Complete U–Th–Pb SHRIMP dataset from Archean and Ediacaran rocks of the Northwest Chami Thrust Belt, NW Mauritania.

This dataset contains the complete SHRIMP U–Th–Pb zircon analytical data from Archean and Ediacaran igneous rocks of the Northwest Chami Thrust Belt (NW Mauritania), including both concordant and discordant analyses. These data underpin the results presented in the associated manuscript entitled "SHRIMP U–Pb zircon protolith ages in northwestern Mauritania reveal Archean TTGs and Ediacaran subduction-related granitoids" and are provided to ensure transparency and facilitate data reuse.