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Open AccessArticle

Potential for Mineral Carbonation of CO2 in Pleistocene Basaltic Rocks in Volos Region (Central Greece)

Centre for Research and Technology, 15125 Hellas (CERTH), Greece
Section of Earth Materials, Department of Geology, University of Patras, GR-265 00 Patras, Greece
Department of Mineralogy and Petrology, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, Zografou, P.C. 15784 Athens, Greece
Hellenic Survey of Geology and Mineral Exploration (HSGME), 13677 Attica, Greece
Author to whom correspondence should be addressed.
Minerals 2019, 9(10), 627;
Received: 30 August 2019 / Revised: 26 September 2019 / Accepted: 8 October 2019 / Published: 11 October 2019
(This article belongs to the Special Issue Geological and Mineralogical Sequestration of CO2)
Pleistocene alkaline basaltic lavas crop out in the region of Volos at the localities of Microthives and Porphyrio. Results from detailed petrographic study show porphyritic textures with varying porosity between 15% and 23%. Data from deep and shallow water samples were analysed and belong to the Ca-Mg-Na-HCO3-Cl and the Ca-Mg-HCO3 hydrochemical types. Irrigation wells have provided groundwater temperatures reaching up to ~30 °C. Water samples obtained from depths ranging between 170 and 250 m. The enhanced temperature of the groundwater is provided by a recent-inactive magmatic heating source. Comparable temperatures are also recorded in adjacent regions in which basalts of similar composition and age crop out. Estimations based on our findings indicate that basaltic rocks from the region of Volos have the appropriate physicochemical properties for the implementation of a financially feasible CO2 capture and storage scenario. Their silica-undersaturated alkaline composition, the abundance of Ca-bearing minerals, low alteration grade, and high porosity provide significant advantages for CO2 mineral carbonation. Preliminary calculations suggest that potential pilot projects at the Microthives and Porphyrio basaltic formations can store 64,800 and 21,600 tons of CO2, respectively. View Full-Text
Keywords: basalts; carbonation; CO2 storage; hydrochemistry; regional heat flow basalts; carbonation; CO2 storage; hydrochemistry; regional heat flow
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Koukouzas, N.; Koutsovitis, P.; Tyrologou, P.; Karkalis, C.; Arvanitis, A. Potential for Mineral Carbonation of CO2 in Pleistocene Basaltic Rocks in Volos Region (Central Greece). Minerals 2019, 9, 627.

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