Geochemical and Sr–Nd isotopic characteristics of Cretaceous to Paleocene granitoids and volcanic rocks, SE Tibet: Petrogenesis and tectonic implications

Northward subduction of the Neo-Tethyan oceanic lithosphere beneath South Asia gave rise to an Andean-type convergent margin with arc magmatism starting since at least the early Jurassic and lasting until the Eocene. This study reports geochemical and Sr–Nd isotope data of the early Cretaceous (∼133–110 Ma) to Paleocene (∼60 Ma) magmatic belt that formed in the eastern Lhasa terrane, SE Tibet, including three major Transhimalayan batholiths,...