A three-dimensional dynamic simulation code, which calculates the local transport and redeposition of impurities on a divertor plate and the depth profile of deposited impurities in the plate, is developed. The code simulates the erosion and redeposition patterns of a graphite plate which was used in the third experimental campaign of the large herical device (LHD). The depth profile indicates a prompt, asymmetric redeposition of sputtered Fe atoms.