Permian ultrahigh–temperature reworking in the southern Chinese Altai: Evidence from petrology, P–T estimates, zircon and monazite U–Th–Pb geochronology

The Chinese Altai orogen formed in the Paleozoic is an important part of the Central Asian Orogenic Belt (CAOB), and the study on the metamorphism will provide novel and robust constraints on its tectonic evolution. In this study, we investigate our newly recognized garnet–orthopyroxene–cordierite granulites at Wuqiagou area in the southern Chinese Altai. Detailed petrographic study and P–T estimates suggest four distinct metamorphic stages of...