Charakterystyka petrograficzno-mineralogiczna nowo rozpoznanych horyzontów tufowych z ogniwa Kłodnicy (turnej, wizen) w basenie lubelskim oraz towarzyszących im zlepieńców i piaskowców wulkanoklastycznych

Abstract

Petrographic-mineralogical characteristics of newly identified tuff horizons from the K³od- nica Member (Tournaisian, Visean) in the Lublin Basin and the associated volcaniclastic conglomerates and sandstones. Prz. Geol., 71: 207–211; doi: 10.7306/2023.15 A b s t r a c t. The purpose of the study was petrographic-mineralogical analysis of volcaniclastic rocks occurring in the Lublin Basin, within the K³odnica Member (Tournaisian, Visean), in seven boreholes. Its results were linked with the results of sedimentological and sequence stratigraphy studies to reconstruct the genesis of the sediments, as well as spatial and age relationships. Fine and coarse ash tuffs were identified, whose composition indicates acidic and alkaline volcanism. Accompanying volcaniclastic conglomerates and sandstones were formed mainly in the Tournaisian, before volcanic activity began. These sediments fill incised valleys, and belong to the oldest Carboniferous sedimentary filling of the Lublin Basin.