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2 2025

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Kamienie w murach bliźniaczych kościołów romańskich w Jędrzejowie i Prandocinie

Bromowicz Jan, Figarska-Warchoł Beata, Magiera Janusz

Przegląd Geologiczny

2025

Vol. 73, nr 1

50--56

Detailed macroscopic and microscopic observations made of the wall faces showed that grey and grey-brown calcareous sandstones were used in both churches. They are not very compact, but porous and display similar petrographic compositions (sublithic arenites). In the church in Jędrzejów they are only fine-grained, whereas in the church in Prandocin they are also medium- and coarse-grained. Analysis of the dimensions of the stone blocks indicates that the sandstones have different bedding in the sampled places, which, together with the different grain sizes, allows us to determine the origin of the stone from different exposures. In the case of Prandocin, these were probably outcrops of Badenian sandstone, located about 7 km to the NE in Nasiechowice, and in the case ofJędrzejów, exposures of sandstone of the same age, located 17 km to the E in Korytnica. The physical and mechanical properties of the sandstones are very favourable and represent an optimal choice among the possible rocks fund within a radius of 25 km from the buildings.

Inwentaryzacja geostanowisk południowej części Wzgórz Strzegomskich (Przedgórze Sudeckie) i ich wstępna waloryzacja geoturystyczna

Pawlik Tomasz

Przegląd Geologiczny

2025

Vol. 73, nr 1

57--74

The paper presents results of inventory of geosites occurring in the southern part of the Strzegom Hills (Sudetic Foreland) and their preliminary geotourism valorization. This part of the Strzegom Hills is geologically and geomorphologically diverse. The western and central section lies in the area of the Late Paleozoic Strzegom-Sobótka granitoid massif. In turn, the eastern part is composed of the Early Paleozoic metamorphic envelope of the massif, represented among others by quartz-sericite schists, greenschists, amphibolites and hornfelses. A characteristic feature of the landscape is numerous inselbergs made of crystalline rocks, surrounded by almostflat or slightly undulating areas filled with Cenozoic sediments. Natural rockformations have been preserved on the slopes of some inselbergs. Numerous open-pit mines of raw minerals (mainly rocks, to a lesser extent clays minerals) are also a specific element of the landscape. Fifty-three geosites of various types have been documented. Petrographic, economic, tectonic, mineralogic and geomorphologic geosites are the most numerous. In accordance with the adopted criteria, 53% of the geosites are characterized by high geotouristic attractiveness. Seventy-five percent of the geosites present at leastfour scientific and educational issues.