Subchondritic

According to the model, a magma ocean that differentiated chiefly at low pressure and contained 6-8 wt% A1203 and a subchondritic Ca/Al ratio probably formed the lunar crust.

The subcontinental lithospheric mantle as a mantle reservoir may be modeled by the time-integrated growth of radiogenic ¹⁸⁷Os along retarded (subchondritic) Re/Os trajectories, which results in subchondritic Os isotope compositions.

If all the Ag were delivered prior to the main phase, the core segregation by about 30 Ma when the Earth was 90% accreted, then a subchondritic ¹⁰⁷Ag/¹⁰⁹Ag would be expected because of strong depletion of siderophile element Pd in the silicate Earth.