Abstract

Abstract. The climate development of the Late Glacial/Holocene transition is one of the most riveting problem of environmental change under short-term cooling. This paper is devoted to a special reconstruction of climate and Vegetation in the Northern Eurasia with special reference to chronological level at 10,500 years b. p., i. e. just in the middle of the Younger Dryas . Reconstruction of Vegetation was based on detailed palaeo-climate maps with numeric estimation of temperature and precipitation parameters. Concluding results were affirmed by independent palaeodata.

Highlights

  • The reconstruction of natural zonality and its dynamics in the past provides the adequate possibilities to estimate the modern and future environmental condition

  • General information on the environment during the Late Glacial for the former USSR is represented essentially in all monographs, regional overviews and articles devoted to the palaeogeography and geology of Pleistocene and Holocene

  • The climate Simulation worked out for the last "nearest" to the modern time sharp short-term cooling in the Northern Hemisphere has distinctly showed that this cold phase was derived by the cooling ofthe North Atlan¬ tic waters

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Summary

Introduction

The reconstruction of natural zonality and its dynamics in the past provides the adequate possibilities to estimate the modern and future environmental condition. Studies ofthe time interval during the climate transit from the Late Glacial to the Holocene are of great interest because this period includes a sequence of short-term (100 years span) cooling, marked by the geochronological and palaeogeographical data on the whole territory of the Northern Hemisphere. The majority of researchers supposes them to be the natural boundary between Pleis¬. P. The intlux of periglacial Vegetation gave occasion to call it the Younger Dryas (iversen 1954,1967). The intlux of periglacial Vegetation gave occasion to call it the Younger Dryas (iversen 1954,1967) This term be¬ came gradually world-wide known especially due to its identification with the termination ofthe Pleistocene. General information on the environment during the Late Glacial for the former USSR is represented essentially in all monographs, regional overviews and articles devoted to the palaeogeography and geology of Pleistocene and Holocene

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