Fig. 6

U–Pb ages of detrital zircon grains from Triassic samples (EM) and Late Carboniferous (LC) samples. a–d Concordia curves with detailed views of 250 to 1100 Ma shown in insets for each sample. Data-point error ellipses are 2σ. e–h Combined binned frequency and probability density plots for results of all zircon age analyses with ages with discordance > 10% omitted. Bin width is 25 Ma