Characteristics of formation of fortification structures at the hillfort of Idnakar (archaeological and geophysical investigations)

The article considers the method and results of a comprehensive study of fortified objects in the medieval town of Idnakar (Udmurt Republic). The study combined archaeological and geophysical methods. The average line of fortification with a length of 70 m was studied. At least four variants of the frame structure of the frame were proposed. Various models of mound formation have been determined: loamy soil with impurities coated on the outside of crushed clay; sandy mound, covered with loamy soil and crushed clay; loamy soils (inner side) and sandy loam (outer slope) with impurities covered by the inside of crushed clay; a mound formed by crushed clay. The use of archaeological data only does not give us such results. Thus, the presented method opens a new way of reconstructing the structure and composition of the settlements as a whole.