Long-term CO₂ mineralization and geochemical alteration in basalts from Saudi Arabia: Implications for carbon storage

Key Points

• This research aims to investigate CO₂ mineralization and its implications for carbon storage in Saudi Arabian basalts.
• Experimental assessment of CO₂ mineralization in different basalt types.
• Comparison of scoriaceous basalt with dense basalt in terms of porosity and carbonate formation.
• Scoriaceous basalt exhibited greater porosity development than dense basalt.
• Higher Ca²⁺ release and TIC accumulation were observed in scoriaceous basalt.
• Enhanced carbonate formation in scoriaceous basalt indicates its superior potential for long-term CO₂ storage.