Replication Data for: Regolith mixing by impacts: Lateral diffusion of basin melt.

• Cumulative impact gardening on presence of melt laterally and with depth is modeled by means of a Monte Carlo approach. • The quantitative abundance of the melt from three mid- to late-forming basin is estimated. • Burying and transportation play more important roles than re-melting process in melt diffusion. • The simulated abundance of basin melt is consistent with the radiometric ages from Apollo and Luna highland samples.