Main structural features of the Lower Cretaceous Maestrat Basin (Eastern Iberian Range)

The Maestrat basin (up to 6.5 km of Mesozoic sediments) is an intracontinental basin located in the Iberian Range (Iberian Basin), which underwent two significant rift stages during the Late Jurassic and Early Cretaceous. The rift structure is characterised by a system of ESE-WNW extensional Ustric faults which are detached in a shallow upper crustal level. These faults record two well-differentiated periods: i) Late Jurassic, and ii) Early Cretaceous, and divide the Maestrat basin into several blocks. These blocks controlled seven main sub-basins (Fig. 1): 1) Penyagolosa sub-basin (PC), 2) La Salzedella sub-basin (Sa), 3) Morelia sub-basin (Mo), 4) El Perello sub-basin (Pe), 5) Aliaga sub-basin (Al), (6) Galve sub-basin (Ca), and 7) Oliete sub-basin (Ol