Geological maps showing the location of calc-alkaline plutons and their relation with tectono-metamorphic units. (a) Simplified geological map of the Limousin area adapted from published BRGM maps, the position of studied plutons is indicated together with samples labels. (b) Zoom on the St-Féréole-Tulle massif located within UGU but near the LGU/UGU contact. Foliation trajectories from Bellot and Roig (2007).