Elemental abundance variations due to the accretion of solid material. The triangles, diamonds, and stars show the depletion patterns of Fig. 10, while the crosses represent the effect of a mixture of Earth-like and meteoritic-like material on the convective envelopes of the different samples. The mass ratio of Earth-like and meteoritic-like material is given in the top right corner of each panel; the values given correspond to Earth masses (M_⊕). The convective envelope masses adopted are the present-day ones of a typical star in each sample.