The timing and duration of high-temperature to ultrahigh-temperature metamorphism constrained by zircon U–Pb–Hf and trace element signatures in the Khondalite Belt, North China Craton

Shujuan Jiao, Jinghui Guo, Noreen J. Evans, B.J. McDonald, Peng Liu, Dongjian Ouyang, I. C. W. Fitzsimons