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Miocene Deposits of Northern Croatia

Miocene deposits in Croatia are mainly present and investigated in the northern part of the country. During the Miocene, northern Croatia was mainly submerged, covered by sea and, to a lesser extent, by brackish and freshwater lakes. A minor part was exposed as land. During the whole of the Palaeogene, present day Croatia was part of the Tethyan ocean, from the Oligocene to the Sarmatian it was part of the Paratethys Sea, and from the Sarmatian to the Pleistocene, part of the Pannonian Lake-Basin. In the sea and flooded lowlands and lakes, rich life existed and intensive sedimentation of clastic and carbonate sediments occurred, with sporadic volcanic activity. Miocene deposits in northern Croatia occur both at the surface and at depth, with thicknesses of up to 8000 m. In these sediments, numerous micro- and macrofossils can be found, such as coralline algae, molluscs, foraminifera, ostracods, diatoms, silicoflagelates, corals, echinoderms, fish, sea mammals, leaves, tree trunks, fruits, pollen, and plenty other fossils and their traces. Miocene sediments of northern Croatia also contain significant mineral resources, such as building stone, dimension stone, coal, oil, gas, sulphur, thermal and drinking water, and others.

Miocene, stratigraphy, Northern Croatia

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