Organodetrital conglomerates with ooids in the Cieszyn Limestone (Tithonian Berriasian) of the Polish Flysch Carpathians and their palaeogeographic significance
Abstract
Zlepieńce organodetrytyczne z ooidami w wapieniach cieszyńskich (tyton berias) polskich Karpat fliszowych i ich znacznie paleogeograficzne
Several beds of organodetrital conglomerates containing ooids were found in the carbonate turbidites of the Upper Cieszyn Limestone (Berriasian) of the Żywiec region. Three microfacies were distinguished: oolilhic-sponge, sponge and pyritic-algal. Their presence prooves fluorishing life on the shallow-water carbonate platform o f the Silesian Ridge at the transition of Jurassic to Cretaceous time, and points to the progressive eastward migration of tectonic movements responsible for the uplift o f successive tectonic blocks within the Ridge. Denudation o f the uplifted areas supplied large volumes of calcareous debris which was deposited along the foot of the Silesian Ridge, first as aprons, then as submarine fans.
Several beds of organodetrital conglomerates containing ooids were found in the carbonate turbidites of the Upper Cieszyn Limestone (Berriasian) of the Żywiec region. Three microfacies were distinguished: oolilhic-sponge, sponge and pyritic-algal. Their presence prooves fluorishing life on the shallow-water carbonate platform o f the Silesian Ridge at the transition of Jurassic to Cretaceous time, and points to the progressive eastward migration of tectonic movements responsible for the uplift o f successive tectonic blocks within the Ridge. Denudation o f the uplifted areas supplied large volumes of calcareous debris which was deposited along the foot of the Silesian Ridge, first as aprons, then as submarine fans.