Spatial-temporal-compositional evolution of syn-orogenic magmatism in the northern New England Orogen: Implications for the Permo-Triassic eastern Gondwanan margin

This project investigated the evolution of igneous activity in eastern Australia during the Permian and Triassic. In Queensland, this Permo-Triassic igneous activity was previously thought to be synchronous with an Andean-scale mountain building event. This study utilised uranium-lead dating, whole rock and mineral isotopic geochemistry to test this hypothesis. The resulting dates and geochemical compositions demonstrate discrete pulses of igneous activity before, during, and following mountain building, providing updated tectonic models for the Permian and Triassic in eastern Australia.