Mediaeval jewellery from the Volga-Kama area in the East-Baltic region

This paper considers jewellery objects of the Volga-Kama provenience of the 9th–13th century revealed at archaeological sites in the territory of North-Western Russia, Latvia, Estonia, Finland and North Sweden. Groups of Kama and Volga imports are identified for the products characteristic of the Volga-Kama region in general, and for “syncretic” objects of the Old-Russian period combining artistic traditions and techniques of different regions. The article notes the concentration of finds of this kind in the South-East Ladoga region and in Novgorod

Development of monitoring of water bodies ecological status by the example of small lakes in the North-western Ladoga region

By the example of the Suuri Lake (0.37 km2) situated in the North-Western Ladoga region, modern aspects of monitoring the ecological state of water bodies are generalized, including 1) assessment of the rates of mass transfer processes in water ecosystems and the factors affecting them; 2) assessment of the integrated properties of water bodies and their ecosystems based on hierarchical schemes summarizing information about the state of subsystems and their properties in the form of composite indices. The results of the study in 2019 are visualized. Quantitative estimates of the chemical and biological composition and physical properties of the aquatic ecosystem, mass transfer rates, factors influencing them are obtained; the values of the integral indicators for the subsystem and their properties (productivity, water quality, stability) and the integral indicators of the systems and their integrative properties as a whole (ecological status, ecological wellbeing) are estimated. The temporal dynamics of the processes, component composition and complex properties of the aquatic ecosystem are investigated.

Staraya Ladoga, SEM investigations of plant remains from palaeosols separated by deposits of the Ladoga transgression. New materials and old problems

This paper presents the results of SEM-examination of palynological complexes of two paleosols at the base of the Staraya Ladoga section. There was obtained evidence of the floodplain genesis of the paleosol directly under- lying the cultural layer of Zemlyanoye hillfort. A new palynological marker has been identified here which enables us to ground the synchronous character of the end of the Ladoga Transgression (in the southern Ladoga region) and the regression of Lake Ilmen (in the northwestern region).