New data on geology of the Middle Cambrian rocks in the Klimontów Anticlinorium (Holy Cross Mts.)

Abstract

The Middle Cambrian rocks in the Klimontów Anticlinorium consist of various sandstones with fossils and trace fossils, accumulated in the littoral zone of a marine basin. The sandstones belong to the Ociesęki Formation and the Usarzów Sandstone Formation but mainly to the Słowiec Formation. From the point of view of biostratigraphy they represent the Insularis, Pinus and Polonicus Zones. The snndstones are now situated in the Bardo and Wygiełzów Synclines and in local tectonic grabens. Faults and cleavage phenomena are dearly visible in these rocks. The geometric and genetic features or these tectonic elements suggest their origin as the result of the stress pair situated in the vertical plane under the thick rock cover. This was realised during the Variscan orogeny.