Thorogenic Pb isotope plot of K-feldspar and whole-rock data of this study and compiled from published sources. LA-MC-ICP-MS results are shown with 2SE error ellipses. Symbols for TIMS and solution MC-ICP-MS results are greater than the uncertainty. One sample (AU1952109) with whole-rock ²⁰⁶Pb/²⁰⁴Pb > 300 and ²⁰⁸Pb/²⁰⁴Pb of >150 is outside the limits of panel (A). Literature data are from 1 Chapman et al. (2021), 2 Chapman et al. (2019), and 3 Cooper et al. (1969). The solid red curve (B) shows the evolution of terrestrial Pb after Stacey & Kramers (1975). The dashed gray curves in (B) show the evolution of Pb isotopes in the upper continental crust (UCC), the mantle, and the lower continental crust (LCC) after Zartman & Doe (1981).