Element mobility during basalt-water-CO interaction: observations in natural systems vs. laboratory experiments and implication for carbon storage.

Today, carbon dioxide removal from the atmosphere is the most ambitious challenge to mitigate climate changes. Basalt rocks are abundant on the Earth's surface (≈ 10%) and very abundant in the ocean floors and subaerial environments. Glassy matrix and minerals constituting these rocks contain metals (Ca, Mg, Fe) that can react with carbonic acid to form metal carbonates (CaCO, MgO and FeCO3).