In situ mineral carbonation in porous and permeable mafic and ultramafic volcanic rocks is proposed to be a promising process that can contribute toward safe and permanent CO2 sequestration. Here, we investigated a partially buried Late Cretaceous composite volcano located offshore the central West Iberian margin as a proxy for potential in situ mineral carbonation in volcanic edifices on continental margins worldwide. Based on seismic data, geochemistry, and petrophysical properties, deterministic scenarios for permanent carbon storage were estimated. Overall analysis of the nature of the volcano and its internal architecture revealed that this single edifice has the potential to store 1.2–8.6 Gt CO2 in newly formed carbonate mineral assemblages. Results suggest that ancient, buried volcanoes on continental margins constitute auspicious sites for safe carbon storage, with a total storage capacity of hundreds of gigatonnes of CO2.
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Research Article|
May 16, 2023
In situ carbon storage potential in a buried volcano
Ricardo Pereira;
Ricardo Pereira
1
GeoBioTec, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Monte da Caparica, Portugal2
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal
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Davide Gamboa
Davide Gamboa
3
Centro de Estudos do Ambiente e do Mar (CESAM) and Department of Geosciences, University of Aveiro, 3810-193 Aveiro, Portugal
Search for other works by this author on:
Ricardo Pereira
1
GeoBioTec, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Monte da Caparica, Portugal2
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal
Davide Gamboa
3
Centro de Estudos do Ambiente e do Mar (CESAM) and Department of Geosciences, University of Aveiro, 3810-193 Aveiro, Portugal
Publisher: Geological Society of America
Received:
25 Nov 2022
Revision Received:
12 Apr 2023
Accepted:
21 Apr 2023
First Online:
16 May 2023
Online ISSN: 1943-2682
Print ISSN: 0091-7613
© 2023 Geological Society of America
Geology (2023)
Article history
Received:
25 Nov 2022
Revision Received:
12 Apr 2023
Accepted:
21 Apr 2023
First Online:
16 May 2023
Citation
Ricardo Pereira, Davide Gamboa; In situ carbon storage potential in a buried volcano. Geology 2023; doi: https://doi.org/10.1130/G50965.1
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