Obliakovy material vrchnopaleozoickych sedimentov hronika v Malych Karpatoch: petrogeneticke a proveniencne otazky

摘要

The paper presents the results of petrographic study of the pebbles in Permian Peterklin Beds, belonging to the Maluzina Fm. and locally to the Upper Carboniterous Nizna Boca Fm. of the Hronic Unit in the Male Karpaty Mts. The pebble material consists of basement rocks - dominantly leucocratic granites and synsedimentary acid volcanics and clastics of intraformation origin. Therefore it is presumed that the source of this material was represented by the basement of the southern parts of that time Tatro-Veporic Unit - the Variscan predecessor of Alpine Tatric and Veporic units. The rocks of the Gemeric Unit provenance were not clearly evidenced in inves-tigated pebbles. Low-grade deformation superimposed upon the basement-rock pebbles indicates a Late-Variscan tectonic event, which occurred approx. inbetween the thermal consolidation of the Variscan granitic massifs and the development of the Upper Paleozoic formations. Mineralization found in chalcedony silicite points to Late Carboniferous low-temperature hydrothermal sulfidic-carbonatic-(phosphatic) metallogenetic period.