(a) Structural and kinematic map of the Paleozoic crust of the Pyrenees. The Basque Massifs are displaced from their original position (see Fig. 2). The reader may refer to Figure 2 for the nomenclature of the main structural features. (b) Synthetic structural map. Transverse Li lineation trajectories have been drawn only where those lineations are dominant over large portions of the infrastructure. See Debon and Guitard (1996) for the corresponding regional-scale isograd map pattern.