LITOSTRATYGRAFIA ORDOWIKU STREFY BIŁGORAJ-NAROL (SE POLSKA)

Z Modliński, B Szymański

Abstract


THE ORDOVICIAN LITHOSTRATIGRAPHY OF THE BIŁGORAJ-NAROL AREA (SOUTHEASTERN POLAND)

Abstract. The Ordovician rocks of Biłgoraj - Narol area were penetrated by 6 boreholes: Doliny 1, Osuchy 1, Kozaki 1, Dyle IG 1, Narol IG 1 and Narol PIG 2. Ten new formal lithostratigraphical units were distinguished and defined: the Biłgoraj Sandstones and Claystones Formation (Lower Tremadoc) with the Frampol Sandstones Member and Goraj Claystones and Silstones Member; next: the Tanew Claystones Formation (Lower Arenig); the Susiec Limestones Formation (Upper Arenig-Llanvirn) with the Paary Limestone Member and the Rebizanty Limestone Member; then the Cieszanów Claystones and Limestones Formation (Upper Llanvirn-Caradoc) with Osuchy Limestone Member. The youngest unit described is the Narol Limy Claystones Formation (Ashgill). Some of the units have a character of the allostratigraphical units ones sensu "North American..." (1983), because are bordered by the sedimentary or sedimentary-erosional unconformities. The lithology, stratigraphical position, thickness, paleontological data and spatial relation of the particular units are presented in Figure 3. Their boundaries have been established and stratotypical sections are proposed.


Keywords


litologia, petrografia, jednostki litostratygraficzne, paleogeografia, ordowik, strefa Biłgoraj-Narol, południowo-wschodnia Polska.

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