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The Davisian geographical cycle
The weathering of sedimentary rocks
19 other sections not shown
action angle anticline areas barchan base level basin beach beds boulder boulder clay capture carbon caused Chalk channel chemical weathering clay cliff climate coast concave convex coral corrie debris deposits deserts downcutting drainage drift dunes effect eroded erosion surfaces escarpment example explanation see text flow formation freeze-thaw geomorphology glacial glacier gneiss graded gradient granite gravel headward erosion hypothesis ice sheet inselbergs joints karst lake landforms landscape later layers limestone lithology load longshore drift lower marine mass material meanders moraine movement occur outcrops pattern peneplain periglacial period permeable PLATE plateau Pleistocene polygons Post-glacial present probably raised beaches reefs regions 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 upper usually valley vegetation velocity waste mantle waves wind zone