Building the New England Batholith, eastern Australia-Linking granite petrogenesis with geodynamic setting using Hf isotopes in zircon

▶ U-Pb and Hf isotope analysis of zircon reveal a link between granite petrogenesis and geodynamic setting. ▶ Hf isotopes show a significant contribution of depleted magmas in granites that formed in an attenuated orogen. ▶ Granites that form in thick orogens are largely composed of evolved magmas. ▶ The development of lithosphere scale detachments during orogenic extension could facilitate the transportation of depleted magmas into the crust.