A new continental hydrogen play in Damara Belt (Namibia).

Serpentinization is commonly presented as the main source of natural hydrogen (H) in the continental domains. However, recent works in Australia and Brazil showed that Archean-Paleoproterozoic banded iron formations could be another natural source of H gas. Although the reaction that produces hydrogen is similar (Fe oxidation-HO reduction process), the iron content may be higher in banded iron formations than in mafic igneous lithologies, potentially generating H more efficiently.