New interpretations of the Carboniferous stratigraphy of SW Poland based on miospore data

Abstract

New palynostratigraphical studies have been undertaken to elucidate the complex stratigraphy of the Carboniferous succession of the southwestern Poland. Rocks from wells Paproć 29, Katarzynin 2, Marcinki IG 1, Siciny IG 1, Dymek IG 1, Dankowice IG 1, Kalisz IG 1, Września IG 1 and Objezierze IG 1 were studied. Results of these studies facilitate a new interpretation of the stratigraphy and partly clarify timing of Carboniferous deposition and deformation. Stratigraphical interpretation of miospore assemblages proves the presence of Namurian-Westphalian (Pendleian-Alportian and Duckmantian-Asturian) or even younger rocks in the investigated intervals. During that time older rocks, the source of abundant contained miospores and faunal macrofossils, were subject of erosion and the fossils became reworked components in the studied rocks. Repetition of both dated sequences in some sections indicates that inversion of this foreland basin took place after the Bolsovian.