A long-lived tectono-metamorphic event in the late Paleoproterozoic: Evidence from SIMS U–Th–Pb dating of monazite from metapelite in central-south Trans-North China Orogen

As a key accessory mineral in metapelite, monazite forms in the metamorphic event and therefore, places important direct constraint on the timing of the tectono-metamorphic event. In this study, we investigate four representative metapelites from different metamorphic terranes in the central-south Trans-North China Orogen (TNCO), applying secondary ion mass spectrometry (SIMS) U–Th–Pb dating on monazite. The dating results reveal that monazite...