Characterisation of interactions between a pre-existing polygonal fault system and sandstone intrusions and the determination of paleo-stresses in the Faroe-Shetland basin

► Sandstone intrusions and polygonal faults interactions are classified into 3 types. ► These types are characterised geometrically. ► N145° faults are intruded during N°55 faults arrest sandstone intrusion propagation. ► This basin was undergoing extensional regime at the time of intrusion.