Mantle (oxide) and core (elements) compositions of Earth analogs at 200 Myr, normalized to Mg and further normalized to Earth reference atomic ratios. Gray circles show individual simulations (n=7). Black diamonds with error bars indicate the mean values with a ±1σ spread. Colored diamonds denote the compositions of the meteoritic endmembers used in the accretion-composition tagging scheme (EF, EC, OC, and CI). The dashed blue lines and shaded band denote the Earth reference values (±10%). Red markers indicate the estimated uncertainty ranges of Si and O abundances in the Earth's core from Hirose et al. (2021).