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  • the following features of the marginal zone: ablation end moraines, marginal edges of outwash plains, ridges and depressions left by the melting of the cores of ice-cored moraines, collar ridges of melt-out lake basins, and marginal kames and kame-and-kettle
  • of obtaining numeric 3D-reconstructions on the surface form of former ice sheets, given their former margins and the physical character of the substratum. Also results obtained from insolation calculations as well as empirical knowledge on ablation rates from