Overview of the chemical composition at the CPD midplane for the “full reset” case (top row), for the “partial reset” case (middle row), and for the “full inheritance” case (bottom row). Left column: radial mass fraction of ices at the CPD midplane (filled-colored regions) where f_ice > 0.01. The white lines indicate the radial ice-to-rock ratio of solids at the midplane (solid line) and integrated up to an altitude above the midplane equal to the Hill radius of Ganymede (dashed line). The estimated ice-to-rock ratio of the Galilean satellites is included (circles with error bars). Center column: radially integrated midplane ice composition out to R_H/3 (outer ring) and within the orbit of Callisto a_JIV (inner circle). Right column: total disk-integrated elemental composition of the ices are shown in the same two radial zones.