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Fig. 4


Characteristic of the maximum ocean as a function of the planetary mass, for different models. The top, middle and bottom panels present respectively the water fraction (considering only the ocean), the ocean mass relative to the ocean mass on Earth (MOcean = 2.3 10-4M), and the ocean depth. The heavy red solid line is in the case of an iron free planet, with an inner mantle made of MgO, outer mantle made of Mg2Si2O6. The blue lines are computed assuming a solar Mg/Si, and a Fe/Si equal to the solar value (solid line), two times the solar value (dotted line), and five times the solar value (dashed line).

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