Строительные материалы в средневековой архитектуре археологического памятника Дерахейб (Судан)

Abstract

The material for the article was samples of light gray rock with lighter and darker inclusions taken during the study of architectural structures of the archaeological site Deraheib (Sudan), which has been investigated since 2017 by the Nubian Archaeological and Anthropological Mission of the Research Institute and Museum of Anthropology of the Lomonosov Moscow State University (NAAM). This rock was used for making floor in Building 3 (Mosque) and as a bonding material in the walls of the Northern Fortress. Decorative architectural elements carved from the same rock were found during the study of the interior rooms of the Northern Fortress. Samples of this rock were taken into Russia by agreement with the National Corporation for Antiquities and Museums (NCAM) of the Republic of Sudan. The prepared thin sections were examined at the Research Institute and the Museum of Anthropology of the Lomonosov Moscow State University. Results. The analysis of thin sections showed that highly altered volcanic-metamorphic rocks, metamorphosed tuffs of acidic or alkaline composition, widespread in this region of Sudan, served as the material for pouring floors and for the making of a binder in the architectural structures of Deraheib, as well as for decorative architectural elements. Discussion. The conducted research indicates that the architects who erected buildings in Deraheib in the medieval period used locally available material, since it was very difficult to deliver building materials from the Nile Valley, taken into account the location of the monument almost in the center of the Nubian Desert. The tuff deposits at the site allowed the architects to build durable structures using local materials. The results of the study will allow to elaborate more accurate recommendations for the restoration of medieval architectural monuments of Deraheib.