Fig. 2
From: Record of low-temperature aqueous alteration of Martian zircon during the late Amazonian
Calculated radiation doses as a function of Th/U in zircon. The panels a, b and c correspond to data from Wilde et al.58, Cavosie et al.59, and Pidgeon et al.13, respectively. Note the general upward-opening fan shape distribution of data above the first percolation point (stage at which amorphous domains become connected8,9). Corresponding data can be found in Supplementary Data 2
