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Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field

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Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field. / Dubacq, Benoit; Wigley, Max; Bickle, Mike et al.
In: Earth and Planetary Science Letters, Vol. 341–344, No. 10-19, 08.2012, p. 341-344.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Dubacq, B, Wigley, M, Bickle, M, Kampman, N, Ballentine, C & Sherwood-Lollar, B 2012, 'Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field', Earth and Planetary Science Letters, vol. 341–344, no. 10-19, pp. 341-344. https://doi.org/10.1016/j.epsl.2012.05.040

APA

Dubacq, B., Wigley, M., Bickle, M., Kampman, N., Ballentine, C., & Sherwood-Lollar, B. (2012). Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field. Earth and Planetary Science Letters, 341–344(10-19), 341-344. https://doi.org/10.1016/j.epsl.2012.05.040

Vancouver

Dubacq B, Wigley M, Bickle M, Kampman N, Ballentine C, Sherwood-Lollar B. Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field. Earth and Planetary Science Letters. 2012 Aug;341–344(10-19):341-344. doi: 10.1016/j.epsl.2012.05.040

Author

Dubacq, Benoit ; Wigley, Max ; Bickle, Mike et al. / Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field. In: Earth and Planetary Science Letters. 2012 ; Vol. 341–344, No. 10-19. pp. 341-344.

Bibtex

@article{b9888182248b4accae799eac9f1240ee,
title = "Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field",
abstract = "Secure storage of anthropogenic carbon dioxide (CO2) in geological reservoirs requires predicting gas–water–rock interactions over millennial timescales. Noble gases and carbon isotope measurements can be used to shed light on the nature of competing dissolution—precipitation processes over different timescales, from the fast dissolution of gaseous CO2 in groundwater to more sluggish reactions involving dissolution and precipitation of newly formed minerals in the reservoir. Here we study a compilation of gas analyses including noble gases and δ13C of CO2 from nine different natural CO2 reservoirs. Amongst these reservoirs, the Bravo Dome CO2 field (New Mexico, USA) shows distinct geochemical trends which are explained by degassing of noble gases from groundwater altering the composition of the gas phase. This groundwater degassing is synchronous with the dissolution of CO2 in groundwater. Progressive creation of alkalinity via CO2-promoted mineral dissolution is required to explain the observed positive correlation between CO2/3He and δ13C of the gas phase, a unique feature of Bravo Dome. The differences between Bravo Dome and other natural CO2 reservoirs are likely explained by the more recent filling of Bravo Dome, reflecting CO2–water–rock interactions over thousands of years rather than over millions of years in older reservoirs.",
keywords = "CO2 sequestration, stable isotopes, noble gas isotopes, dissolution, Bravo Dome",
author = "Benoit Dubacq and Max Wigley and Mike Bickle and Niko Kampman and Chris Ballentine and Barbara Sherwood-Lollar",
year = "2012",
month = aug,
doi = "10.1016/j.epsl.2012.05.040",
language = "English",
volume = "341–344",
pages = "341--344",
journal = "Earth and Planetary Science Letters",
issn = "0012-821X",
publisher = "Elsevier Science B.V.",
number = "10-19",

}

RIS

TY - JOUR

T1 - Noble gas and carbon isotopic evidence for CO2-driven silicate dissolution in a recent natural CO2 field

AU - Dubacq, Benoit

AU - Wigley, Max

AU - Bickle, Mike

AU - Kampman, Niko

AU - Ballentine, Chris

AU - Sherwood-Lollar, Barbara

PY - 2012/8

Y1 - 2012/8

N2 - Secure storage of anthropogenic carbon dioxide (CO2) in geological reservoirs requires predicting gas–water–rock interactions over millennial timescales. Noble gases and carbon isotope measurements can be used to shed light on the nature of competing dissolution—precipitation processes over different timescales, from the fast dissolution of gaseous CO2 in groundwater to more sluggish reactions involving dissolution and precipitation of newly formed minerals in the reservoir. Here we study a compilation of gas analyses including noble gases and δ13C of CO2 from nine different natural CO2 reservoirs. Amongst these reservoirs, the Bravo Dome CO2 field (New Mexico, USA) shows distinct geochemical trends which are explained by degassing of noble gases from groundwater altering the composition of the gas phase. This groundwater degassing is synchronous with the dissolution of CO2 in groundwater. Progressive creation of alkalinity via CO2-promoted mineral dissolution is required to explain the observed positive correlation between CO2/3He and δ13C of the gas phase, a unique feature of Bravo Dome. The differences between Bravo Dome and other natural CO2 reservoirs are likely explained by the more recent filling of Bravo Dome, reflecting CO2–water–rock interactions over thousands of years rather than over millions of years in older reservoirs.

AB - Secure storage of anthropogenic carbon dioxide (CO2) in geological reservoirs requires predicting gas–water–rock interactions over millennial timescales. Noble gases and carbon isotope measurements can be used to shed light on the nature of competing dissolution—precipitation processes over different timescales, from the fast dissolution of gaseous CO2 in groundwater to more sluggish reactions involving dissolution and precipitation of newly formed minerals in the reservoir. Here we study a compilation of gas analyses including noble gases and δ13C of CO2 from nine different natural CO2 reservoirs. Amongst these reservoirs, the Bravo Dome CO2 field (New Mexico, USA) shows distinct geochemical trends which are explained by degassing of noble gases from groundwater altering the composition of the gas phase. This groundwater degassing is synchronous with the dissolution of CO2 in groundwater. Progressive creation of alkalinity via CO2-promoted mineral dissolution is required to explain the observed positive correlation between CO2/3He and δ13C of the gas phase, a unique feature of Bravo Dome. The differences between Bravo Dome and other natural CO2 reservoirs are likely explained by the more recent filling of Bravo Dome, reflecting CO2–water–rock interactions over thousands of years rather than over millions of years in older reservoirs.

KW - CO2 sequestration

KW - stable isotopes

KW - noble gas isotopes

KW - dissolution

KW - Bravo Dome

U2 - 10.1016/j.epsl.2012.05.040

DO - 10.1016/j.epsl.2012.05.040

M3 - Journal article

VL - 341–344

SP - 341

EP - 344

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

SN - 0012-821X

IS - 10-19

ER -