Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)

In the framework of a natural CO reservoir with CO leakages as an analogue of a failed CO deep geological storage, the current precipitation of travertines and the associated upwelling of CO-rich saline groundwater were analysed. This natural analogue is located in the Gañuelas-Mazarrón Tertiary Bas...

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Autores: Rodrigo-Naharro, Julio, Herrero, María Jesús, Delgado Huertas, Antonio, Granados Torres, Arsenio, Pérez del Villar, Luis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/204980
Acceso en línea:http://hdl.handle.net/10261/204980
Access Level:acceso abierto
Palabra clave:CO2 storage
CO2 leakage
Travertines
Stable isotopes
Betic Cordillera
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spelling Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)Rodrigo-Naharro, JulioHerrero, María JesúsDelgado Huertas, AntonioGranados Torres, ArsenioPérez del Villar, LuisCO2 storageCO2 leakageTravertinesStable isotopesBetic CordilleraIn the framework of a natural CO reservoir with CO leakages as an analogue of a failed CO deep geological storage, the current precipitation of travertines and the associated upwelling of CO-rich saline groundwater were analysed. This natural analogue is located in the Gañuelas-Mazarrón Tertiary Basin (SE Spain). The study comprises of the chemistry of both groundwater and travertines, including stable isotopes, mineralogy and petrography of the travertines, all this performed after a review of the geology of the basin. In this sense, the basin gathers the main features of a safe natural CO reservoir in a deep saline aquifer sealed by a thick marl formation. The aquifer was artificially perturbed by the drilling of wells, inducing the travertines precipitation at these water discharge points. Groundwater is saline, slightly acid, oversaturated in aragonite and calcite and with significant concentrations of heavy elements, some of them toxic. From an isotopic viewpoint, the relative constant δC-DIC values suggest that carbon is mainly inorganic in origin with minor organic and mantle contributions. Travertines are basically composed of aragonite or calcite, their precipitation being controlled by a sudden CO degassing and minor biological activity. Their δC signatures indicate that carbon mainly has an inorganic origin, although some contribution of organic carbon must be considered as well. Furthermore, these carbonate deposits did not precipitate in isotopic equilibrium, as determined by δO values. Finally, it is suggested that the appearance of travertines along with their carbon isotopic signatures represent efficient tools for detecting CO leakages from any CO storage site.This work was supported by the Spanish Ministry of Science and Innovation and the EU FEDER funds under award number PSE-120000-2008-6. The authors are very grateful to Miguel Ángel Labajo (CIEMAT) for the SEM analyses, and Luis Gutiérrez and Marta Pelayo (CIEMAT) for the XRD analyses.Elsevier BVEuropean CommissionMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/204980reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.jhydrol.2019.123997Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2049802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
title Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
spellingShingle Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
Rodrigo-Naharro, Julio
CO2 storage
CO2 leakage
Travertines
Stable isotopes
Betic Cordillera
title_short Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
title_full Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
title_fullStr Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
title_full_unstemmed Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
title_sort Current travertines precipitation related to artificial CO2 leakages from a natural reservoir (Gañuelas-Mazarrón Tertiary Basin, SE Spain)
dc.creator.none.fl_str_mv Rodrigo-Naharro, Julio
Herrero, María Jesús
Delgado Huertas, Antonio
Granados Torres, Arsenio
Pérez del Villar, Luis
author Rodrigo-Naharro, Julio
author_facet Rodrigo-Naharro, Julio
Herrero, María Jesús
Delgado Huertas, Antonio
Granados Torres, Arsenio
Pérez del Villar, Luis
author_role author
author2 Herrero, María Jesús
Delgado Huertas, Antonio
Granados Torres, Arsenio
Pérez del Villar, Luis
author2_role author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv CO2 storage
CO2 leakage
Travertines
Stable isotopes
Betic Cordillera
topic CO2 storage
CO2 leakage
Travertines
Stable isotopes
Betic Cordillera
description In the framework of a natural CO reservoir with CO leakages as an analogue of a failed CO deep geological storage, the current precipitation of travertines and the associated upwelling of CO-rich saline groundwater were analysed. This natural analogue is located in the Gañuelas-Mazarrón Tertiary Basin (SE Spain). The study comprises of the chemistry of both groundwater and travertines, including stable isotopes, mineralogy and petrography of the travertines, all this performed after a review of the geology of the basin. In this sense, the basin gathers the main features of a safe natural CO reservoir in a deep saline aquifer sealed by a thick marl formation. The aquifer was artificially perturbed by the drilling of wells, inducing the travertines precipitation at these water discharge points. Groundwater is saline, slightly acid, oversaturated in aragonite and calcite and with significant concentrations of heavy elements, some of them toxic. From an isotopic viewpoint, the relative constant δC-DIC values suggest that carbon is mainly inorganic in origin with minor organic and mantle contributions. Travertines are basically composed of aragonite or calcite, their precipitation being controlled by a sudden CO degassing and minor biological activity. Their δC signatures indicate that carbon mainly has an inorganic origin, although some contribution of organic carbon must be considered as well. Furthermore, these carbonate deposits did not precipitate in isotopic equilibrium, as determined by δO values. Finally, it is suggested that the appearance of travertines along with their carbon isotopic signatures represent efficient tools for detecting CO leakages from any CO storage site.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/204980
url http://hdl.handle.net/10261/204980
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.jhydrol.2019.123997
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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