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We performed seismoacoustic and magnetic investigations of samples taken from Lake Bolshoe Miassovo (Chelyabinsk region, Russia) in 2018. Before sampling, seismoacoustic investigations were conducted in order to study stratification in sediments, reconstruct the reservoir?s history and select core locations with undisturbed stratification. A special hydraulic corer was used for taking long core samples. Five cores up to 5 meters long were obtained. For laboratory investigations, all cores have been cut into smalle...

The last cycle of the glacial history including the glaciation of the Late Pleistocene (100 to 11 kyr BP) and the modern interglacial (Holocene) is a key period in climate research. Understanding the mechanisms of growth, dynamics and decay of ice sheets (the Laurentide ice sheet in North America and the Scandinavian ice sheet in Europe) provides information to understanding past global climate changes and more reliable predictions of the future climate. The direct source of information on the temperature regime a...

Climate reconstruction in the Holocene for the Russian Central Chernozemic region with use of palynological and soil research of deep cores in floodplain deposits and archaeological monuments are carried out. In the Preboreal period area was covered by meadow and grass steppes, pine and birch forests were locally spread. In the Boreal period they were dominated, broadleaved species were noted in small content at its beginning, in its middle span oak and hazel appeared, in the final phase ash and maple added. In th...

Paleosol profiles from the reference section of the Urzhumian stage of Middle Permian in the Cheremushka Ravine, the Kazan Volga region, were studied in order to detail the paleogeographic and palaeoclimatic conditions. Field and laboratory methods, including grain size analysis, optical microscopy, X-ray fluorescence of siliciclastics, X-ray diffraction of clayey component, were used. Urzhumian succession of 70 m thick is represented by red-bed fluvial-lacustrine deposits with predominance of mudstones. The upper...