Sequences of the lithofacies and depositional intervals in the Godula Beds of the Polish Outer Carpathians

Abstract

Sekwencje litofacji i interwałów depozycyjnych w warstwach godulskich Karpat The Markov chains procedure was applied to the study on the sequences of lithofacies and depositional intervals in the Godula Beds (Turonian-Lower Senonian) of the Flysch Carpathians. The model (depositional) and modal (a most frequent in profile) diagrams were constructed and corresponding sequences were recognized. It was found that deposition from high-density turbidity currents of variable retardation rates was the dominating mechanism whereas the low-density turbidity currents were rather rare. The newly deposited sediments were commonly eroded by the succeeding, dense currents. Deposition processes were dominated by the two clearly separated environments: channels and depositional lobes. Their systems were subjected to frequent changes due to lateral migration caused by tectonic movements (uplift of Cordilleras and subsidence of sea floor) and eustatic changes of sea level.