Fig. 5
From: Record of low-temperature aqueous alteration of Martian zircon during the late Amazonian
Time-integrated Th/U as a function of that measured for Martian zircons. Data are from Nemchin et al.16, McCubbin et al.17, and Humayun et al.36 which are available in Supplementary Data 4. Note the large decoupling between measured and time-integrated Th/U for domains within zircon Z2 from NWA 7533 analyzed in Nemchin et al.16. Measured Th/U are also well outside the common magmatic range, much as what can be seen in Jack Hills zircons. Error bars represent two standard errors on analytical measurements
