Decarbonation is the removal of carbonates from the ground or water by acidic precipitation (carbon dioxide, acid soil, acid rain) or by water softening processes.
Decarbonation can also mean the removal of CO2 from a substance or a material. This term should not be confused with decarbonisation.
The dissolution of calcium carbonate in a parent rock is a decarbonation process. © Craig Elliot CC by-nc-nd 2.0