WARUNKI SEDYMENTACJI FORMACJI Z GLINIKA (BASEN ŚRÓDSUDECKI)

Abstract

DEPOSITIONAL CONDITIONS OF THE GLINIK FORMATION (INTRA-SUDETIC BASIN)

Abstract. This paper deals with the Glinik Formation deposits, which are of the latest Carboniferous (Westphalian D/Stephanian AB) age in the Polish part of the Intra-Sudetic Basin. Description of lithostratigraphy and selected 16 lithofacies and 4 lithofacies assemblages is presented, and sedimentation, origin of clastic material and paleotectonic conditions of sedimentation process are discussed. The lithofacies assemblages in the studied area represent different environments, belonging to the braided and meandering rivers depositional systems. The cyclic character of sedimentation is common. The study of palaeocurrent directions shows that in the NW part of the basin sediment transport was from the N, NW and NE and in the SE part of the basin from the E and SE. During Westphalian D/Stephanian AB, the N and NE part of the basin (i.e. the Polish part of the basin) constituted a peripheric part of the whole Intra-Sudetic Basin. The Rusinowa and Grzmiąca volcanic complexes, the acid volcanic rocks of Krenov, the Sowie Mts gneisses and the Karkonosze granite were the main sediment-source areas for the Polish part of the Intra-Sudetic Basin.