Fig. 1
From: Low temperature carbonation and CO2 mineral trapping in altered hydrotalcite-rich ultrmafic rocks
(a, b) Schematic illustrations highlight combined reactions of dissolution of silicate minerals by acidic (CO2-rich) water, and liberation of metal ions followed by precipitation of metal carbonates and a pronounced swing in pH during these processes (compiled from3,15,22. (c) Field photograph taken by the lead author in the Kempirsay ultramafic massif, Kazakhstan, showing naturally formed carbonate veins within serpentinized harzburgite. These veins provide direct evidence of in situ mineral carbonation processes occurring under ambient geological conditions.
