LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell
Understanding of the uranium uptake processes (both in vivo and post-mortem) into the skeletal structures of marine calcifiers is a subject of multidisciplinary interest. U-concentration changes within the molluscan shell may serve as a paleoceanographic proxy of the pH history. A proxy of this type...
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2015
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ftsdunivir:oai:acikerisim.sdu.edu.tr:123456789/91903 2023-05-15T15:22:30+02:00 LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell Helama, Samuli Rinne, Katja Nielsen, Jan Kresten Nielsen, Jesper Kresten Heikkila, Pasi 2015-05-01T00:00:00Z http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/91903 https://doi.org/10.1007/s10661-015-4495-5 https://avesis.sdu.edu.tr/publication/details/54c679dc-9b22-4611-b209-8c5f6418a728/oai eng eng 54c679dc-9b22-4611-b209-8c5f6418a728 doi:10.1007/s10661-015-4495-5 https://avesis.sdu.edu.tr/publication/details/54c679dc-9b22-4611-b209-8c5f6418a728/oai http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/91903 info:eu-repo/semantics/closedAccess info:eu-repo/semantics/article 2015 ftsdunivir https://doi.org/10.1007/s10661-015-4495-5 2022-02-21T18:37:55Z Understanding of the uranium uptake processes (both in vivo and post-mortem) into the skeletal structures of marine calcifiers is a subject of multidisciplinary interest. U-concentration changes within the molluscan shell may serve as a paleoceanographic proxy of the pH history. A proxy of this type is needed to track the effects of fossil fuel emissions to ocean acidification. Moreover, attaining reliable U-series dates using shell materials would be a geochronological breakthrough. Picturing the high-resolution changes of U-concentrations in shell profiles is now possible by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Here, we analyzed in situ U-concentration variations in sub-fossilized shells of ocean quahog (Arctica islandica), a commonly studied bivalve species in Quaternary geoscience, using LA-ICP-MS. Microstructural details of the shell profiles were achieved by the scanning electron microscopy (SEM). Comparison of the shell aragonite microstructure with the changes in U-concentration revealed that uranium of possibly secondary origin is concentrated into the porous granular layers of the shell. Our results reinforce the hypothesis that U-concentration variations can be linked with microstructural differences within the shell. A combination of LA-ICP-MS and SEM analyses is recommended as an interesting approach for understanding the U-concentration variations in similar materials. Article in Journal/Newspaper Arctica islandica Ocean acidification Ocean quahog Suleyman Demirel University: DSpace Repository Environmental Monitoring and Assessment 187 5 |
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Open Polar |
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Suleyman Demirel University: DSpace Repository |
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ftsdunivir |
language |
English |
description |
Understanding of the uranium uptake processes (both in vivo and post-mortem) into the skeletal structures of marine calcifiers is a subject of multidisciplinary interest. U-concentration changes within the molluscan shell may serve as a paleoceanographic proxy of the pH history. A proxy of this type is needed to track the effects of fossil fuel emissions to ocean acidification. Moreover, attaining reliable U-series dates using shell materials would be a geochronological breakthrough. Picturing the high-resolution changes of U-concentrations in shell profiles is now possible by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Here, we analyzed in situ U-concentration variations in sub-fossilized shells of ocean quahog (Arctica islandica), a commonly studied bivalve species in Quaternary geoscience, using LA-ICP-MS. Microstructural details of the shell profiles were achieved by the scanning electron microscopy (SEM). Comparison of the shell aragonite microstructure with the changes in U-concentration revealed that uranium of possibly secondary origin is concentrated into the porous granular layers of the shell. Our results reinforce the hypothesis that U-concentration variations can be linked with microstructural differences within the shell. A combination of LA-ICP-MS and SEM analyses is recommended as an interesting approach for understanding the U-concentration variations in similar materials. |
format |
Article in Journal/Newspaper |
author |
Helama, Samuli Rinne, Katja Nielsen, Jan Kresten Nielsen, Jesper Kresten Heikkila, Pasi |
spellingShingle |
Helama, Samuli Rinne, Katja Nielsen, Jan Kresten Nielsen, Jesper Kresten Heikkila, Pasi LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
author_facet |
Helama, Samuli Rinne, Katja Nielsen, Jan Kresten Nielsen, Jesper Kresten Heikkila, Pasi |
author_sort |
Helama, Samuli |
title |
LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
title_short |
LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
title_full |
LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
title_fullStr |
LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
title_full_unstemmed |
LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell |
title_sort |
la-icp-ms-derived u-concentrations and microstructural domains within biogenic aragonite of arctica islandica shell |
publishDate |
2015 |
url |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/91903 https://doi.org/10.1007/s10661-015-4495-5 https://avesis.sdu.edu.tr/publication/details/54c679dc-9b22-4611-b209-8c5f6418a728/oai |
genre |
Arctica islandica Ocean acidification Ocean quahog |
genre_facet |
Arctica islandica Ocean acidification Ocean quahog |
op_relation |
54c679dc-9b22-4611-b209-8c5f6418a728 doi:10.1007/s10661-015-4495-5 https://avesis.sdu.edu.tr/publication/details/54c679dc-9b22-4611-b209-8c5f6418a728/oai http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/91903 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10661-015-4495-5 |
container_title |
Environmental Monitoring and Assessment |
container_volume |
187 |
container_issue |
5 |
_version_ |
1766353144451694592 |