Devonian depositional architecture in central segment of the Lublin Trough: preliminary results of integrated seismic and borehole study

Abstract

Seismostratigraphic analysis of two selected seismic lines coupled with sedimentological and Stratigraphic investigations of four deep wells allows for putting forward a revised depositional model for the Middle to Upper Devonian predominantly carbonate succession in the central part of the Lublin Trough. The upper Fransian carbonate ramp prograded towards the north-east over the relatively thin and widespread Middle Devonian to lower Frasnian cycles. The lower Famennian shelf-basin fill consists of carbonate-shaly clinoforms also prograding towards the depocentral axis. The proposed model has important implications for a distribution of source-rocks related to distal condensed portions of the lower Famennian clinoforms and, probably, to distal part of the upper Frasnian ramp.