Etapy deformacji tektonicznych w utworach paleozoicznych północnej części regionu łysogórskiego Gór Świętokrzyskich
Abstract
MAJOR STAGES IN TECTONIC DEFORMATIONS OF PALEOZOIC ROCKS IN NORTHERN ŁYSOGÓRY REGION, HOLY CROSS MTS
Summary
Tectonic structure of the Bronkowice Anticline (northern part of the Łysogóry region, Holy Cross Mts) is characterized (Fig. 1). The analysis of strike and dip of strata, small-scale folds, faults, joint and cleavage (Figs. 1, 2) made it possible to state that the anticline originated during the Variscan movements, possibly in the Sudetic phase, in result of meridionally oriented compression. Difference in lithology of Silurian and Devonian rocks facilitated origin of dislocations in southern limb of the anticline (Fig. 3). The anticline became subsequently cut into three blocks by transwersal oblique-slip faults (Fig. 3). This was followed by erosion which resulted in origin of the present structure, in which the anticline is cut in the south by the Świślina dislocation with a varying inclination. The results of the studies show that there was no influence of Caledonian movements (regarded as the major tectonic movements for that part of the Holy Cross Mts by some authors - 9, 10) on tectonic structure of this area.
Summary
Tectonic structure of the Bronkowice Anticline (northern part of the Łysogóry region, Holy Cross Mts) is characterized (Fig. 1). The analysis of strike and dip of strata, small-scale folds, faults, joint and cleavage (Figs. 1, 2) made it possible to state that the anticline originated during the Variscan movements, possibly in the Sudetic phase, in result of meridionally oriented compression. Difference in lithology of Silurian and Devonian rocks facilitated origin of dislocations in southern limb of the anticline (Fig. 3). The anticline became subsequently cut into three blocks by transwersal oblique-slip faults (Fig. 3). This was followed by erosion which resulted in origin of the present structure, in which the anticline is cut in the south by the Świślina dislocation with a varying inclination. The results of the studies show that there was no influence of Caledonian movements (regarded as the major tectonic movements for that part of the Holy Cross Mts by some authors - 9, 10) on tectonic structure of this area.