Aquatic biota response to climate and habitat changes from the Valdai Glaciation to the Meghalayan (Serteya region, Western Dvina Lakeland)
AbstractThe Serteyka River valley is one of the most important archaeological localities in North-Western Russia. The State Hermitage Museum has conducted research in Serteya since the 1970s. The pile-dwelling remnants located within the Great Serteya Palaeolake Basin (GSPB) are the most prominent excavation. The investigation using precise underwater techniques recovered many exceptional remains of the Neolithic settlement that were preserved below the groundwater level in biogenic deposits. The large-scale studies focused till now primarily on relicts of the human settlement and only scarce environmental data were available before the last decade. A broad environmental archaelogical project using cores of organic deposits has been conducted since 2016 in the framework of Polish-Russian cooperation. The 8 m long STIIa core from the deepest lake point has been investigated. It gives a full sequence of the lake history from the Late Valdai Glaciation to the Middle Ages. Multi-proxy analysis of the STIIa core aims at the reconstruction of regional and local habitat conditions (e.g. climate, hydrology, trophic state, water chemistry, and plant communities) at the lake side during the MIS1.
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