Formation of juvenile continental crust in northern Nubian Shield: New evidence from granitic zircon U-Pb-Hf-O isotopes

•The Um Khariga and Genina Gharbia granitoids in the Eastern Desert yielded ages of ∼ 750 Ma and ∼ 690 Ma, respectively.•The ∼ 800–650 Ma magmatism in the Eastern Desert is characterized by zircon εHf(t) (+8 to + 15), and mantle-like zircon δ18O values (∼+5‰).•The two episodes of continental crustal growth/reworking in the Eastern Desert represent either direct extraction from a depleted mantle and/or the reworking of accreted juvenile oceanic/arc terranes.