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Three fluvial series have been distinguished in the Upper Nysa Depression, Kłodzko Basin, central Sudetes. The oldest, the Červeny Potok series, of probable Late Pliocene age, contains fluvial facies, mainly gravelly but also sandy and silty. It is quartz-rich and characterized by strong chemical decomposition of gneiss clasts. The Lichkov series, of probable Early to early Middle Pleistocene age,...
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