Clastic Badenian deposits and sedimentary environments of the Roztocze Hills across the Polish-Ukrainian border

Abstract

The sedimentary conditions of the clastic Badenian deposits of the Roztocze Hills are reconstructed, in the territories of Poland and Ukraine. Detailed sedimentological analyses are performed for fourteen exposures. Four petrographic rock types: quartz arenites, quartz arenites with limeclasts, calcarenites with quartz and biocalcarenites have been distinguished. The lithology and microfacies of these rocks point to a high-energy, shallow-water, normalmarine environment connected with the shore zone. Moreover, diversified sets of sedimentological structures, including depositional, deformational and biogenic, are ascribed to the shallow-water high-energy environment. The characteristics of the Badenian succession allow an interpretation of the environment and its change during sedimentation. Deposition during the Badenian in the Roztocze area was connected with the evolution of the Carpathian Foredeep. Initially sedimentation was mainly dependent on hydrodynamic factors, however the influence of diastrophic factors gradually increased.