Proterozoic to Cretaceous evolution of the western and central Pearya Terrane (Canadian High Arctic)

After the probably stepwise accretion of Pearya blocks to the northern margin of Laurentia during the Devonian to early Carboniferous Ellesmerian Orogeny, the Pearya Terrane was affected by thermal events during the Mesozoic, such as the intrusion of Triassic/Jurassic alkali-basaltic dykes and the Cretaceous magmatism of the High Arctic Large Igneous Province (HALIP). This study supports previous models that the Pearya Terrane is composed of crustal fragments, which are exotic to the Canadian Arctic margin.