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Paleoenvironmental changes in southern Siberia during the Late Pleistocene and Holocene-evidence from multiproxy records of the Lake Baikal Region

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地球环境学报 2011年第1期 309-309页

作者： Bezrukova E Tarasov PA Riedel F Kuzmin M I A.P.Vinogradov Institute of GeochemistrySO RASIrkutsk 664033Russia Institute of Geological Sciences Free University Berlin

Worldwide terrestrial and marine sedimentary archives demonstrate that the last 50 ka interval in the Earth’s history experienced a number of long- and short-term climatic ***-resolution and accurately dated pollen and sedimentary records of the late-glacial/early Holocene interval exist for several regions of Europe and East Asia,providing important insight into the environmental dynamics in the North Pacific and North Atlantic ***,a recent global-scale synthesis of the Holocene climatic data demonstrates a lack of palaeorecords of comparable dating quality and resolution from the vast areas of Eurasia,including *** dating problem becomes even more obvious,when the pre-Holocene interval of the late Quaternary is *** Siberia— the region of Russia between;0—120°E and;0—60°N— consists of numerous sublatitudinal mountain ranges and lakes,including Lake Baikal in the *** lake sediments are one of the most promising sources of detailed palaeoenvironmental information,which provide an opportunity for bridging the European and Asian palaeoclimate archives and addressing critical questions concerning Quaternary climatology and *** publications on the Lake Baikal region presented coarse-resolution（millennial- or multicentury-scale） qualitative reconstructions of the Quaternary *** the long cores from Lake Baikal span millions of years research was mainly focused on the Holocene and earlier ***,little is known about glacial intervals due to the problems associated with very low pollen concentrations,poor organic content,low sedimentation rates and poor *** recently,even the YD cooling was not unequivocally identified and dated in the Baikal *** study presents new pollen and diatom records from Lake Kotokel and several regional peadands,and aims to reconstruct regional vegetation and environmental history since;7 ka BP（1 ka=1000 cal a）;to compare it w

关键词： Late Pleistocene MIS 3-1 changes in vegetation cover and climate southern Siberia chronology forcing feedback

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