An experimental study of basalt–seawater–CO2 interaction at 130 °C
International audience Over millions of years, the interaction of marine basalt with percolating seawater in low-temperature ocean floor hydrothermal systems leads to the formation of calcite and aragonite. The presence of these minerals in marine basalts provides evidence for substantial CO2 fixati...
Published in: | Geochimica et Cosmochimica Acta |
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Online Access: | https://hal.archives-ouvertes.fr/hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372/document https://hal.archives-ouvertes.fr/hal-03388372/file/voigt.seawater.final.pdf https://doi.org/10.1016/j.gca.2021.05.056 |
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ftccsdartic:oai:HAL:hal-03388372v1 2023-05-15T16:51:30+02:00 An experimental study of basalt–seawater–CO2 interaction at 130 °C Voigt, Martin Marieni, Chiara Baldermann, Andre Galeczka, Iwona, Wolff-Boenisch, Domenik Oelkers, Eric, Gislason, Sigurdur Institute of Earth Sciences University of Iceland University of Iceland Reykjavik Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Science Institute, University of Iceland 2021-09 https://hal.archives-ouvertes.fr/hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372/document https://hal.archives-ouvertes.fr/hal-03388372/file/voigt.seawater.final.pdf https://doi.org/10.1016/j.gca.2021.05.056 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2021.05.056 hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372/document https://hal.archives-ouvertes.fr/hal-03388372/file/voigt.seawater.final.pdf doi:10.1016/j.gca.2021.05.056 info:eu-repo/semantics/OpenAccess ISSN: 0016-7037 EISSN: 0016-7037 Geochimica et Cosmochimica Acta https://hal.archives-ouvertes.fr/hal-03388372 Geochimica et Cosmochimica Acta, Elsevier, 2021, 308, pp.21-41. ⟨10.1016/j.gca.2021.05.056⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.1016/j.gca.2021.05.056 2021-11-20T23:38:49Z International audience Over millions of years, the interaction of marine basalt with percolating seawater in low-temperature ocean floor hydrothermal systems leads to the formation of calcite and aragonite. The presence of these minerals in marine basalts provides evidence for substantial CO2 fixation in these rocks. Here, we report on laboratory experiments to study this process under enhanced CO2 partial pressures (pCO2) at 130 °C. Mid-ocean-ridge-basalt (MORB) glass was reacted with North Atlantic Seawater charged with CO2 in batch experiments lasting up to 7 months. For experiments initiated with seawater charged with ~ 2.5 bar pCO2, calcite and aragonite are the first carbonate minerals to form, later followed by only aragonite (± siderite and ankerite). For experiments initiated with seawater charged with ~ 16 bar pCO2, magnesite was the only carbonate mineral observed to form. In total, approximately 20 % of the initial CO2 in the reactors was mineralized within five months. This carbonation rate is similar to corresponding rates observed in freshwater-basalt-CO2 interaction experiments and during field experiments of the carbonation of basalts in response to CO2-charged freshwater injections in SW-Iceland. Our experiments thus suggest that CO2-charged seawater injected into submarine basalts will lead to rapid CO2 mineralization. Notably, at pCO2 of tens of bars, magnesite will form, limiting the formation of Mg-rich clays, which might otherwise compete for the Mg cation and pore-space in the submarine basaltic crust. This suggests that the injection of CO2-charged seawater into subsurface basalts can be an efficient and effective approach to the long-term safe mineral storage of anthropogenic carbon. Article in Journal/Newspaper Iceland North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geochimica et Cosmochimica Acta 308 21 41 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Voigt, Martin Marieni, Chiara Baldermann, Andre Galeczka, Iwona, Wolff-Boenisch, Domenik Oelkers, Eric, Gislason, Sigurdur An experimental study of basalt–seawater–CO2 interaction at 130 °C |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Over millions of years, the interaction of marine basalt with percolating seawater in low-temperature ocean floor hydrothermal systems leads to the formation of calcite and aragonite. The presence of these minerals in marine basalts provides evidence for substantial CO2 fixation in these rocks. Here, we report on laboratory experiments to study this process under enhanced CO2 partial pressures (pCO2) at 130 °C. Mid-ocean-ridge-basalt (MORB) glass was reacted with North Atlantic Seawater charged with CO2 in batch experiments lasting up to 7 months. For experiments initiated with seawater charged with ~ 2.5 bar pCO2, calcite and aragonite are the first carbonate minerals to form, later followed by only aragonite (± siderite and ankerite). For experiments initiated with seawater charged with ~ 16 bar pCO2, magnesite was the only carbonate mineral observed to form. In total, approximately 20 % of the initial CO2 in the reactors was mineralized within five months. This carbonation rate is similar to corresponding rates observed in freshwater-basalt-CO2 interaction experiments and during field experiments of the carbonation of basalts in response to CO2-charged freshwater injections in SW-Iceland. Our experiments thus suggest that CO2-charged seawater injected into submarine basalts will lead to rapid CO2 mineralization. Notably, at pCO2 of tens of bars, magnesite will form, limiting the formation of Mg-rich clays, which might otherwise compete for the Mg cation and pore-space in the submarine basaltic crust. This suggests that the injection of CO2-charged seawater into subsurface basalts can be an efficient and effective approach to the long-term safe mineral storage of anthropogenic carbon. |
author2 |
Institute of Earth Sciences University of Iceland University of Iceland Reykjavik Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Science Institute, University of Iceland |
format |
Article in Journal/Newspaper |
author |
Voigt, Martin Marieni, Chiara Baldermann, Andre Galeczka, Iwona, Wolff-Boenisch, Domenik Oelkers, Eric, Gislason, Sigurdur |
author_facet |
Voigt, Martin Marieni, Chiara Baldermann, Andre Galeczka, Iwona, Wolff-Boenisch, Domenik Oelkers, Eric, Gislason, Sigurdur |
author_sort |
Voigt, Martin |
title |
An experimental study of basalt–seawater–CO2 interaction at 130 °C |
title_short |
An experimental study of basalt–seawater–CO2 interaction at 130 °C |
title_full |
An experimental study of basalt–seawater–CO2 interaction at 130 °C |
title_fullStr |
An experimental study of basalt–seawater–CO2 interaction at 130 °C |
title_full_unstemmed |
An experimental study of basalt–seawater–CO2 interaction at 130 °C |
title_sort |
experimental study of basalt–seawater–co2 interaction at 130 °c |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372/document https://hal.archives-ouvertes.fr/hal-03388372/file/voigt.seawater.final.pdf https://doi.org/10.1016/j.gca.2021.05.056 |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
ISSN: 0016-7037 EISSN: 0016-7037 Geochimica et Cosmochimica Acta https://hal.archives-ouvertes.fr/hal-03388372 Geochimica et Cosmochimica Acta, Elsevier, 2021, 308, pp.21-41. ⟨10.1016/j.gca.2021.05.056⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2021.05.056 hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372 https://hal.archives-ouvertes.fr/hal-03388372/document https://hal.archives-ouvertes.fr/hal-03388372/file/voigt.seawater.final.pdf doi:10.1016/j.gca.2021.05.056 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.gca.2021.05.056 |
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Geochimica et Cosmochimica Acta |
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308 |
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21 |
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41 |
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