Relics of the most distal part of the Neogene foreland basin in SW Moravia

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Authors

NEHYBA Slavomír HLADILOVÁ Šárka

Year of publication 2004
Type Article in Periodical
Magazine / Source Bulletin of Geosciences
MU Faculty or unit

Faculty of Science

Citation
Field Geology and mineralogy
Keywords Neogene; foreland basin; passive margin; depositional environment; ferruginous sandstones
Description The locality Nové Syrovice represents the most western outcrop of Neogene marine deposits in SW Moravia. Neogene sands are interpreted as shoreface-foreshore deposits. Sediment supply from the local sources predominates, but material from relative distant sources can be also recognized. Origin of clasts of ferruginous sandstones is connected both with oxidic processes during paleoweathering (in tropic or subtropic climate) and presence of organic material. The exact stratigraphy (Eggenburgian, Lower Badenian?) of the deposits remains unsolved. The paleoecological interpretation brought results about water depth, dynamics, salinity, lighting, aeration and climate. Quartz rich gravels recognised in superposition of Neogene marine sands and in the closest surroundings of the locality represent younger and highly probably fluvial deposits.
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