Partial atmospheric surface pressure for all the considered atmospheric components for our Earth analogue. The water pressure includes here both the vapour atmosphere and the underlying water ocean. The initial spike in water pressure is due to the run-away greenhouse effect caused by the accretion energy. This initial outgassed atmosphere is thereafter dissolved in the magma ocean and replaced by an atmosphere with important contributions from SiO (from evaporation of the magma ocean) and O₂ (from the iron-wüstite buffer in the magma ocean). The cessation of the accretion energy after 5 Myr leads to a rapid decline of the SiO/O₂ atmosphere, followed by an outgassing of the final atmosphere dominated by CO₂ and H₂O.