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

中生代盆地构造对加泰罗尼亚海岸山脉新生代构造演化的控制经常被认为是解释其现今结构的关键因素。然而，这种结构继承的细节及其随着地质时间的演变仍在讨论中。在这项工作中，我们展示了基于野外工作、井和大地电磁数据的两个结构横截面，以说明 Gaià-Montmell High 的结构样式和构造演化。在这里，Montmell 断层不仅构成了加泰罗尼亚海岸山脉新近系主要断层之一（Montmell-Vallès 断层系统）的 SW 段，而且还构成了晚侏罗世-早白垩世伸展盆地（Montmell-加拉夫盆地），表明该断层在该地区构造演化中起主要作用的事实。因此，Gaià-Montmell High 的现代结构是新生代连续两次反转的结果。第一个在古近纪期间重新激活了蒙梅尔断层作为挤压。因此，在其他与反转相关的结构中，Gaià-El Camp Thrust 开发了一条主要的 NW 导向地下室下盘捷径。后来，先前在古近纪期间形成的压缩结构在新近纪期间被重新激活为伸展结构。在这个阶段，Montmell 断层的重新激活看起来很有限，因此扩展被传输到 Baix Penedès 断层。Gaià-El Camp 逆冲断层的重新激活还体现在 Carme-Cabra 背斜后肢的一系列伸展断层的发展中，该断层对应于 El Camp 断层的 NE 端。这一负反转事件在该地区存在的四个主要断层（Vallès-Penedès、Montmell、El Camp 和 Baix Penedès 断层）之间形成了调节带，其特征是存在带有断裂断层的中继斜坡。