Fig. S5. Sedimentary geochemistry used to infer the provenance of Permian–Triassic marine sandstones related to the SE Gondwana active continental margin, South Island, New Zealand

K<sub>2</sub>O/Na<sub>2</sub>O v. SiO<sub>2</sub> summary plot of data from the Maitai Group, the Patuki and Croisilles melanges, the Caples Terrane and the Murihiku Terrane (this study).