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In situ redeposition of trace metals mobilized by CO2-charged brines

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

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In situ redeposition of trace metals mobilized by CO2-charged brines. / Wigley, Max; Kampman, Niko; Chapman, Hazel et al.
In: Geochemistry, Geophysics, Geosystems, Vol. 14, No. 5, 05.2013, p. 1321–1332.

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

Harvard

Wigley, M, Kampman, N, Chapman, H, Dubacq, B & Bickle, M 2013, 'In situ redeposition of trace metals mobilized by CO2-charged brines', Geochemistry, Geophysics, Geosystems, vol. 14, no. 5, pp. 1321–1332. https://doi.org/10.1002/ggge.20104

APA

Wigley, M., Kampman, N., Chapman, H., Dubacq, B., & Bickle, M. (2013). In situ redeposition of trace metals mobilized by CO2-charged brines. Geochemistry, Geophysics, Geosystems, 14(5), 1321–1332. https://doi.org/10.1002/ggge.20104

Vancouver

Wigley M, Kampman N, Chapman H, Dubacq B, Bickle M. In situ redeposition of trace metals mobilized by CO2-charged brines. Geochemistry, Geophysics, Geosystems. 2013 May;14(5):1321–1332. doi: 10.1002/ggge.20104

Author

Wigley, Max ; Kampman, Niko ; Chapman, Hazel et al. / In situ redeposition of trace metals mobilized by CO2-charged brines. In: Geochemistry, Geophysics, Geosystems. 2013 ; Vol. 14, No. 5. pp. 1321–1332.

Bibtex

@article{a0700197efa24f5180f2e87a61c38f0f,
title = "In situ redeposition of trace metals mobilized by CO2-charged brines",
abstract = "Mobilization of contaminants by CO2-charged brines is one concern relating to injection of CO2 as part of carbon capture and storage projects. This study monitors the mobility of trace metals in an exhumed CO2-charged aquifer near the town of Green River, Utah (USA), where CO2-charged brines have bleached red sandstones, and concentrated trace metals at the bleaching reaction front. Mass balance calculations on the trace metal enrichments are used to calculate time-integrated fluid fluxes and show that a significant fraction of the metals mobilized by the CO2-rich brines are redeposited locally. A sequential extraction procedure on metal-enriched samples shows that these metals are incorporated into secondary carbonate and oxide phases which have been shown to grow at the CO2-promoted bleaching reaction front. We argue that while CO2-charged brines are capable of mobilizing trace metals, local metal redeposition implies that the potential for contamination of overlying freshwater aquifers is low.",
keywords = "CO2, Trace metals , contamination , Green River",
author = "Max Wigley and Niko Kampman and Hazel Chapman and Benoit Dubacq and Mike Bickle",
note = "{\textcopyright}2013. American Geophysical Union. All Rights Reserved.",
year = "2013",
month = may,
doi = "10.1002/ggge.20104",
language = "English",
volume = "14",
pages = "1321–1332",
journal = "Geochemistry, Geophysics, Geosystems",
issn = "1525-2027",
publisher = "John Wiley & Sons, Ltd",
number = "5",

}

RIS

TY - JOUR

T1 - In situ redeposition of trace metals mobilized by CO2-charged brines

AU - Wigley, Max

AU - Kampman, Niko

AU - Chapman, Hazel

AU - Dubacq, Benoit

AU - Bickle, Mike

N1 - ©2013. American Geophysical Union. All Rights Reserved.

PY - 2013/5

Y1 - 2013/5

N2 - Mobilization of contaminants by CO2-charged brines is one concern relating to injection of CO2 as part of carbon capture and storage projects. This study monitors the mobility of trace metals in an exhumed CO2-charged aquifer near the town of Green River, Utah (USA), where CO2-charged brines have bleached red sandstones, and concentrated trace metals at the bleaching reaction front. Mass balance calculations on the trace metal enrichments are used to calculate time-integrated fluid fluxes and show that a significant fraction of the metals mobilized by the CO2-rich brines are redeposited locally. A sequential extraction procedure on metal-enriched samples shows that these metals are incorporated into secondary carbonate and oxide phases which have been shown to grow at the CO2-promoted bleaching reaction front. We argue that while CO2-charged brines are capable of mobilizing trace metals, local metal redeposition implies that the potential for contamination of overlying freshwater aquifers is low.

AB - Mobilization of contaminants by CO2-charged brines is one concern relating to injection of CO2 as part of carbon capture and storage projects. This study monitors the mobility of trace metals in an exhumed CO2-charged aquifer near the town of Green River, Utah (USA), where CO2-charged brines have bleached red sandstones, and concentrated trace metals at the bleaching reaction front. Mass balance calculations on the trace metal enrichments are used to calculate time-integrated fluid fluxes and show that a significant fraction of the metals mobilized by the CO2-rich brines are redeposited locally. A sequential extraction procedure on metal-enriched samples shows that these metals are incorporated into secondary carbonate and oxide phases which have been shown to grow at the CO2-promoted bleaching reaction front. We argue that while CO2-charged brines are capable of mobilizing trace metals, local metal redeposition implies that the potential for contamination of overlying freshwater aquifers is low.

KW - CO2

KW - Trace metals

KW - contamination

KW - Green River

UR - http://www.scopus.com/inward/record.url?scp=84879963012&partnerID=8YFLogxK

U2 - 10.1002/ggge.20104

DO - 10.1002/ggge.20104

M3 - Journal article

VL - 14

SP - 1321

EP - 1332

JO - Geochemistry, Geophysics, Geosystems

JF - Geochemistry, Geophysics, Geosystems

SN - 1525-2027

IS - 5

ER -