Geology of Slovakia

A large area in the southern part of Slovakia is covered with Miocene sediments of the Pannonian Basin system.

The internal zones were formed on the collapsed Variscan crust during Late Paleozoic and Mesozoic extension.

Important nappe stacking of the Internal Western Carpathians occurred gradually since the early Cretaceous.

[12] In the zone surrounding the Pieniny Klippen Belt, sedimentation was not interrupted and continued from the Late Cretaceous to Paleocene in Gosau type basins, forming the Myjava-Hričov Group including the Súľov Paleogene.

A swarm of andesite dikes is also documented in the Pieniny Klippen Belt, however, the Cenozoic volcanic activity was negligible compared to the aforementioned.

[28] The Quaternary glaciations identified in Slovakia are, from oldest to youngest: Donau, Günz, Mindel, Riss and Würm.

[28] During these glaciations glaciers extender downhill from the High Tatras and nonglaciated uplands were subject to frost weathering and solifluction.

formed by Paleozoic rocks of Gemericum hosts veins of siderite, chalcopyrite and tetrahedrite along with the Veitsch-type magnesite (Hnúšťa, Jelšava and Lubeník).

Similar, however, less extensive ore veins are found in the Vihorlat and Slanské vrchy Mountains in Eastern Slovakia.

There are small deposits of natural gas and oil in the Neogene strata of the Vienna Basin together with older Triassic rocks.