Geochronology and geochemistry of Late Jurassic to Early Cretaceous granitoids in the northern Great Xing'an Range, NE China: Petrogenesis and implications for late Mesozoic tectonic evolution

This study provides new zircon UPb geochronological and geochemical data for Late Jurassic to Early Cretaceous granitoids in the northern Great Xing'an Range (GXR), NE China, and uses these data to constrain the late Mesozoic tectonic evolution of the GXR. The zircons from these granitoids are magmatic, as indicated by their appearances during cathodoluminescence imaging and high Th/U ratios (0.21–2.35). Zircon UPb dating indicates that the...