U-Pb ages of detrital zircons from the Basal allochthonous units of NW Iberia: Provenance and paleoposition on the northern margin of Gondwana during the Neoproterozoic and Paleozoic

1. Díez Fernández, R.
2. Catalán, J.R.M.
3. Gerdes, A.
4. Abati, J.
5. Arenas, R.
6. Fernández-Suárez, J.