Engineering and geological features of technogenic deposits and cultural layers in the territory of Samara
Darya Vasilieva, Margarita N. Baranova, Andrey V. Maltsev · IOP Conference Series Materials Science and Engineering · 2021
Abstract The engineering and geological features of technogenic deposits in the territory of the city of Samara have been studied. Their features are revealed and a classification is carried out. The article presents the results of a petrographic study of samples taken at the archaeological site of Staraya Samara, Khlebnaya Square, carried out in 2019. The object represents cultural layers that were formed in the XVIII-XIX centuries at the site of the alleged location of the second Samara fortress. The studies were performed under a binocular microscope at an 8.75-fold magnification, in the passing light of a polarization microscope at a 72-fold magnification, and under a digital microscope at a 10-fold magnification. It has been determined that the pebble fraction is represented by quartzite and jasper flint, the sandy and silty fractions are angular quartz fragments with an admixture of undecomposed organic remains. Organic cultural layers, which reach 7-8 meters or more in the ancient part of the city, are especially powerful. Their presence is a limiting factor in modern urban construction.