The Male Karpaty Mts. structure consists of several superposed nappe units comprising pre-Alpine basement, its Mesozoic cover and superficial nappe complexes. Several Paleozoic volcano-sedimentary successions have been distinguished in the Tatric basement. Contrasting metamorphic overprint and different relationship to both the Bratislava and Modra granitoid bodies account for their Late Variscan tectonic approaching. Crustal dissection produced by long-termed extensional tectonic regime controlled Alpine Tatric dismembering into individual basement sheets. Paleo-Alpine superficial nappes were disturbed by Neoalpine back thrust tectonics. Paleogene and Lower Miocene complexes were incorporated into Male Karpaty Mts. horst structure during Middle Miocene, when the Vienna- and Danube Basins opened.