Mesozoic structural inheritance in the Cenozoic evolution of the central Catalan Coastal Ranges (western Mediterranean): Structural and magnetotelluric analysis in the Gaià-Montmell High

The control exerted by the Mesozoic basin configuration on Cenozoic tectonic evolution of Catalan Coastal Ranges has been frequently recognized as a key factor to explain its present-day structure. However, details this structural inheritance and through geological time is still under discussion. In work we present two cross-sections based fieldwork, well magnetotelluric data in order illustrate styles Gaià-Montmell High. Here, Montmell Fault not only constitutes SW segment one major Neogene faults (the Montmell-Vallès System), but also NW limit Late Jurassic-Early Cretaceous extensional basin(the Montmell-Garraf Basin), facts that denote role fault area. structure High resulted, therefore, from successive episodes inversion during Cenozoic. first reactivated compressional Paleogene. As result, among other inversion-related structures, Gaià-El Camp Thrust developed sa NW-directed basement footwall shortcut. Later on, previously formed Paleogene became Neogene. During phase, reactivation looks limited and, hence, extension transmitted Baix Penedès Fault. manifest development an array backlimb Carme-Cabra Anticline corresponds NE-end El This episode negative accommodation zones between four area ( Vallès-Penedès, Montmell, faults) are characterized presence relay ramps with breaching faults. • controlled inherited structures since Mesozoic. resulted compression theMontmell-Garraf basin.