Fig. 4
From: Laser ablation MC-ICPMS U-Th and U-Th-Pb dating of Quaternary zircons from Jeju Island, Korea
Tera-Wasserburg plots for Jeju zircons and standards. Common Pb-uncorrected U-Pb data are plotted with the conventional (in black) and modified (in red) concordia curves. The open circle indicates an outlier identified through the calculation of weighted mean age. Error bars are at the 2σ level. Modified concordia curves are constructed following Sakata (2018), utilizing average fTh/U (= (Th/U)zircon/(Th/U)whole-rock) values. The numbers marked on the concordia curves represent dates in ka. Dashed lines on the plot depict the mixing lines between common and radiogenic Pb