Modes and timing of fracture network development in poly-deformed carbonate reservoir analogues, Mt. Chianello, southern Italy

► An analogue to important hydrocarbon reservoirs is exposed in the study area. ► Structural analysis points out a polyphase deformation history. ► The background fracture network is related to pre-thrusting extensional stages. ► The permeability structure is controlled by the early, inherited fracture network.