The geological structure of the Malé Karpaty Mountains reflects a complex, multiphase tectonic evolution. The Tatric crystalline basement and its Permian-to-Cretaceous sedimentary cover have been thrust over the Jurassic formations of the Borinka Subunit. The basement comprises Lower Paleozoic metamorphic rocks of the Pezinok and Pernek groups, intruded by Lower Carboniferous granitoids. Variscan deformation, particularly the development of pervasive foliation (S^V₂) and mineral and stretching lineations (L^V_2t), records syn-metamorphic processes predating granitoid emplacement. Later Variscan phases (D^V₃, D^V₄) introduced folding and localised structural overprints. Alpine deformation overprinted the older structures through several discrete deformational phases. Early Alpine deformational phase (D^A₁) was marked by NW-directed shear, asymmetric folding, and greenschist facies metamorphism (Cretaceous). Later phases (D^A₂, D^A₃) reflect exhumation and Miocene compression, with the latest deformation associated with south-vergent folding and reverse faulting. Together, these events document a long-lived tectonic history shaped by both Paleozoic and Cenozoic orogenic processes.