Analysis of the effect of temperature, pH, CO2 pressure and salinity on the olivine dissolution kinetics

Prigiobbe, Valentina; Hänchen, Markus; Costa, Giulia; Baciocchi, Renato; Mazzotti, Marco

doi:10.1016/j.egypro.2009.02.317

Cited by 50 publications

(43 citation statements)

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“…This justifies the use of either magnesium or silica release rate for calculations (Rimstidt et al 2012). When compiling data for a given temperature of 120¡C, Prigiobbe et al (2009) show that the rate of olivine dissolution mainly depends on pH for pH values greater than 8 (Fig. 4); pCO 2 and NaCl concentration affect the rate through their effect on pH.…”

Section: Carbon Dioxide-water-rock Interactions In Reservoir Rocks Anmentioning

confidence: 99%

Experimental Perspectives of Mineral Dissolution and Precipitation due to Carbon Dioxide-Water-Rock Interactions

Kaszuba

Yardley

Andréani

2013

Reviews in Mineralogy and Geochemistry

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Section: Carbon Dioxide-water-rock Interactions In Reservoir Rocks Anmentioning

confidence: 99%

Experimental Perspectives of Mineral Dissolution and Precipitation due to Carbon Dioxide-Water-Rock Interactions

Kaszuba

Yardley

Andréani

2013

Reviews in Mineralogy and Geochemistry

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“…Giammar et al, 2005;Oelkers et al, 2008;Prigiobbe et al, 2009;King et al, 2010;Daval et al, 2011;Guyot et al, 2011;Gudbrandsson et al, 2012;Saldi et al, 2013). The overall rate of olivine carbonation stems from the coupling of forsterite dissolution rates with Mg-carbonate precipitation rates.…”

Section: Implications For Carbon Storagementioning

confidence: 99%

“…The reactivity of forsterite and its silicate alteration products has received increasing attention as a potential source material for the divalent cations required to carbonate CO 2 during carbon storage efforts (e.g. Giammar et al, 2005;Oelkers and Schott, 2005;Bearat et al, 2006;Matter et al, 2007;Oelkers et al, 2008;Dufaud et al, 2009;Prigiobbe et al, 2009;Matter and Kelemen, 2009;King et al, 2010;Daval et al, 2011;Guyot et al, 2011;Broecker, 2012;Kohler et al, 2013;Gislason and Oelkers, 2014;Sissmann et al, 2014). This interest has led to a large number of studies aimed at characterizing forsterite dissolution behavior and rates at various fluid compositions and temperatures (Luce et al, 1972;Sanemasa et al, 1972, Grandstaff, 1978, 1986, Murphy and Helgeson, 1987, 1989Blum andLasaga, 1988, Banfield et al, 1990;Walther, 1991, 1992;Casey and Westrich, 1992, Awad et al, 2000, Chen and Brantley, 2000, Rosso and Rimstidt, 2000, Pokrovsky and Schott, 2000a, 2000b, Oelkers, 2001b, Giammar et al, 2005, Hänchen et al, 2006, Olsen and Rimstidt, 2008Davis et al, 2009;Rimstidt et al, 2012;Olsson et al, 2012;Plümper et al, 201...…”

Section: Introductionmentioning

confidence: 99%

The efficient long-term inhibition of forsterite dissolution by common soil bacteria and fungi at Earth surface conditions

Oelkers

Benning

Lutz

et al. 2015

Geochimica et Cosmochimica Acta

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“…Luce et al, 1972;Van Herk et al, 1989;Wogelius and Walther, 1991;Chen and Brantley, 2000;Pokrovski and Schott, 2000;Giammar et al, 2004;Hanchen et al, 2006;Prigiobbe et al, 2009). …”

Section: )mentioning

confidence: 99%

Determining timescales of natural carbonation of peridotite in the Samail Ophiolite, Sultanate of Oman

Mervine¹

2012

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Abstract:Determining timescales of the formation and preservation of carbonate alteration products in mantle peridotite is important in order to better understand the role of this potentially important sink in the global carbon cycle and also to evaluate the feasibility of using artificially-enhanced, in situ formation of carbonates in peridotite to mitigate the buildup of anthropogenic CO 2 emissions in the atmosphere. Timescales of natural carbonation of peridotite were investigated in the mantle layer of the Samail Ophiolite, Sultanate of Oman. Rates of ongoing, low-temperature CO 2 uptake were estimated through 14 C and 2 3 0Th dating of carbonate alteration products. Approximately 1-3 x 106 kg C0 2 /yr is sequestered in Ca-rich surface travertines and approximately 107 kg C0 2 /yr is sequestered in Mg-rich carbonate veins. Rates of CO 2 removal were estimated through calculation of maximum erosion rates from cosmogenic 3He measurements in partiallyserpentinized peridotite bedrock associated with carbonate alteration products. Maximum erosion rates for serpentinized peridotite bedrock are -5 to 180 m/Myr (average: -40 m/Myr), which removes at most 105-106 kg CO 2 /yr through erosion of Mg-rich carbonate veins. 3 DedicationI would like to dedicate my thesis to James "The Amazing" Randi, who taught me to think critically about the world around me and who reminds me that a PhD only means that I know a great amount about very little 4 Acknowledgments:First and foremost, I give my deepest thanks to my WHOI advisor Susan Humphris. Susan was an excellent mentor and role model, and she supported me through many difficult time periods and transitions during the course of my PhD journey. In the midst of an incredibly busy schedule, Susan always made time for me. Time and again, she went above and beyond the normal obligations of a PhD advisor. She even flew all the way to Muscat, Oman for three days to help me prepare for a conference presentation. Susan always pushed me to do my very best work, and she made sure that I had the support and resources that I needed in order to do my best work. I have no doubt that without Susan's mentorship I would not be here today, submitting my PhD thesis. Susan's support over the years has been invaluable.I also owe sincere thanks to my co-advisor Ken Sims. When I decided to leave my first PhD project, Ken immediately offered to take me on as a student. When I asked if it would be possible for me to work in the Samail Ophiolite, Ken helped me develop a collaboration with Peter Kelemen and wrote grants to support the new research project. Even after Ken moved from WHOI to the University of Wyoming, he continued to support my work and even brought me out to Laramie for a summer. Ken flew back to WHOI numerous times to help me finish my PhD, and he endured many long Skype calls of my questions.I also owe thanks to my PhD committee members, particularly Peter Kelemen. Peter was excited and supportive when I expressed my desire to work in the Samail Ophiolite, and he helped me develop th...

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Analysis of the effect of temperature, pH, CO2 pressure and salinity on the olivine dissolution kinetics

Cited by 50 publications

References 4 publications

Experimental Perspectives of Mineral Dissolution and Precipitation due to Carbon Dioxide-Water-Rock Interactions

Experimental Perspectives of Mineral Dissolution and Precipitation due to Carbon Dioxide-Water-Rock Interactions

The efficient long-term inhibition of forsterite dissolution by common soil bacteria and fungi at Earth surface conditions

Determining timescales of natural carbonation of peridotite in the Samail Ophiolite, Sultanate of Oman

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