ice δ30Si in Antarctic pack ice that show a large accumulation of biogenic silica. Based on these data, we estimate a significant contribution of biogenic silica dissolution (D) to production (P), with a D:P ratio between 0.4 and 0.9. This finding has significant implications for the understanding and parameterization of the sea ice Si-biogeochemical cycle, i.e. previous studies assumed little or no biogenic silica dissolution in sea ice. © 2013 Springer Science+Business Media Dordrecht. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Arctic greenlandic Sea ice DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Arctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Géologie et minéralogie Technologie de l'environnement contrôle de la pollution Traitement des eaux résiduaires Traitement de potabilisation de l'eau Biogenic silica dissolution Biogenic silica production Nutrient cycles Sea ice Silicon |
spellingShingle |
Géologie et minéralogie Technologie de l'environnement contrôle de la pollution Traitement des eaux résiduaires Traitement de potabilisation de l'eau Biogenic silica dissolution Biogenic silica production Nutrient cycles Sea ice Silicon Fripiat, François Tison, Jean-Louis André, Luc Notz, Dirk Delille, Bruno Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
topic_facet |
Géologie et minéralogie Technologie de l'environnement contrôle de la pollution Traitement des eaux résiduaires Traitement de potabilisation de l'eau Biogenic silica dissolution Biogenic silica production Nutrient cycles Sea ice Silicon |
description |
We report silicon isotopic composition (δ30Si vs. NBS28) in Arctic sea ice, based on sampling of silicic acid from both brine and seawater in a small Greenlandic bay in March 2010. Our measurements show that just before the productive period, δ30Si of sea-ice brine similar to δ30Si of the underlying seawater. Hence, there is no Si isotopic fractionation during sea-ice growth by physical processes such as brine convection. This finding brings credit and support to the conclusions of previous work on the impact of biogenic processes on sea ice δ30Si: any δ30Si change results from a combination of biogenic silica production and dissolution. We use this insight to interpret data from an earlier study of sea-ice δ30Si in Antarctic pack ice that show a large accumulation of biogenic silica. Based on these data, we estimate a significant contribution of biogenic silica dissolution (D) to production (P), with a D:P ratio between 0.4 and 0.9. This finding has significant implications for the understanding and parameterization of the sea ice Si-biogeochemical cycle, i.e. previous studies assumed little or no biogenic silica dissolution in sea ice. © 2013 Springer Science+Business Media Dordrecht. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Fripiat, François Tison, Jean-Louis André, Luc Notz, Dirk Delille, Bruno |
author_facet |
Fripiat, François Tison, Jean-Louis André, Luc Notz, Dirk Delille, Bruno |
author_sort |
Fripiat, François |
title |
Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
title_short |
Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
title_full |
Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
title_fullStr |
Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
title_full_unstemmed |
Biogenic silica recycling in sea ice inferred from Si-isotopes: Constraints from Arctic winter first-year sea ice |
title_sort |
biogenic silica recycling in sea ice inferred from si-isotopes: constraints from arctic winter first-year sea ice |
publishDate |
2014 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/183634 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic greenlandic Sea ice |
genre_facet |
Antarc* Antarctic Arctic greenlandic Sea ice |
op_source |
Biogeochemistry, 119 (1-3 |
op_relation |
uri/info:doi/10.1007/s10533-013-9911-8 uri/info:scp/84900526914 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/183634 |
_version_ |
1766243064318263296 |