The subsurface carbonation potential of basaltic rocks from the Jizan region of Southwest Saudi Arabia

•The Jizan region of south west Saudi Arabia contain large industrial CO2 sources.•The Jizan subsurface contains large reactive basalts for mineral carbonation.•Experiments and geochemical calculations demonstrate their carbonation potential.•The Jizan basalts are likely sufficient to store >100 years of local CO2 emissions.•Results encourage the use of the Jizan basalts for subsurface carbon disposal.