Abstract
Abstract Superglacial till in a real lowland (Uppland) and in a lowland with distal low plateaus (Närke) is lithologically analysed (grain counting and determination of Ca). As in a previous study of basal till (Gillberg 1964), distribution maps (Figs. 3—6, 9, 10) and distribution diagrams (Figs. 2, 7, 8, II) have been constructed, being the basis for a discussion of the ice movements and the till homogeneity. The glacial development in the Uppland lowland shows that even very small projecting parts of the terrain must have functioned as obstacles, having caused increased contrasts of motion, i.e. an origination of leading zones and lee areas. The new distribution lines confirm the previous conclusions of a lithological homogeneity of till. The standard value of the constant a (in the exponential function) of till is discussed more closely, especially as an expression of the activity of ice.
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