@ARTICLE{Gosztyła_Marek_Rotunda_2021, author={Gosztyła, Marek and Sikorski, Krystian}, volume={vol. XLIX}, journal={Teka Komisji Urbanistyki i Architektury Oddziału Polskiej Akademii Nauk w Krakowie}, pages={405-417}, howpublished={online}, year={2021}, publisher={Oddział PAN w Krakowie}, abstract={In the paper, which can be treated as a continuation of research intended to identify the time period when the Rotunda of St. Nicholas in Przemyśl had been built, we made another attempt to define the period of the church’s construction based on the current state of the art and with the use of precise research equipment. Our study was aimed at defining the structures of the building’s material obtained via chemical and crystalline composition analysis of collected mortar samples. We also attempted to define the site of the quarry from where the material used to build the church had been procured from, using tools to assess their chemical and crystalline compositions. We identified the composition of the samples via in situ and laboratory testing (instrumental analyses). The findings allowed us to determine the chemical and crystalline composition of mortars and the chemical and crystalline composition of stone and to compare it with other dated buildings.}, type={Artykuły / Articles}, title={Rotunda of St. Nicholas in Przemyśl — study of the structures of the building material}, URL={http://journals.pan.pl/Content/122375/PDF-MASTER/2021-TEKA-25-Gosztyla-Sikorski.pdf}, doi={10.24425/tkuia.2021.138724}, keywords={rotunda, Przemyśl, mortar, FTIR-ATR, XRD}, }