Late Permian intermediate and felsic intrusions in the eastern Central Asian Orogenic Belt: Final-stage magmatic record of Paleo-Asian Oceanic subduction?

The Central Asian Orogenic Belt (CAOB), which formed by closure of the Paleo-Asian Ocean, is one of the largest Phanerozoic accretionary orogens on Earth. However, the timing of final closure of the Paleo-Asian Ocean remains debated. Here we present new zircon UPb dating, oxygen fugacity estimates, and whole-rock geochemical and SrNd isotopic data from intermediate and felsic intrusive rocks in the Chunhua area of NE China to constrain their...