Estimates of Late Glacial and Holocene aeolian activity in Belgium, Poland and Sweden

A set of textural features is proposed as a measure of the degree of transformation of alluvial source deposits into aeolian ones. Analysis of grain-size distribution, quartz-grain rounding and frosting. heavy-mineral and overall mineral composition and micromorphology of quartz-grain surfaces in dune and source deposits in Poland. Belgium and Sweden, enabled a variable degree of sediment transformation to be distinguished. The degree of transformation is termed degree of aeolization. It is shown to be dependent upon the total duration of aeolian episodes. The degree of aeolization of the dune deposits investigated is highest in Poland, intermediate in Belgium and lowest in Sweden.