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Minimum dataset and spatial distribution for possible mapping of Sarmatian deposits, SW part of CPBS

In the palaeogeographic sense, the largest part of Central Paratethys is represented by the Pannonian Basin System (PBS). The southwestern part of that system includes the North Croatian depressions (CPBS). During the Sarmatian (13.0–11.5 Ma) transtensional tectonics were replaced by transpressional. The importance of alluvial fans significantly decreased because regression started, sea level was lowered and salinity was reduced. The studied area belongs to the south-western marginal part of the PBS and the Central Paratethys. There are a few problems with mapping Sarmatian deposits, because it is difficult to distinguish Badenian/Sarmatian/Pannonian boundaries. Since the sampling grid is irregular, mapping by computer software is not favourable and variogram analysis would not be realistic. The best way of mapping this type of area is mapping by “hand”, but also only the marginal part close to present mountains.

Sarmatian; mapping; minimum data; SW part of CPBS

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