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Wastage features of the inland ice sheet in central South Norway

Garnes, Kari; Bergersen, Ole Fredrik
Journal article
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URI
https://hdl.handle.net/1956/2195
Date
1980
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  • Department of Geography [448]
Abstract
Detailed field mapping of different lateral phenomena, striae, texture and till fabric are the basis of a reconstruction of five deglaciation phases in the east Jotunheimen-Gudbrandsdalen area, a landscape with moderate relief in the vicinity of the ice divide. During the wastage, the inland ice sheet was separated into several ice lobes situated in valleys encircled by large ice-free uplands. The slope of the ice surface varied with local changes in the ice-movement pattern as well as due to breaking of ice-dams giving reversal of drainage from ice-dammed lakes. Non-climatic, large marginal moraines are thought to have been formed as a result of locally increased steepness of the ice surface. By tracing the deglaciation phases through two different valley-systems which converge in the lake Mjøsa-area, deglaciation events at the front of the ice lobes.
Publisher
Taylor & Francis

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