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dc.contributor.authorRigopoulos, Ioannisen
dc.contributor.authorHarrison, Anna L.en
dc.contributor.authorDelimitis, Andreasen
dc.contributor.authorIoannou, Ioannisen
dc.contributor.authorEfstathiou, Angelos M.en
dc.contributor.authorKyratsi, Theodoraen
dc.contributor.authorOelkers, Eric H.en
dc.creatorRigopoulos, Ioannisen
dc.creatorHarrison, Anna L.en
dc.creatorDelimitis, Andreasen
dc.creatorIoannou, Ioannisen
dc.creatorEfstathiou, Angelos M.en
dc.creatorKyratsi, Theodoraen
dc.creatorOelkers, Eric H.en
dc.date.accessioned2021-01-27T10:17:38Z
dc.date.available2021-01-27T10:17:38Z
dc.date.issued2018
dc.identifier.issn0883-2927
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/63744
dc.description.abstractEnhanced weathering of mafic and ultramafic rocks has been suggested as a carbon sequestration strategy for the mitigation of climate change. This study was designed to assess the potential drawdown of CO2 directly from the atmosphere by the enhanced weathering of peridotites and basalts in seawater. Pulverized, and ball milled dunite, harzburgite and olivine basalt were reacted in artificial seawater in batch reactor systems open to the atmosphere for two months. The results demonstrate that the ball-milled dunite and harzburgite changed dramatically the chemical composition of the seawater within a few hours, inducing CO2 drawdown directly from the atmosphere and ultimately the precipitation of aragonite. In contrast, pulverized but unmilled rocks, and the ball-milled basalt, did not yield any significant changes in seawater composition during the two-month experiments. As much as 10 wt percent aragonite was precipitated during the experiment containing the finest-grained dunite. These results demonstrate that ball milling can substantially enhance the weathering rate of peridotites in marine environments, promoting the permanent storage of CO2 as environmentally benign carbonate minerals through enhanced weathering. The precipitation of Mg-silicate clay minerals, however, could reduce the efficiency of this carbon sequestration approach over longer timescales.en
dc.language.isoenen
dc.sourceApplied Geochemistryen
dc.source.urihttp://www.sciencedirect.com/science/article/pii/S0883292717303396
dc.titleCarbon sequestration via enhanced weathering of peridotites and basalts in seawateren
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.apgeochem.2017.11.001
dc.description.volume91
dc.description.startingpage197
dc.description.endingpage207
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeArticleen
dc.source.abbreviationApplied Geochemistryen
dc.contributor.orcidIoannou, Ioannis [0000-0002-8004-4913]
dc.contributor.orcidKyratsi, Theodora [0000-0003-2916-1708]
dc.contributor.orcidEfstathiou, Angelos M. [0000-0001-8393-8800]
dc.contributor.orcidRigopoulos, Ioannis [0000-0003-4869-4219]
dc.gnosis.orcid0000-0002-8004-4913
dc.gnosis.orcid0000-0003-2916-1708
dc.gnosis.orcid0000-0001-8393-8800
dc.gnosis.orcid0000-0003-4869-4219


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