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The Davisian geographical cycle
The weathering of sedimentary rocks
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action angle anticline areas barchan base level basin beach beds boulder clay capture carbon caused Chalk channel chemical weathering cliff climate coast concave convex coral corrie cycle of erosion debris deposits deserts downcutting drift dunes effect eroded erosion surfaces escarpment example explanation see text flow formation freeze-thaw Geol geomorphology glacial glacier graded gradient granite gravel headward erosion hypothesis ice sheet inselbergs joints karst lake landforms landscape later layer limestone lithology load longshore drift lower marine mass material meanders movement occur outcrops peneplain periglacial period permeable Plate plateau Pleistocene polygons Post-glacial present probably raised beaches reefs regions rejuvenation relief resistant result ridges river rocks sand scree sea level sediments shorelines slope soil solifluxion South Downs stage stream structure subaerial temperature terraces tion tropical uplift upper usually valley vegetation velocity waste mantle waves wind zone