DYNAMICS OF THE LAST GLACIATION IN EASTERN SVALBARD AS INFERRED FROM GLACIER-MOVEMENT INDICATORS

Glacial striae and other ice movement indicators such as roche moutonn ees, glacial erratics, till fabric and glaciotectonic deformation have been used to reconstruct the Late Weichselian ice movements in the re gion of eastern Svalbard and the northern Barents Sea. The ice movemen t pattern may be divided into three main phases: (1) a maximum phase w hen ice flowed out of a centre east or southeast of Kong Karls Land. A t this time the southern part of Spitsbergen was overrun by glacial ic e from the Barents Sea; (2) the phase of deglaciation of the Barents S ea Ice Sheet, when an ice cap was centred between Kong Karls Land and Nordaustlandet. At the same time ice flowed southwards along Storfjord en; and (3) the last phase of the Late Weichselian glaciation in easte rn Svalbard is represented by local ice caps on Spitsbergen, Nordaustl andet, Barentsoya and Edgeoya. The reconstructed ice flow pattern duri ng maximum glaciation is compatible with a centre of uplift in the nor thern Barents Sea as shown by isobase reconstructions and suggested by isostatic modelling.