452950.fig.002
Figure 2: Structural sketch map of the Montorfano pluton, showing the main directions of the principal fracture systems and the main faults in the granite massif. These directions depend on the regional faults system (Gravellona-Fondotoce-Bieno, Candoglia-Mergozzo-Fondotoce, and Pogallo-Lago d’Orta faults) [6].