Geochronology of the Chakabeishan Li–(Be) rare-element pegmatite, Zongwulong orogenic belt, northwest China: Constraints from columbite–tantalite U–Pb and muscovite–lepidolite 40Ar/39Ar dating

•We firstly reported the ore ages of the newly discovered Li-rich pegmatite in the NQT.•The newly discovered pegmatites have similar ages to the pegmatite in the MYK.•The pegmatites in the NQT may be formed in a continental collision setting.